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Holzapfel C, Waldenberger M, Lorkowski S, Daniel H. Genetics and Epigenetics in Personalized Nutrition: Evidence, Expectations and Experiences. Mol Nutr Food Res 2022; 66:e2200077. [PMID: 35770348 DOI: 10.1002/mnfr.202200077] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2022] [Revised: 05/17/2022] [Indexed: 11/10/2022]
Abstract
With the presentation of the blueprint of the first human genome in 2001 and the advent of technologies for high-throughput genetic analysis, personalized nutrition (PN) became a new scientific field and the first commercial offerings of genotype-based nutrition advice emerged at the same time. Here, we summarize the state of evidence for the effect of genetic and epigenetic factors in the development of obesity, the metabolic syndrome and resulting illnesses such as non-insulin-dependent diabetes mellitus and cardiovascular diseases. We also critically value the concepts of PN that were built around the new genetic avenue from both the academic and a commercial perspective and their effectiveness in causing sustained changes in diet, lifestyle and for improving health. Despite almost 20 years of research and commercial direct-to-consumer offerings, evidence for the success of gene-based dietary recommendations is still generally lacking. This calls for new concepts of future PN solutions that incorporate more phenotypic measures and provide a panel of instruments (e.g., self- and bio-monitoring tools, feedback systems, algorithms based on artificial intelligence) that increases compliance based on the individual´s physical and social environment and value system. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Christina Holzapfel
- Institute for Nutritional Medicine, Technical University of Munich, School of Medicine, Munich, Germany
| | - Melanie Waldenberger
- Research Unit Molecular Epidemiology, Institute of Epidemiology, Helmholtz Zentrum Munich, German Research Center for Environmental Health, Neuherberg, Germany.,German Center for Cardiovascular Research (DZHK), Partner Site Munich Heart Alliance, Munich, Germany
| | - Stefan Lorkowski
- Institute of Nutritional Sciences and Competence Cluster for Nutrition and Cardiovascular Health (nutriCARD) Halle-Jena-Leipzig, Friedrich Schiller University, Jena, Germany
| | - Hannelore Daniel
- Professor emeritus, Technical University of Munich, Freising, Germany
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A high-fibre personalised dietary advice given via a web tool reduces constipation complaints in adults. J Nutr Sci 2022; 11:e31. [PMID: 35573462 PMCID: PMC9066321 DOI: 10.1017/jns.2022.27] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Revised: 03/28/2022] [Accepted: 04/01/2022] [Indexed: 11/07/2022] Open
Abstract
Constipation can greatly impact the quality of life (QoL), which can be relieved by dietary fibres; however, preserving a higher fibre intake remains a challenge. We investigated the effects of a personalised dietary advice (PDA) on fibre intake and mild constipation complaints. A total number of twenty-five adults with mild constipation complaints were included in a 4-week observation period followed by a 4-week personalised intervention. The PDA provided high-fibre alternatives via a web tool. In weeks 1, 4 and 8, dietary intake, constipation complaints and QoL were assessed. Furthermore, participants collected a faecal sample at weeks 1, 4 and 8 to determine microbiota diversity and composition, and short-chain fatty acids (SCFA). Participants completed questions daily for 8 weeks regarding abdominal complaints, stool frequency and stool consistency. Fibre intake in week 8 was significantly higher compared to week 1 (Δ = 5·7 ± 6·7 g, P < 0·001) and week 4 (Δ = 5·2 ± 6·4 g, P < 0·001). Constipation severity and QoL significantly improved at week 8 compared to the observation period (P < 0·001). A higher fibre intake significantly reduced constipation severity (β = -0·031 (-0·05; -0·01), P = 0·001) and the QoL (β = -0·022 (-0·04; -0·01), P = 0·009). Stool consistency (P = 0·040) and abdominal pain (P = 0·030) improved significantly during the intervention period (P = 0·040), but stool frequency did not. Average microbial alpha diversity and composition and SCFA concentrations did not change over time, but indicated individual-specific dynamics. Several SCFAs were associated with constipation complaints. To conclude, a PDA effectively increased fibre intake and subsequently reduced constipation complaints, indicating that guided dietary adjustments are important and feasible in the treatment of mild constipation complaints.
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Key Words
- BMI, body mass index
- Constipation
- Dietary fibre
- EMA, ecological momentary assessment
- FFQ, food frequency questionnaire
- Functional bowel disorders
- IBS-C, Irritable Bowel Syndrome constipation predominant
- MET, metabolic equivalent task
- PAC-QoL, Patient Assessment of Constipation Quality of Life
- PAC-SYM, Patient Assessment of Constipation Symptoms
- PDA, personalised dietary advice
- Personalised nutrition
- QoL, quality of life
- Quality of life
- SQUASH, short questionnaire to assess health-enhancing physical activity
- VAS, visual analogue scale
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Bouwman EP, Reinders MJ, Galama J, Verain MCD. The Impact of Both Individual and Contextual Factors on the Acceptance of Personalized Dietary Advice. Nutrients 2022; 14:nu14091866. [PMID: 35565833 PMCID: PMC9104918 DOI: 10.3390/nu14091866] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Revised: 04/22/2022] [Accepted: 04/27/2022] [Indexed: 02/04/2023] Open
Abstract
(1) Background: The aim of the current study is to investigate which between- and within-person factors influence the acceptance of personalized dietary advice. (2) Methods: A repeated measurements design was used in which 343 participants (M (SD) age = 48 (17.3), 49% female) filled out a baseline survey and started with nine repeated surveys. (3) Results: The results show that the acceptance of personalized dietary advice is influenced by both within-person and between-person factors. The acceptance is higher at lunch compared to breakfast and dinner, higher at home than out of home, higher at moments when individuals have a high intention to eat healthily, find weight control an important food choice motive and have a high healthy-eating self-efficacy. Moreover, the acceptance is higher when individuals do not see the eating context as a barrier and when individuals believe that personalized dietary advice has more benefits than risks. (4) Conclusions: Future behavioral interventions that use personalized dietary advice should consider the context as well as individual differences.
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Affiliation(s)
- Emily P. Bouwman
- Consumer and Chain, Wageningen Economic Research, Wageningen University & Research, 6708 PB Wageningen, The Netherlands; (M.J.R.); (J.G.); (M.C.D.V.)
- Correspondence:
| | - Machiel J. Reinders
- Consumer and Chain, Wageningen Economic Research, Wageningen University & Research, 6708 PB Wageningen, The Netherlands; (M.J.R.); (J.G.); (M.C.D.V.)
| | - Joris Galama
- Consumer and Chain, Wageningen Economic Research, Wageningen University & Research, 6708 PB Wageningen, The Netherlands; (M.J.R.); (J.G.); (M.C.D.V.)
- Academy of Communication & Creative Business, NHL Stenden University of Applied Sciences, 8917 DD Leeuwarden, The Netherlands
| | - Muriel C. D. Verain
- Consumer and Chain, Wageningen Economic Research, Wageningen University & Research, 6708 PB Wageningen, The Netherlands; (M.J.R.); (J.G.); (M.C.D.V.)
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Stewart-Knox BJ, Poínhos R, Fischer ARH, Chaudhrey M, Rankin A, Davison J, Bunting BP, Frewer LJ, Oliveira BMPM. Sex and age differences in attitudes and intention to adopt personalised nutrition in a UK sample. ZEITSCHRIFT FUR GESUNDHEITSWISSENSCHAFTEN = JOURNAL OF PUBLIC HEALTH 2021; 31:1-7. [PMID: 34926128 PMCID: PMC8670611 DOI: 10.1007/s10389-021-01676-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 04/27/2021] [Accepted: 11/11/2021] [Indexed: 11/29/2022]
Abstract
AIM There has been an increase in the development of technologies that can deliver personalised dietary advice. Devising healthy, sustainable dietary plans will mean taking into consideration extrinsic factors such as individual social circumstances. The aim of this study was to identify societal groups more or less receptive to and likely to engage with personalised nutrition initiatives. SAMPLE AND METHODS Volunteers were recruited via a social research agency from within the UK. The resultant sample (N = 1061) was 49% female, aged 18-65 years. RESULTS MANOVA (Tukey HSD applied) indicated that females and younger people (aged 18-29 years) had more favourable attitudes and were more likely to intend to adopt personalised nutrition. There were no differences in attitude toward or intention to adopt personalised nutrition between different education levels, income brackets or occupational groups. CONCLUSION These results imply that females and younger people may be most likely to adopt personalised nutrition in the future. Initiatives to promote healthy eating should target males and older people.
