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Yu J, Xia J, Xu D, Wang Y, Yin S, Lu Y, Xia H, Wang S, Sun G. Effect of skipping breakfast on cardiovascular risk factors: a grade-assessed systematic review and meta-analysis of randomized controlled trials and prospective cohort studies. Front Endocrinol (Lausanne) 2023; 14:1256899. [PMID: 38089630 PMCID: PMC10715426 DOI: 10.3389/fendo.2023.1256899] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Accepted: 10/31/2023] [Indexed: 12/18/2023] Open
Abstract
Skipping breakfast is one of the most prevalent irregular eating habits. Several pieces of evidence have reported the association between breakfast omission and a higher risk of cardiovascular diseases. Numerous publications have focused on the impact of skipping breakfast on various cardiovascular risk factors. Therefore, the current systematic review and meta-analysis aimed to assess this impact, especially with regard to anthropometric measurements, serum lipid profiles, blood pressure, and glycemic control indicators. A comprehensive search was performed in PubMed, Web of Science, Embase, Scopus, and the Cochrane Central Register of Controlled Trials up to 1 April 2023. A total of 11 eligible trials were identified to evaluate the combined effects of skipping breakfast. Final integrated results demonstrated that breakfast omission significantly decreased the body weight (mean difference = -0.66, 95% CI: -1.09 to -0.24, p = 0.002, I2 = 0.0) and increased the level of serum low-density lipoprotein cholesterol (LDL-C) (mean difference = 9.89, 95% CI: 5.14 to 14.63, p = 0.000, I2 = 17.3). Subgroup analysis also revealed potential factors that may affect the outcomes, for example, the physiological condition of participants, duration, gender, and type of breakfast. In conclusion, skipping breakfast may reduce body weight while increasing the level of serum LDL-C at the same time. In view of the limited trials, further studies are needed to expound the role of breakfast omission in cardiovascular diseases.
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Affiliation(s)
- Junhui Yu
- Key Laboratory of Environmental Medicine and Engineering of Ministry of Education, School of Public Health, Southeast University, Nanjing, China
- Department of Nutrition and Food Hygiene, School of Public Health, Southeast University, Nanjing, China
| | - Jiayue Xia
- Key Laboratory of Environmental Medicine and Engineering of Ministry of Education, School of Public Health, Southeast University, Nanjing, China
- Department of Nutrition and Food Hygiene, School of Public Health, Southeast University, Nanjing, China
| | - Dengfeng Xu
- Key Laboratory of Environmental Medicine and Engineering of Ministry of Education, School of Public Health, Southeast University, Nanjing, China
- Department of Nutrition and Food Hygiene, School of Public Health, Southeast University, Nanjing, China
| | - Yuanyuan Wang
- Key Laboratory of Environmental Medicine and Engineering of Ministry of Education, School of Public Health, Southeast University, Nanjing, China
- Department of Nutrition and Food Hygiene, School of Public Health, Southeast University, Nanjing, China
| | - Shiyu Yin
- Key Laboratory of Environmental Medicine and Engineering of Ministry of Education, School of Public Health, Southeast University, Nanjing, China
- Department of Nutrition and Food Hygiene, School of Public Health, Southeast University, Nanjing, China
| | - Yifei Lu
- Key Laboratory of Environmental Medicine and Engineering of Ministry of Education, School of Public Health, Southeast University, Nanjing, China
- Department of Nutrition and Food Hygiene, School of Public Health, Southeast University, Nanjing, China
| | - Hui Xia
- Key Laboratory of Environmental Medicine and Engineering of Ministry of Education, School of Public Health, Southeast University, Nanjing, China
- Department of Nutrition and Food Hygiene, School of Public Health, Southeast University, Nanjing, China
| | - Shaokang Wang
- Key Laboratory of Environmental Medicine and Engineering of Ministry of Education, School of Public Health, Southeast University, Nanjing, China
- Department of Nutrition and Food Hygiene, School of Public Health, Southeast University, Nanjing, China
| | - Guiju Sun
- Key Laboratory of Environmental Medicine and Engineering of Ministry of Education, School of Public Health, Southeast University, Nanjing, China
- Department of Nutrition and Food Hygiene, School of Public Health, Southeast University, Nanjing, China
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Jeans MR, Landry MJ, Vandyousefi S, Hudson EA, Burgermaster M, Bray MS, Chandra J, Davis JN. Effects of a School-Based Gardening, Cooking, and Nutrition Cluster Randomized Controlled Trial on Unprocessed and Ultra-Processed Food Consumption. J Nutr 2023; 153:2073-2084. [PMID: 37116658 PMCID: PMC10375509 DOI: 10.1016/j.tjnut.2023.04.013] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Revised: 04/11/2023] [Accepted: 04/13/2023] [Indexed: 04/30/2023] Open