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Affiliation(s)
- Barbara J. Stewart-Knox
- Division of Psychology, School of Social Sciences, University of Bradford, Richmond Road, Bradford, BD71DP UK
| | - Rui Poínhos
- Faculty of Nutrition and Food Sciences, University of Porto, Rua do Campo Alegre, n.° 823, 4150-180 Porto, Portugal
| | - Arnout R. H. Fischer
- Social-Sciences, Marketing and Consumer Behaviour, Wageningen University, Hollandseweg 1, 6706 KN Wageningen, The Netherlands
| | - Mutassam Chaudhrey
- Division of Psychology, School of Social Sciences, University of Bradford, Richmond Road, Bradford, BD71DP UK
| | - Audrey Rankin
- School of Pharmacy, Queen’s University Belfast, 97 Lisburn Road, Belfast, BT9 7BL UK
| | - Jenny Davison
- School of Psychology, Ulster University, Cromore Road, Coleraine, County Londonderry BT52 1SA UK
| | - Brendan P. Bunting
- School of Psychology, Ulster University, Cromore Road, Coleraine, County Londonderry BT52 1SA UK
| | - Lynn J. Frewer
- School of Natural and Environmental Sciences, Newcastle University, Newcastle Upon Tyne, NE191AA UK
| | - Bruno M. P. M. Oliveira
- Faculty of Nutrition and Food Sciences, University of Porto, Rua do Campo Alegre, n.° 823, 4150-180 Porto, Portugal
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Pérez-Troncoso D, Epstein DM, Castañeda-García JA. Consumers' Preferences and Willingness to Pay for Personalised Nutrition. APPLIED HEALTH ECONOMICS AND HEALTH POLICY 2021; 19:757-767. [PMID: 33900567 DOI: 10.1007/s40258-021-00647-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 03/30/2021] [Indexed: 06/12/2023]
Abstract
INTRODUCTION Personalised nutrition (PN) has great potential for disease prevention, particularly if coupled with the power and accessibility of mobile technology. However, success of PN interventions will depend on the willingness of users to subscribe. This study investigates the factors associated with potential users' perceived value of PN and heterogeneity in these values. METHODS A discrete choice experiment was carried out in a representative sample (N = 429 valid responses) from the adult population in Spain. The results were analysed in line with McFadden's Random Utility Theory, using conditional and mixed logit models in addition to a latent class logit model. RESULTS The conditional and mixed logit models revealed the existence of a significant preference and willingness to pay for personalised nutrition, but the effect on average was not large for the highest level of personalisation. The latent class logit revealed four classes of respondent: those who would be likely to pay for a high level of personalised nutrition service, those who would use it if it were heavily subsidised, those who would use only a basic nutrition service, and those who would not be willing to engage. These results could be useful for the design and targeting of effective personalised nutrition services. CONCLUSIONS Over half of adults currently perceive some individual benefit in a high level of PN, which may justify some degree of public subsidy in investment and delivery of such a service.
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Affiliation(s)
| | - David M Epstein
- Department of Applied Economics, University of Granada, Granada, Spain
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van der Haar S, Hoevenaars FPM, van den Brink WJ, van den Broek T, Timmer M, Boorsma A, Doets EL. Exploring the Potential of Personalized Dietary Advice for Health Improvement in Motivated Individuals With Premetabolic Syndrome: Pretest-Posttest Study. JMIR Form Res 2021; 5:e25043. [PMID: 34185002 PMCID: PMC8277310 DOI: 10.2196/25043] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2020] [Revised: 04/11/2021] [Accepted: 05/19/2021] [Indexed: 12/12/2022] Open
Abstract
Background Dietary quality plays an essential role in the prevention and management of metabolic syndrome (MetS). Objective The aim of this pilot study is to organize personalized dietary advice in a real-life setting and to explore the effects on dietary intake, metabolic health, and perceived health. Methods We followed a one-group pretest-posttest design and included 37 individuals at risk of MetS, who indicated motivation to change dietary behavior. For a period of 16 weeks, participants received personalized advice (t=0 and t=8) and feedback (t=0, t=4, t=8, t=12 and t=16) on dietary quality and metabolic health (ie, waist circumference, BMI, blood pressure, lipid profile, fasting glucose levels, and C-peptide). Personalized advice was generated in a two-stage process. In stage 1, an automated algorithm generated advice per food group, integrating data on individual dietary quality (Dutch Healthy Diet Index; total score 8-80) and metabolic health parameters. Stage 2 included a telephone consultation with a trained dietitian to define a personal dietary behavior change strategy and to discuss individual preferences. Dietary quality and metabolic health markers were assessed at t=0, t=8, and t=16. Self-perceived health was evaluated on 7-point Likert scales at t=0 and t=16. Results At the end of the study period, dietary quality was significantly improved compared with the baseline (Dutch Healthy Diet Index +4.3; P<.001). In addition, lipid profile (triglycerides, P=.02; total cholesterol, P=.01; high-density lipoprotein, P<.001; and low-density lipoprotein, P<.001), BMI (P<.001), waist circumference (P=.01), and C-peptide (P=.01) were all significantly improved, whereas plasma glucose increased by 0.23 nmol/L (P=.04). In line with these results, self-perceived health scores were higher at t=16 weeks than at baseline (+0.67; P=.005). Conclusions This exploratory study showed that personalized dietary advice resulted in positive effects on dietary behavior, metabolic health, and self-perceived health in motivated pre-MetS adults. The study was performed in a do-it-yourself setting, highlighting the potential of at-home health improvement through dietary changes. Trial Registration ClinicalTrials.gov NCT04595669; https://clinicaltrials.gov/ct2/show/NCT04595669
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Affiliation(s)
- Sandra van der Haar
- Wageningen Food & Biobased Research, Wageningen University & Research, Wageningen, Netherlands
| | - Femke P M Hoevenaars
- Microbiology & Systems Biology Department, TNO, Netherlands Organization for Applied Scientific Research, Zeist, Netherlands
| | - Willem J van den Brink
- Microbiology & Systems Biology Department, TNO, Netherlands Organization for Applied Scientific Research, Zeist, Netherlands
| | - Tim van den Broek
- Microbiology & Systems Biology Department, TNO, Netherlands Organization for Applied Scientific Research, Zeist, Netherlands
| | - Mariëlle Timmer
- Wageningen Food & Biobased Research, Wageningen University & Research, Wageningen, Netherlands
| | - André Boorsma
- Microbiology & Systems Biology Department, TNO, Netherlands Organization for Applied Scientific Research, Zeist, Netherlands
| | - Esmée L Doets
- Wageningen Food & Biobased Research, Wageningen University & Research, Wageningen, Netherlands
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Szakály Z, Kovács B, Szakály M, T. Nagy-Pető D, Popovics P, Kiss M. Consumer acceptance of genetic-based personalized nutrition in Hungary. GENES & NUTRITION 2021; 16:3. [PMID: 33648454 PMCID: PMC7923598 DOI: 10.1186/s12263-021-00683-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Accepted: 02/06/2021] [Indexed: 01/28/2023]
Abstract
BACKGROUND Despite the increasing number of personalized nutrition services available on the market, nutrigenomics-based level of personalization is still the exception rather than a mainstream activity. This can be partly explained by various factors of consumer acceptance of the new technology. While consumer attitudes toward genetic tests aiming to reveal the risks of a predisposition to various illnesses have already been examined by several research studies worldwide; consumer acceptance of nutrigenomics-based personalized nutrition has only been examined by a significantly lower number of papers, especially in the Central and Eastern European region. OBJECTIVE The purpose of this paper is to examine consumer acceptance of genetic-based personalized nutrition in Hungary. Therefore a national representative survey was conducted involving 1000 individuals. The starting point of the model used is the assumption that the consumer acceptance of personalized nutrition is influenced by its consumer perceptions, which are affected by psychological processes that, in a more general sense, determine acceptance of food innovations. RESULTS The results show that 23.5% of respondents accept genetic test-based personalized nutrition. Women were found to reject the new technology in a significantly smaller proportion than men. The relationship between other demographic variables (i.e. age groups, education and subjective income level) and the perception of genetic-based personalized nutrition is also significant. Our results indicate that it is perceived cost/benefit that is most strongly related to genetically based personalized dietary preferences, followed by perceived risk and subjective norms. Perceived uncertainty and perceived behavioural control, however, have only a weak relationship with genetic-based personalized dietary preferences. CONCLUSIONS Compared with the magnitude of the effect of socio-demographic criteria, it can be concluded that, on the whole, psychological processes in the individual have a greater influence on the development of preferences for genetic-based personalized nutrition than any socio-demographic factor. This also confirms the trend that there are more and more value-added products or value propositions (where a significant part of the value added is to be found in product innovation), for which psychological characteristics are/should be given more emphasis among the segmentation criteria.
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Affiliation(s)
- Zoltán Szakály
- Institute of Marketing and Commerce, Faculty of Economics and Business, University of Debrecen, Debrecen, 4032 Hungary
| | - Bence Kovács
- Institute of Marketing and Commerce, Faculty of Economics and Business, University of Debrecen, Debrecen, 4032 Hungary
| | - Márk Szakály
- Institute of Marketing and Commerce, Faculty of Economics and Business, University of Debrecen, Debrecen, 4032 Hungary
| | - Dorka T. Nagy-Pető
- Institute of Marketing and Commerce, Faculty of Economics and Business, University of Debrecen, Debrecen, 4032 Hungary
| | - Péter Popovics
- Institute of Applied Economics Sciences, Faculty of Economics and Business, University of Debrecen, Debrecen, 4032 Hungary
| | - Marietta Kiss
- Institute of Marketing and Commerce, Faculty of Economics and Business, University of Debrecen, Debrecen, 4032 Hungary
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Mustapa MAC, Amin L, Frewer LJ. Predictors of stakeholders’ intention to adopt nutrigenomics. GENES & NUTRITION 2020; 15:16. [PMID: 32962632 PMCID: PMC7509940 DOI: 10.1186/s12263-020-00676-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Accepted: 09/10/2020] [Indexed: 12/18/2022]
Abstract
Background Nutrigenomics is an emerging science that studies the relationship between genes, diet and nutrients that can help prevent chronic disease. The development of this science depends on whether the public accept its application; therefore, predicting their intention to adopt it is important for its successful implementation. Objective This study aims to analyse Malaysian stakeholders’ intentions to adopt nutrigenomics, and determines the factors that influence their intentions. Methods A survey was conducted based on the responses of 421 adults (aged 18 years and older) and comprising two stakeholder groups: healthcare providers (n = 221) and patients (n = 200) who were located in the Klang Valley, Malaysia. The SPSS software was used to analyse the descriptive statistics of intention to adopt nutrigenomics and the SmartPLS software was used to determine the predicting factors affecting their decisions to adopt nutrigenomics. Results The results show that the stakeholders perceived the benefits of nutrigenomics as outweighing its risks, suggesting that the perceived benefits represent the most important direct predictor of the intention to adopt nutrigenomics. The perceived risks of nutrigenomics, trust in key players, engagement with medical genetics and religiosity also predict the intention to adopt nutrigenomics. Additionally, the perceived benefits of nutrigenomics served as a mediator for four factors: perceived risks of nutrigenomics, engagement with medical genetics, trust in key players and religiosity, whilst the perceived risks were a mediator for engagement with medical genetics. Conclusion The findings of this study suggest that the intentions of Malaysian stakeholders to adopt nutrigenomics are a complex decision-making process where all the previously mentioned factors interact. Although the results showed that the stakeholders in Malaysia were highly positive towards nutrigenomics, they were also cautious about adopting it.
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Knowledge, opinions and expectations of adults concerning personalised genotype-based dietary recommendations: a German survey. Public Health Nutr 2020; 24:1916-1926. [PMID: 33070793 PMCID: PMC8094433 DOI: 10.1017/s1368980020004152] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Objective: To assess the knowledge, opinions and expectations of persons with and without obesity concerning personalised genotype-based nutrition. Design: Questions about nutrition, weight management and personalised genotype-based dietary recommendations were asked via standardised telephone-based interviews. Sociodemographic and anthropometric data were collected. The data were statistically weighted by age, gender, education, domicile and BMI. Setting: Germany. Participants: Representative sample of the German population (n 1003) randomly sampled via a scientific Random Digit dial method plus 354 adults with a BMI ≥ 30·0 kg/m2 to enlarge the sample. Results: Data of 1357 participants were analysed (51·1 % female, age: 50·5 ± 18·5 years, 15·9 % adults with a BMI ≥ 30·0 kg/m2). About 42 % or 19 % of the survey participants stated to know the terms personalised dietary recommendation or genotype-based dietary recommendation, respectively. Of those, 15·8 % indicated to have an experience with a personalised or genotype-based dietary recommendation. Almost 70 % of the survey participants believed that a genotype-based dietary recommendation is a reasonable measure for weight management. About 55 % of the survey participants pointed out that a genotype-based dietary recommendation is an effective concept in general. One-third of the survey participants (34·6 %) indicated to conceive the usage of a genotype-based dietary recommendation. Conclusion: Most of the survey participants did not know the term personalised or genotype-based dietary recommendation. One-third of the study participants are interested to use a genotype-based dietary recommendation. Therefore, more education of the public is necessary to properly help people making informed and serious decisions and assessing commercially available direct-to-consumer genetic tests.
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Determinants of stakeholders' intention to adopt pharmacogenomic. THE PHARMACOGENOMICS JOURNAL 2020; 20:801-812. [PMID: 32457399 DOI: 10.1038/s41397-020-0167-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2019] [Revised: 05/08/2020] [Accepted: 05/14/2020] [Indexed: 12/28/2022]
Abstract
Pharmacogenomics (PGx) testing, which aims to identify the genes that affect our responses to drugs, has been favoured by healthcare professionals as a means of maximising drug efficacy and improving the safety and cost-effectiveness of healthcare. Support from the public is needed to determine the successful development of this technology and its implementation in society. Therefore, the objective of this paper was to analyse factors that influence stakeholders' intentions to adopt pharmacogenomic testing in Malaysia. A validated instrument was administered through face-to-face interviews with a total of 421 adult respondents who were stratified according to 2 stakeholder groups: healthcare providers (n = 221) and patients/family members (n = 200). The data were then analysed using SPSS® version 24 software and the advanced multivariate statistical approach of Partial Least Square (PLS) path modelling in order to analyse the complex relationships among variables. Results of the studies indicated that the Malaysian stakeholders had a high amount of trust in the key players (mean score of 5.31), perceived high benefits (mean score of 5.53) and claimed to have high intentions of adopting PGx (mean score of 5.39). The majority of the predictors have significant direct relationships with the intention to adopt PGx, with the exception of moral concerns. Perceived benefits appeared to be the most important direct predictor of the intention to adopt PGx testing (ß = 0.371, P < 0.001) followed by trust in the key players (ß = 0.312, P < 0.001), engagement (ß = 0.272, P < 0.001) and religiosity (ß = 0.133, P < 0.01). In addition, perceived risks also had a direct negative association with the intention to adopt PGx (ß = -0.096, P < 0.05). At the same time, the perceived benefits also served as a mediator for all the other factors except risk. The results provide insights into the multidimensional nature of the determinants of the intention to adopt PGx testing in Malaysia. Although the results showed that the stakeholders in Malaysia were very positive towards PGx testing, they were also cautious about it. The predictors identified in this study can serve as indicators for social acceptance of PGx testing to facilitate the clinical research and implementation of PGx.
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Reinders MJ, Bouwman EP, van den Puttelaar J, Verain MCD. Consumer acceptance of personalised nutrition: The role of ambivalent feelings and eating context. PLoS One 2020; 15:e0231342. [PMID: 32282841 PMCID: PMC7153894 DOI: 10.1371/journal.pone.0231342] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2019] [Accepted: 03/22/2020] [Indexed: 01/09/2023] Open
Abstract
Providing dietary suggestions based on an individual's nutritional needs may contribute to the prevention of non-communicable dietary related diseases. Consumer acceptance is crucial for the success of these personalised nutrition services. The current study aims to build on previous studies by exploring whether ambivalent feelings and contextual factors could help to further explain consumers' usage intentions regarding personalised nutrition services. An online administered survey was conducted in December 2016 with a final sample of 797 participants in the Netherlands. Different models were tested and compared by means of structural equation modelling. The final model indicated that the result of weighing personalisation benefits and privacy risks (called the risk-benefit calculus) is positively related to the intention to use personalised nutrition advice, suggesting a more positive intention when more benefits than risks are perceived. Additionally, the model suggests that more ambivalent feelings are related to a lower intention to use personalised nutrition advice. Finally, we found that the more the eating context is perceived as a barrier to use personalised nutrition advice, the more ambivalent feelings are perceived. In conclusion, the current study suggests the additional value of ambivalent feelings as an affective construct, and eating context as a possible barrier in predicting consumers' intention to use personalised nutrition advice. This implies that personalised nutrition services may need to address affective concerns and consider an individual's eating context.
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Affiliation(s)
- Machiel J. Reinders
- Wageningen Economic Research, Wageningen University & Research, Wageningen, The Netherlands
| | - Emily P. Bouwman
- Wageningen Economic Research, Wageningen University & Research, Wageningen, The Netherlands
| | - Jos van den Puttelaar
- Wageningen Economic Research, Wageningen University & Research, Wageningen, The Netherlands
| | - Muriel C. D. Verain
- Wageningen Economic Research, Wageningen University & Research, Wageningen, The Netherlands
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Abrahams M, Frewer L, Bryant E, Stewart-Knox B. Personalised Nutrition Technologies and Innovations: A Cross-National Survey of Registered Dietitians. Public Health Genomics 2019; 22:119-131. [DOI: 10.1159/000502915] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2019] [Accepted: 08/25/2019] [Indexed: 11/19/2022] Open
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Limon-Miro AT, Lopez-Teros V, Astiazaran-Garcia H. Dynamic Macronutrient Meal-Equivalent Menu Method: Towards Individual Nutrition Intervention Programs. Methods Protoc 2019; 2:E78. [PMID: 31491882 PMCID: PMC6789454 DOI: 10.3390/mps2030078] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2019] [Revised: 08/24/2019] [Accepted: 09/03/2019] [Indexed: 11/23/2022] Open
Abstract
Nutrition interventions should reflect the state of the art in science and dietetics to meet each patient's requirements. Incorporating new knowledge into individualized food-based nutrition interventions is a major challenge, and health care professionals constantly search for novel approaches through specific and standardized methods. The dynamic macronutrient meal-equivalent menu method involves individuals making informed food choices that match their requirements, schedule, and food availability and affinity, helping them maintain a sense of control and motivation to adhere to a nutrition intervention program. This protocol includes the steps required to prepare a nutrition plan containing equivalent meal options consistent with the patient's needs and preferences. Standard food servings are planned according to population specific dietary guidelines and individual characteristics. Servings are distributed at required mealtimes, and are all equivalent in energy and macronutrient content, providing every patient with interchangeable choices within each mealtime. This empowers individuals to select foods in a guided format whilst adhering to a dietary plan. Acceptable variations for calculated energy and macronutrient content are as follows: protein ±1 g/day, fat ±1 g/day, carbohydrate ±2 g/day, and energy ±15 kcal/day. Following this method, health care professionals can develop individualized nutrition intervention programs that may improve patients' adherence, nutritional status, and health.
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Affiliation(s)
- Ana Teresa Limon-Miro
- Department of Nutrition, Centro de Investigacion en Alimentacion y Desarrollo A.C. (CIAD), Carretera Gustavo Enrique Astiazaran Rosas 46, Hermosillo 83304, Sonora, Mexico
| | - Veronica Lopez-Teros
- Department of Chemical and Biological Sciences, Universidad de Sonora, Hermosillo 83000, Sonora, Mexico
| | - Humberto Astiazaran-Garcia
- Department of Nutrition, Centro de Investigacion en Alimentacion y Desarrollo A.C. (CIAD), Carretera Gustavo Enrique Astiazaran Rosas 46, Hermosillo 83304, Sonora, Mexico.
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Rohde A, Duensing A, Dawczynski C, Godemann J, Lorkowski S, Brombach C. An App to Improve Eating Habits of Adolescents and Young Adults (Challenge to Go): Systematic Development of a Theory-Based and Target Group-Adapted Mobile App Intervention. JMIR Mhealth Uhealth 2019; 7:e11575. [PMID: 30903746 PMCID: PMC6709564 DOI: 10.2196/11575] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2018] [Revised: 01/23/2019] [Accepted: 03/04/2019] [Indexed: 12/17/2022] Open
Abstract
Background Due to the widespread use of mobile phones, dietary mobile apps are promising tools for preventing diet-related noncommunicable diseases early in life. However, most of the currently available nutrition apps lack scientific evaluation and user acceptance. Objective The objective of this study was the systematic design of a theory-driven and target group–adapted dietary mobile app concept to promote healthy eating habits with a focus on drinking habits as well as consumption of fruits and vegetables in adolescents and young adults, especially from disadvantaged backgrounds. Methods The design process was guided by the behavior change wheel (BCW). The development process comprised 3 stages. In stage 1, the target behavior was specified, and facilitators and barriers were identified. Furthermore, important insights into target group interests, needs, and values in the field of nutrition and apps were revealed. To this end, 2 empirical studies were conducted with the target group. In stage 2, results of stage 1 were translated into behavior change techniques (BCTs) and, finally, into app functionalities and features. Consequently, in stage 3, the concept was evaluated and optimized through expert interviews. Results Facilitators and barriers for achieving the target behavior were psychological capabilities (eg, self-efficacy), reflective motivation (eg, fitness), automatic motivation, social support, and physical opportunity (eg, time). Target group interests, needs, and values in the field of nutrition were translated into target group preferences for app usage, for example, low usage effort, visual feedback, or recipes. Education, training, incentives, persuasion, and enablement were identified as relevant intervention functions. Together with the target group preferences, these were translated via 14 BCTs, such as rewards, graded tasks, or self-monitoring into the app concept Challenge to go (C2go). The expert evaluation suggested changes of some app features for improving adherence, positive health effects, and technical feasibility. The C2go concept comprises 3 worlds: the (1) drinking, (2) vegetable, and (3) fruit worlds. In each world, the users are faced with challenges including feedback and a quiz. Tips were developed based on the health action process approach and to help users gain challenges and, thereby, achieve the target behavior. Challenges can be played alone or against someone in the community. Due to different activities, points can be collected, and levels can be achieved. Collected points open access to an Infothek (information section), where users can choose content that interests them. An avatar guides user through the app. Conclusions C2go is aimed at adolescents and young adults and aims to improve their fruit and vegetable consumption as well as drinking habits. It is a theory-driven and target group–adapted dietary mobile intervention concept that uses gamification and was systematically developed using the BCW.
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Affiliation(s)
- Anna Rohde
- Institute of Nutritional Sciences, Faculty of Biological Sciences, Friedrich Schiller University Jena, Jena, Germany.,Competence Cluster for Nutrition and Cardiovascular Health, Halle-Jena-Leipzig, Germany.,Department of Communication and Engagement in Agricultural, Nutritional and Environmental Sciences, Justus Liebig University Giessen, Giessen, Germany
| | - Anja Duensing
- Institute of Nutritional Sciences, Faculty of Biological Sciences, Friedrich Schiller University Jena, Jena, Germany.,Competence Cluster for Nutrition and Cardiovascular Health, Halle-Jena-Leipzig, Germany
| | - Christine Dawczynski
- Institute of Nutritional Sciences, Faculty of Biological Sciences, Friedrich Schiller University Jena, Jena, Germany.,Competence Cluster for Nutrition and Cardiovascular Health, Halle-Jena-Leipzig, Germany
| | - Jasmin Godemann
- Department of Communication and Engagement in Agricultural, Nutritional and Environmental Sciences, Justus Liebig University Giessen, Giessen, Germany
| | - Stefan Lorkowski
- Institute of Nutritional Sciences, Faculty of Biological Sciences, Friedrich Schiller University Jena, Jena, Germany.,Competence Cluster for Nutrition and Cardiovascular Health, Halle-Jena-Leipzig, Germany
| | - Christine Brombach
- Institute of Nutritional Sciences, Faculty of Biological Sciences, Friedrich Schiller University Jena, Jena, Germany.,Institute of Food and Beverage Innovation, Zurich University of Applied Sciences, Zurich, Switzerland
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Vallée Marcotte B, Cormier H, Garneau V, Robitaille J, Desroches S, Vohl MC. Nutrigenetic Testing for Personalized Nutrition: An Evaluation of Public Perceptions, Attitudes, and Concerns in a Population of French Canadians. Lifestyle Genom 2019; 11:155-162. [DOI: 10.1159/000499626] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2019] [Accepted: 03/12/2019] [Indexed: 11/19/2022] Open
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16
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A Scientific Perspective of Personalised Gene-Based Dietary Recommendations for Weight Management. Nutrients 2019; 11:nu11030617. [PMID: 30875721 PMCID: PMC6471589 DOI: 10.3390/nu11030617] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2019] [Revised: 03/06/2019] [Accepted: 03/09/2019] [Indexed: 01/06/2023] Open
Abstract
Various studies showed that a "one size fits all" dietary recommendation for weight management is questionable. For this reason, the focus increasingly falls on personalised nutrition. Although there is no precise and uniform definition of personalised nutrition, the inclusion of genetic variants for personalised dietary recommendations is more and more favoured, whereas scientific evidence for gene-based dietary recommendations is rather limited. The purpose of this article is to provide a science-based viewpoint on gene-based personalised nutrition and weight management. Most of the studies showed no clinical evidence for gene-based personalised nutrition. The Food4Me study, e.g., investigated four different groups of personalised dietary recommendations based on dietary guidelines, and physiological, clinical, or genetic parameters, and resulted in no difference in weight loss between the levels of personalisation. Furthermore, genetic direct-to-consumer (DTC) tests are widely spread by companies. Scientific organisations clearly point out that, to date, genetic DTC tests are without scientific evidence. To date, gene-based personalised nutrition is not yet applicable for the treatment of obesity. Nevertheless, personalised dietary recommendations on the genetic landscape of a person are an innovative and promising approach for the prevention and treatment of obesity. In the future, human intervention studies are necessary to prove the clinical evidence of gene-based dietary recommendations.
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Vallée Marcotte B, Cormier H, Garneau V, Robitaille J, Desroches S, Vohl MC. Current knowledge and interest of French Canadians regarding nutrigenetics. GENES AND NUTRITION 2019; 14:5. [PMID: 30820262 PMCID: PMC6380034 DOI: 10.1186/s12263-019-0629-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/30/2018] [Accepted: 02/01/2019] [Indexed: 01/19/2023]
Abstract
Objective The purpose of this study was to draw a global portrait of the current knowledge and interest regarding nutrigenetics in a population of French Canadians from the province of Quebec (Canada). Methods A total of 2238 residents from the province of Quebec, Canada, were recruited via social networks and from the Laval University employee/student lists to participate in a 37-question online survey on nutrigenetics. Results Most participants were not familiar with the term “nutrigenetics” (82.7%). Participants with good genetic literacy (26.8%) were less interested in nutrigenetic testing (p < 0.0001). The vast majority of participants (90.7%) reported to be willing to follow a personalised diet based on nutrigenetic testing, especially if they came to know themselves as carriers of a polymorphism increasing the risk of certain diseases. Participants had a higher interest in testing related to metabolic response to macronutrients (types of sugars, fats and proteins) than to micronutrients or other nutrients related to food intolerance. Conclusions The attitude of French Canadians about nutrigenetics is very consistent with the results from other surveys published in the literature. Although few individuals are familiar with nutrigenetics, the public’s attitude towards nutrigenetics is globally favourable. Electronic supplementary material The online version of this article (10.1186/s12263-019-0629-7) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Bastien Vallée Marcotte
- Institute of Nutrition and Functional Foods (INAF), Laval University, 2440 Hochelaga Blvd, Quebec, QC G1V 0A6 Canada
| | - Hubert Cormier
- Institute of Nutrition and Functional Foods (INAF), Laval University, 2440 Hochelaga Blvd, Quebec, QC G1V 0A6 Canada
| | - Véronique Garneau
- Institute of Nutrition and Functional Foods (INAF), Laval University, 2440 Hochelaga Blvd, Quebec, QC G1V 0A6 Canada
| | - Julie Robitaille
- Institute of Nutrition and Functional Foods (INAF), Laval University, 2440 Hochelaga Blvd, Quebec, QC G1V 0A6 Canada
| | - Sophie Desroches
- Institute of Nutrition and Functional Foods (INAF), Laval University, 2440 Hochelaga Blvd, Quebec, QC G1V 0A6 Canada
| | - Marie-Claude Vohl
- Institute of Nutrition and Functional Foods (INAF), Laval University, 2440 Hochelaga Blvd, Quebec, QC G1V 0A6 Canada
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Clark B, Panzone LA, Stewart GB, Kyriazakis I, Niemi JK, Latvala T, Tranter R, Jones P, Frewer LJ. Consumer attitudes towards production diseases in intensive production systems. PLoS One 2019; 14:e0210432. [PMID: 30629667 PMCID: PMC6328233 DOI: 10.1371/journal.pone.0210432] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2018] [Accepted: 12/21/2018] [Indexed: 11/18/2022] Open
Abstract
Many members of the public and important stakeholders operating at the upper end of the food chain, may be unfamiliar with how food is produced, including within modern animal production systems. The intensification of production is becoming increasingly common in modern farming. However, intensive systems are particularly susceptible to production diseases, with potentially negative consequences for farm animal welfare (FAW). Previous research has demonstrated that the public are concerned about FAW, yet there has been little research into attitudes towards production diseases, and their approval of interventions to reduce these. This research explores the public’s attitudes towards, and preferences for, FAW interventions in five European countries (Finland, Germany, Poland, Spain and the UK). An online survey was conducted for broilers (n = 789), layers (n = 790) and pigs (n = 751). Data were analysed by means of Kruskal-Wallis ANOVA, exploratory factor analysis and structural equation modelling. The results suggest that the public have concerns regarding intensive production systems, in relation to FAW, naturalness and the use of antibiotics. The most preferred interventions were the most “proactive” interventions, namely improved housing and hygiene measures. The least preferred interventions were medicine-based, which raised humane animal care and food safety concerns amongst respondents. The results highlighted the influence of the identified concerns, perceived risks and benefits on attitudes and subsequent behavioural intention, and the importance of supply chain stakeholders addressing these concerns in the subsequent communications with the public.
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Affiliation(s)
- Beth Clark
- School of Natural and Environmental Sciences, Newcastle University, Newcastle upon Tyne, United Kingdom
| | - Luca A. Panzone
- School of Natural and Environmental Sciences, Newcastle University, Newcastle upon Tyne, United Kingdom
| | - Gavin B. Stewart
- School of Natural and Environmental Sciences, Newcastle University, Newcastle upon Tyne, United Kingdom
| | - Ilias Kyriazakis
- School of Natural and Environmental Sciences, Newcastle University, Newcastle upon Tyne, United Kingdom
| | - Jarkko K. Niemi
- Natural Resources Institute Finland (Luke), Seinäjoki, Finland
| | - Terhi Latvala
- Natural Resources Institute Finland (Luke), Seinäjoki, Finland
| | - Richard Tranter
- School of Agriculture, Policy and Development, University of Reading, Whiteknights, Reading, United Kingdom
| | - Philip Jones
- School of Agriculture, Policy and Development, University of Reading, Whiteknights, Reading, United Kingdom
| | - Lynn J. Frewer
- School of Natural and Environmental Sciences, Newcastle University, Newcastle upon Tyne, United Kingdom
- * E-mail:
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Kendall H, Naughton P, Kuznesof S, Raley M, Dean M, Clark B, Stolz H, Home R, Chan MY, Zhong Q, Brereton P, Frewer LJ. Food fraud and the perceived integrity of European food imports into China. PLoS One 2018; 13:e0195817. [PMID: 29791434 PMCID: PMC5965827 DOI: 10.1371/journal.pone.0195817] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2017] [Accepted: 04/01/2018] [Indexed: 11/18/2022] Open
Abstract
Background/Aims Persistent incidents of food fraud in China have resulted in low levels of consumer trust in the authenticity and safety of food that is domestically produced. We examined the relationship between the concerns of Chinese consumers regarding food fraud, and the role that demonstrating authenticity may play in relieving those concerns. Methods A two-stage mixed method design research design was adopted. First, qualitative research (focus groups n = 7) was conducted in three Chinese cities, Beijing, Guangzhou and Chengdu to explore concerns held by Chinese consumers in relation to food fraud. A subsequent quantitative survey (n = 850) tested hypotheses derived from the qualitative research and theoretical literature regarding the relationship between attitudinal measures (including risk perceptions, social trust, and perceptions of benefit associated with demonstrating authenticity), and behavioral intention to purchase “authentic” European products using structural equation modelling. Results Chinese consumers perceive food fraud to be a hazard that represents a food safety risk. Food hazard concern was identified to be geographically influenced. Consumers in Chengdu (tier 2 city) possessed higher levels of hazard concern compared to consumers in Beijing and Guangzhou (tier 1). Structural trust (i.e. trust in actors and the governance of the food supply chain) was not a significant predictor of attitude and intention to purchase authenticated food products. Consumers were shown to have developed ‘risk-relieving’ strategies to compensate for the lack of trust in Chinese food and the dissonance experienced as a consequence of food fraud. Indexical and iconic authenticity cues provided by food manufacturers and regulators were important elements of product evaluations, although geographical differences in their perceived importance were observed. Conclusions Targeted communication of authenticity assurance measures, including; regulations; enforcement; product testing; and actions taken by industry may improve Chinese consumer trust in the domestic food supply chain and reduce consumer concerns regarding the food safety risks associated with food fraud. To support product differentiation and retain prestige, European food manufactures operating within the Chinese market should recognise regional disparities in consumer risk perceptions regarding food fraud and the importance of personal risk mitigation strategies adopted by Chinese consumers to support the identification of authentic products.
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Affiliation(s)
- H. Kendall
- School of Natural and Environmental Sciences, Newcastle University, Newcastle upon-Tyne, United Kingdom
| | - P. Naughton
- Edinburgh Napier University, Business school, Craiglockhart Campus, Edinburgh, United Kingdom
| | - S. Kuznesof
- School of Natural and Environmental Sciences, Newcastle University, Newcastle upon-Tyne, United Kingdom
- * E-mail:
| | - M. Raley
- School of Natural and Environmental Sciences, Newcastle University, Newcastle upon-Tyne, United Kingdom
| | - M. Dean
- School of Biological Sciences, Queen's University Belfast, Medical Biology Centre, Belfast, United Kingdom
| | - B. Clark
- School of Natural and Environmental Sciences, Newcastle University, Newcastle upon-Tyne, United Kingdom
| | - H. Stolz
- Departement für Sozioökonomie / Department of Socioeconomics Forschungsinstitut für biologischen Landbau FiBL / Research Institute of Organic Agriculture FiBL Ackerstrasse 113, Postfach, Frick, Switzerland
| | - R. Home
- Departement für Sozioökonomie / Department of Socioeconomics Forschungsinstitut für biologischen Landbau FiBL / Research Institute of Organic Agriculture FiBL Ackerstrasse 113, Postfach, Frick, Switzerland
| | - M. Y. Chan
- Food and Human Nutrition Group, Newcastle University International Singapore (NUIS), Singapore
| | - Q. Zhong
- China National Research Institute of Food and Fermentation Industries, National Standardization Centre of Food and Fermentation Industry, 24–6 Jiuxianqiaozhonglu,Chaoyang District, Beijing, P.R. China
| | - P. Brereton
- School of Biological Sciences, Queen's University Belfast, Medical Biology Centre, Belfast, United Kingdom
| | - L. J. Frewer
- School of Natural and Environmental Sciences, Newcastle University, Newcastle upon-Tyne, United Kingdom
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Abstract
OBJECTIVE The present study explored associations between food choice motives, attitudes towards and intention to adopt personalised nutrition, to inform communication strategies based on consumer priorities and concerns.Design/SettingA survey was administered online which included the Food Choice Questionnaire (FCQ) and items assessing attitudes towards and intention to adopt personalised nutrition. SUBJECTS Nationally representative samples were recruited in nine EU countries (n 9381). RESULTS Structural equation modelling indicated that the food choice motives 'weight control', 'mood', 'health' and 'ethical concern' had a positive association and 'price' had a negative association with attitude towards, and intention to adopt, personalised nutrition. 'Health' was positively associated and 'familiarity' negatively associated with attitude towards personalised nutrition. The effects of 'weight control', 'ethical concern', 'mood' and 'price' on intention to adopt personalised nutrition were partially mediated by attitude. The effects of 'health' and 'familiarity' were fully mediated by attitude. 'Sensory appeal' was negatively and directly associated with intention to adopt personalised nutrition. CONCLUSIONS Personalised nutrition providers may benefit from taking into consideration the importance of underlying determinants of food choice in potential users, particularly weight control, mood and price, when promoting services and in tailoring communications that are motivationally relevant.
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Al-Thawadi S. Public perception of algal consumption as an alternative food in the Kingdom of Bahrain. ARAB JOURNAL OF BASIC AND APPLIED SCIENCES 2018. [DOI: 10.1080/25765299.2018.1449344] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022] Open
Affiliation(s)
- Salwa Al-Thawadi
- Department of Biology, University of Bahrain, Sukhir, Kingdom of Bahrain
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22
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San-Cristobal R, Navas-Carretero S, Celis-Morales C, Livingstone KM, Stewart-Knox B, Rankin A, Macready AL, Fallaize R, O’Donovan CB, Forster H, Woolhead C, Walsh MC, Lambrinou CP, Moschonis G, Manios Y, Jarosz M, Daniel H, Gibney ER, Brennan L, Gundersen TE, Drevon CA, Gibney M, Marsaux CFM, Saris WHM, Lovegrove JA, Frewer LJ, Mathers JC, Martinez JA. Capturing health and eating status through a nutritional perception screening questionnaire (NPSQ9) in a randomised internet-based personalised nutrition intervention: the Food4Me study. Int J Behav Nutr Phys Act 2017; 14:168. [PMID: 29228998 PMCID: PMC5725967 DOI: 10.1186/s12966-017-0624-6] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2017] [Accepted: 10/23/2017] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND National guidelines emphasize healthy eating to promote wellbeing and prevention of non-communicable diseases. The perceived healthiness of food is determined by many factors affecting food intake. A positive perception of healthy eating has been shown to be associated with greater diet quality. Internet-based methodologies allow contact with large populations. Our present study aims to design and evaluate a short nutritional perception questionnaire, to be used as a screening tool for assessing nutritional status, and to predict an optimal level of personalisation in nutritional advice delivered via the Internet. METHODS Data from all participants who were screened and then enrolled into the Food4Me proof-of-principle study (n = 2369) were used to determine the optimal items for inclusion in a novel screening tool, the Nutritional Perception Screening Questionnaire-9 (NPSQ9). Exploratory and confirmatory factor analyses were performed on anthropometric and biochemical data and on dietary indices acquired from participants who had completed the Food4Me dietary intervention (n = 1153). Baseline and intervention data were analysed using linear regression and linear mixed regression, respectively. RESULTS A final model with 9 NPSQ items was validated against the dietary intervention data. NPSQ9 scores were inversely associated with BMI (β = -0.181, p < 0.001) and waist circumference (Β = -0.155, p < 0.001), and positively associated with total carotenoids (β = 0.198, p < 0.001), omega-3 fatty acid index (β = 0.155, p < 0.001), Healthy Eating Index (HEI) (β = 0.299, p < 0.001) and Mediterranean Diet Score (MDS) (β = 0. 279, p < 0.001). Findings from the longitudinal intervention study showed a greater reduction in BMI and improved dietary indices among participants with lower NPSQ9 scores. CONCLUSIONS Healthy eating perceptions and dietary habits captured by the NPSQ9 score, based on nine questionnaire items, were associated with reduced body weight and improved diet quality. Likewise, participants with a lower score achieved greater health improvements than those with higher scores, in response to personalised advice, suggesting that NPSQ9 may be used for early evaluation of nutritional status and to tailor nutritional advice. TRIAL REGISTRATION NCT01530139 .
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Affiliation(s)
- Rodrigo San-Cristobal
- Centre for Nutrition Research, Department of Nutrition, Food Science and Physiology, University of Navarra, C/Irunlarrea, 1, 31008 Pamplona, Spain
| | - Santiago Navas-Carretero
- Centre for Nutrition Research, Department of Nutrition, Food Science and Physiology, University of Navarra, C/Irunlarrea, 1, 31008 Pamplona, Spain
- CIBER Fisiopatología Obesidad y Nutrición (CIBERobn), Instituto de Salud Carlos III, 28023 Madrid, Spain
| | - Carlos Celis-Morales
- Human Nutrition Research Centre, Institute of Cellular Medicine, Newcastle University, Newcastle Upon Tyne, NE1 7RU UK
| | - Katherine M. Livingstone
- Human Nutrition Research Centre, Institute of Cellular Medicine, Newcastle University, Newcastle Upon Tyne, NE1 7RU UK
| | | | - Audrey Rankin
- Northern Ireland Centre for Food and Health, University of Ulster, Coleraine, BT52 1SA UK
| | - Anna L. Macready
- Hugh Sinclair Unit of Human Nutrition and Institute for Cardiovascular and Metabolic Research, University of Reading, Reading, RG6 6AA UK
| | - Rosalind Fallaize
- Hugh Sinclair Unit of Human Nutrition and Institute for Cardiovascular and Metabolic Research, University of Reading, Reading, RG6 6AA UK
| | - Clare B. O’Donovan
- UCD Institute of Food and Health, UCD School of Agriculture and Food Science, University College Dublin, Belfield, Dublin, 4 Republic of Ireland
| | - Hannah Forster
- UCD Institute of Food and Health, UCD School of Agriculture and Food Science, University College Dublin, Belfield, Dublin, 4 Republic of Ireland
| | - Clara Woolhead
- UCD Institute of Food and Health, UCD School of Agriculture and Food Science, University College Dublin, Belfield, Dublin, 4 Republic of Ireland
| | - Marianne C. Walsh
- UCD Institute of Food and Health, UCD School of Agriculture and Food Science, University College Dublin, Belfield, Dublin, 4 Republic of Ireland
| | - Christina P. Lambrinou
- Department of Nutrition and Dietetics, Harokopio University of Athens, 17671 Athens, Greece
| | - George Moschonis
- Department of Nutrition and Dietetics, Harokopio University of Athens, 17671 Athens, Greece
| | - Yannis Manios
- Department of Nutrition and Dietetics, Harokopio University of Athens, 17671 Athens, Greece
| | - Miroslaw Jarosz
- Institute of Food and Nutrition (IZZ), 02-903 Warsaw, Poland
| | - Hannelore Daniel
- ZIEL Research Center of Nutrition and Food Sciences, Biochemistry Unit, Technische Universität München, 85354 Munich, Germany
| | - Eileen R. Gibney
- UCD Institute of Food and Health, UCD School of Agriculture and Food Science, University College Dublin, Belfield, Dublin, 4 Republic of Ireland
| | - Lorraine Brennan
- UCD Institute of Food and Health, UCD School of Agriculture and Food Science, University College Dublin, Belfield, Dublin, 4 Republic of Ireland
| | | | - Christian A. Drevon
- Department of Nutrition, Institute of Basic Medical Sciences, Faculty of Medicine, University of Oslo, 0317 Oslo, Norway
| | - Mike Gibney
- UCD Institute of Food and Health, UCD School of Agriculture and Food Science, University College Dublin, Belfield, Dublin, 4 Republic of Ireland
| | - Cyril F. M. Marsaux
- Department of Human Biology, NUTRIM School for Nutrition and Translational Research in Metabolism, Maastricht University Medical Centre, Maastricht, 6200 MD The Netherlands
| | - Wim H. M. Saris
- Department of Human Biology, NUTRIM School for Nutrition and Translational Research in Metabolism, Maastricht University Medical Centre, Maastricht, 6200 MD The Netherlands
| | - Julie A. Lovegrove
- Hugh Sinclair Unit of Human Nutrition and Institute for Cardiovascular and Metabolic Research, University of Reading, Reading, RG6 6AA UK
| | - Lynn J. Frewer
- Food and Society Group, Newcastle University, Newcastle Upon Tyne, NE1 7RU UK
| | - John C. Mathers
- Human Nutrition Research Centre, Institute of Cellular Medicine, Newcastle University, Newcastle Upon Tyne, NE1 7RU UK
| | - J. Alfredo Martinez
- Centre for Nutrition Research, Department of Nutrition, Food Science and Physiology, University of Navarra, C/Irunlarrea, 1, 31008 Pamplona, Spain
- CIBER Fisiopatología Obesidad y Nutrición (CIBERobn), Instituto de Salud Carlos III, 28023 Madrid, Spain
- Instituto de Investigaciones Sanitarias de Navarra (IDisNa), 31008 Pamplona, Spain
- Instituto Madrileño de Estudios Avanzados (IMDEA) Alimentacion, Madrid, Spain
| | - on behalf of the Food4Me Study
- Centre for Nutrition Research, Department of Nutrition, Food Science and Physiology, University of Navarra, C/Irunlarrea, 1, 31008 Pamplona, Spain
- CIBER Fisiopatología Obesidad y Nutrición (CIBERobn), Instituto de Salud Carlos III, 28023 Madrid, Spain
- Human Nutrition Research Centre, Institute of Cellular Medicine, Newcastle University, Newcastle Upon Tyne, NE1 7RU UK
- School of Psychology, University of Bradford, West Yorkshire, BD71DP UK
- Northern Ireland Centre for Food and Health, University of Ulster, Coleraine, BT52 1SA UK
- Hugh Sinclair Unit of Human Nutrition and Institute for Cardiovascular and Metabolic Research, University of Reading, Reading, RG6 6AA UK
- UCD Institute of Food and Health, UCD School of Agriculture and Food Science, University College Dublin, Belfield, Dublin, 4 Republic of Ireland
- Department of Nutrition and Dietetics, Harokopio University of Athens, 17671 Athens, Greece
- Institute of Food and Nutrition (IZZ), 02-903 Warsaw, Poland
- ZIEL Research Center of Nutrition and Food Sciences, Biochemistry Unit, Technische Universität München, 85354 Munich, Germany
- Vitas Ltd., Oslo Science Park, Gaustadalléen 21, 0349 Oslo, Norway
- Department of Nutrition, Institute of Basic Medical Sciences, Faculty of Medicine, University of Oslo, 0317 Oslo, Norway
- Department of Human Biology, NUTRIM School for Nutrition and Translational Research in Metabolism, Maastricht University Medical Centre, Maastricht, 6200 MD The Netherlands
- Food and Society Group, Newcastle University, Newcastle Upon Tyne, NE1 7RU UK
- Instituto de Investigaciones Sanitarias de Navarra (IDisNa), 31008 Pamplona, Spain
- Instituto Madrileño de Estudios Avanzados (IMDEA) Alimentacion, Madrid, Spain
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Horne J, Madill J, Gilliland J. Incorporating the 'Theory of Planned Behavior' into personalized healthcare behavior change research: a call to action. Per Med 2017; 14:521-529. [PMID: 29749859 DOI: 10.2217/pme-2017-0038] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
The 'Theory of Planned Behavior' (TPB) has been tested and validated in the scientific literature across multiple disciplines and is arguably the most widely accepted theory among behavior change academics. Despite this widespread acceptability, the TPB has yet to be incorporated into personalized healthcare behavior change research. Several prominent personalized healthcare researchers suggest that personalizing healthcare recommendations have a positive impact on changes in lifestyle habits. However, research in this area has demonstrated conflicting findings. We provide a scientific and theoretical basis to support a proposed expansion of the TPB to include personalization, and call to action-personalized healthcare behavior change researchers to test this expansion. Specific recommendations for study design are included.
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Affiliation(s)
- Justine Horne
- Faculty of Health Sciences, The University of Western Ontario, London, Canada.,Division of Food & Nutritional Sciences, Brescia University College, The University of Western Ontario, London, Canada
| | - Janet Madill
- Division of Food & Nutritional Sciences, Brescia University College, The University of Western Ontario, London, Canada
| | - Jason Gilliland
- Department of Geography, The University of Western Ontario, London, Canada.,Department of Paediatrics, The University of Western Ontario, London, Canada.,School of Health Studies, The University of Western Ontario, London, Canada.,Department of Epidemiology & Biostatistics, The University of Western Ontario, London, Canada
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Berezowska A, Fischer ARH, van Trijp HCM. The interplay between regulatory focus and temporal distance in the health context. Br J Health Psychol 2017; 23:22-37. [DOI: 10.1111/bjhp.12272] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2016] [Revised: 07/22/2017] [Indexed: 12/01/2022]
Affiliation(s)
- Aleksandra Berezowska
- Marketing and Consumer Behaviour Group; Department of Social Sciences; Wageningen University and Research Centre; The Netherlands
| | - Arnout R. H. Fischer
- Marketing and Consumer Behaviour Group; Department of Social Sciences; Wageningen University and Research Centre; The Netherlands
| | - Hans C. M. van Trijp
- Marketing and Consumer Behaviour Group; Department of Social Sciences; Wageningen University and Research Centre; The Netherlands
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Berezowska A, Fischer AR, Trijp HCV. The moderating effect of motivation on health-related decision-making. Psychol Health 2017; 32:665-685. [DOI: 10.1080/08870446.2017.1293055] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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26
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Factors determining the integration of nutritional genomics into clinical practice by registered dietitians. Trends Food Sci Technol 2017. [DOI: 10.1016/j.tifs.2016.11.005] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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Self-reported perception of healthy eating behaviour through on-line tool is associated with healthy weight status and food intake. Proc Nutr Soc 2017. [DOI: 10.1017/s0029665117003913] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Fischer ARH, Berezowska A, van der Lans IA, Ronteltap A, Rankin A, Kuznesof S, Poínhos R, Stewart-Knox B, Frewer LJ. Willingness to pay for personalised nutrition across Europe. Eur J Public Health 2016; 26:640-4. [PMID: 27069004 DOI: 10.1093/eurpub/ckw045] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
BACKGROUND Personalised nutrition (PN) may promote public health. PN involves dietary advice based on individual characteristics of end users and can for example be based on lifestyle, blood and/or DNA profiling. Currently, PN is not refunded by most health insurance or health care plans. Improved public health is contingent on individual consumers being willing to pay for the service. METHODS A survey with a representative sample from the general population was conducted in eight European countries (N = 8233). Participants reported their willingness to pay (WTP) for PN based on lifestyle information, lifestyle and blood information, and lifestyle and DNA information. WTP was elicited by contingent valuation with the price of a standard, non-PN advice used as reference. RESULTS About 30% of participants reported being willing to pay more for PN than for non-PN advice. They were on average prepared to pay about 150% of the reference price of a standard, non-personalised advice, with some differences related to socio-demographic factors. CONCLUSION There is a potential market for PN compared to non-PN advice, particularly among men on higher incomes. These findings raise questions to what extent personalized nutrition can be left to the market or should be incorporated into public health programs.
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Affiliation(s)
- Arnout R H Fischer
- 1 Wageningen University, Marketing and Consumer Behaviour Group, The Netherlands
| | | | - Ivo A van der Lans
- 1 Wageningen University, Marketing and Consumer Behaviour Group, The Netherlands
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Rankin A, Kuznesof S, Frewer LJ, Orr K, Davison J, de Almeida MD, Stewart-Knox B. Public perceptions of personalised nutrition through the lens of Social Cognitive Theory. J Health Psychol 2016; 22:1233-1242. [PMID: 26837686 DOI: 10.1177/1359105315624750] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Social Cognitive Theory has been used to explain findings derived from focus group discussions ( N = 4) held in the United Kingdom with the aim of informing best practice in personalised nutrition. Positive expectancies included weight loss and negative expectancies surrounded on-line security. Monitoring and feedback were crucial to goal setting and progress. Coaching by the service provider, family and friends was deemed important for self-efficacy. Paying for personalised nutrition symbolised commitment to behaviour change. The social context of eating, however, was perceived a problem and should be considered when designing personalised diets. Social Cognitive Theory could provide an effective framework through which to deliver personalised nutrition.
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30
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Giles EL, Kuznesof S, Clark B, Hubbard C, Frewer LJ. Consumer acceptance of and willingness to pay for food nanotechnology: a systematic review. JOURNAL OF NANOPARTICLE RESEARCH : AN INTERDISCIPLINARY FORUM FOR NANOSCALE SCIENCE AND TECHNOLOGY 2015; 17:467. [PMID: 26660049 PMCID: PMC4666279 DOI: 10.1007/s11051-015-3270-4] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2015] [Accepted: 11/19/2015] [Indexed: 06/01/2023]
Abstract
Consumer's attitudes to, and acceptance of, emerging technologies and their applications, are important determinants of their successful implementation and commercialisation. Understanding the range of socio-psychological, cultural and affective factors which may influence consumer responses to applications of nanotechnology will help "fine-tune" the development of consumer products in line with their expectations and preferences. This is particularly true of applications in the food area, where consumer concerns about technologies applied to food production may be elevated. This research applied systematic review methodology to synthesise current knowledge regarding societal acceptance or rejection of nanotechnology applied to agri-food production. The objective was to aggregate knowledge derived from different research areas to gain an overall picture of consumer responses to nanotechnology applied to food production. Relevant electronic databases of peer-reviewed literature were searched from the earliest date available, for peer-reviewed papers which reported primary empirical data on consumer and expert acceptance of agri-food nanotechnology, using a formal systematic review protocol. Inclusion criteria for papers to be included in the review were: empirical peer-reviewed papers written in English; a population sample of adults aged 18 years and over used in the research; a research focus on consumer and expert acceptance of agri-food nanotechnology; and research on attitudes towards, and willingness to pay for, different applications of agri-food nanotechnology. Two researchers independently appraised the papers using NVivo 10 QSR software. Studies examining consumer and expert acceptance were thematically analysed, and key information was collated. The results were synthesised in order to identify trends in information relevant to consumer acceptance of nanotechnology applied to food production. Eight key themes were identified from the 32 papers which were extracted from the literature. These themes were applied to understand the determinants of consumer acceptance of agri-food nanotechnology. Nanotechnology is more likely to be accepted by consumers when applied to development of novel packaging with distinct benefits rather than when integrated directly into agri-food products. Trust and confidence in agri-food nanotechnology and its governance need to be fostered through transparent regulation and development of societally beneficial impacts to increase consumer acceptance.
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Affiliation(s)
- Emma L. Giles
- />Health and Social Care Institute, Teesside University, Constantine Building, Middlesbrough, North Yorkshire TS1 3BA UK
| | - Sharron Kuznesof
- />School of Agriculture, Food and Rural Development, Newcastle University, Agriculture Building, Newcastle upon Tyne, Tyne and Wear NE1 7RU UK
| | - Beth Clark
- />School of Agriculture, Food and Rural Development, Newcastle University, Agriculture Building, Newcastle upon Tyne, Tyne and Wear NE1 7RU UK
| | - Carmen Hubbard
- />School of Agriculture, Food and Rural Development, Newcastle University, Agriculture Building, Newcastle upon Tyne, Tyne and Wear NE1 7RU UK
| | - Lynn J. Frewer
- />School of Agriculture, Food and Rural Development, Newcastle University, Agriculture Building, Newcastle upon Tyne, Tyne and Wear NE1 7RU UK
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Markovina J, Stewart-Knox BJ, Rankin A, Gibney M, de Almeida MDV, Fischer A, Kuznesof SA, Poínhos R, Panzone L, Frewer LJ. Food4Me study: Validity and reliability of Food Choice Questionnaire in 9 European countries. Food Qual Prefer 2015. [DOI: 10.1016/j.foodqual.2015.05.002] [Citation(s) in RCA: 87] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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32
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Ryan NM, O'Donovan CB, Forster H, Woolhead C, Walsh MC. New tools for personalised nutrition: The Food4Me project. NUTR BULL 2015. [DOI: 10.1111/nbu.12143] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- N. M. Ryan
- UCD Institute of Food and Health; University College Dublin; Republic of Ireland
| | - C. B. O'Donovan
- UCD Institute of Food and Health; University College Dublin; Republic of Ireland
| | - H. Forster
- UCD Institute of Food and Health; University College Dublin; Republic of Ireland
| | - C. Woolhead
- UCD Institute of Food and Health; University College Dublin; Republic of Ireland
| | - M. C. Walsh
- UCD Institute of Food and Health; University College Dublin; Republic of Ireland
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