Abstract
BACKGROUND School-based gardening and nutrition education interventions report improvements in dietary intake, notably through fruit and vegetables. However, gardening, cooking, and nutrition randomized controlled trials are limited in evaluating dietary quality, and none have examined processed food consumption to date. OBJECTIVES The study examined the effects of Texas Sprouts (TX Sprouts), a gardening, cooking, and nutrition education intervention, compared with control on unprocessed and ultra-processed food (UPF) consumption in predominately low-income Hispanic children. METHODS TX Sprouts was a school-based cluster randomized controlled trial that consisted of 16 elementary schools randomly assigned to either the TX Sprouts intervention (n = 8 schools) or control (delayed intervention; n = 8 schools) over 3 y (2016-2019). TX Sprouts schools received an outdoor teaching garden and 18 1-h lessons taught by trained educators throughout the school year. Dietary intake data via 2 24-h dietary recalls were collected on a random subsample (n = 468) at baseline and postintervention. All foods and beverages were categorized using the NOVA food classification system (e.g., unprocessed, processed, ultra-processed). Generalized linear mixed effects modeling tested changes in percent calories and grams of NOVA groups between the intervention and control estimates with schools as random clusters. RESULTS Of the sample, 63% participated in the free and reduced-price lunch program, and 57% were Hispanic, followed by non-Hispanic White (21%) and non-Hispanic Black (12%). The intervention, compared to the control, resulted in an increase in consumption of unprocessed foods (2.3% compared with -1.8% g; P < 0.01) and a decrease in UPF (-2.4% compared with 1.4% g; P = 0.04). In addition, Hispanic children in the intervention group had an increase in unprocessed food consumption and a decrease in UPF consumption compared to non-Hispanic children (-3.4% compared with 1.5% g; P < 0.05). CONCLUSIONS Study results suggest that school-based gardening, cooking, and nutrition education interventions can improve dietary intake, specifically increasing unprocessed food consumption and decreasing UPF consumption. This trial was registered at clinicaltrials.gov as NCT02668744.
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Affiliation(s)
- Matthew R Jeans
- Department of Nutritional Sciences, College of Natural Sciences, the University of Texas at Austin, Austin, TX, United States
| | - Matthew J Landry
- Stanford Prevention Research Center, Stanford University School of Medicine, Palo Alto, CA, United States
| | - Sarvenaz Vandyousefi
- Department of Medicine, New York University Grossman Medical Center, New York, NY, United States
| | - Erin A Hudson
- Department of Nutritional Sciences, College of Natural Sciences, the University of Texas at Austin, Austin, TX, United States
| | - Marissa Burgermaster
- Department of Nutritional Sciences, College of Natural Sciences, the University of Texas at Austin, Austin, TX, United States
| | - Molly S Bray
- Department of Nutritional Sciences, College of Natural Sciences, the University of Texas at Austin, Austin, TX, United States
| | - Joya Chandra
- Division of Pediatrics, Department of Pediatrics-Research, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Jaimie N Davis
- Department of Nutritional Sciences, College of Natural Sciences, the University of Texas at Austin, Austin, TX, United States.
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Dalrymple KV, Vogel C, Godfrey KM, Baird J, Hanson MA, Cooper C, Inskip HM, Crozier SR. Evaluation and interpretation of latent class modelling strategies to characterise dietary trajectories across early life: a longitudinal study from the Southampton Women's Survey. Br J Nutr 2023; 129:1945-1954. [PMID: 35968701 PMCID: PMC10167664 DOI: 10.1017/s000711452200263x] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Revised: 07/07/2022] [Accepted: 08/05/2022] [Indexed: 11/05/2022]
Abstract
There is increasing interest in modelling longitudinal dietary data and classifying individuals into subgroups (latent classes) who follow similar trajectories over time. These trajectories could identify population groups and time points amenable to dietary interventions. This paper aimed to provide a comparison and overview of two latent class methods: group-based trajectory modelling (GBTM) and growth mixture modelling (GMM). Data from 2963 mother-child dyads from the longitudinal Southampton Women's Survey were analysed. Continuous diet quality indices (DQI) were derived using principal component analysis from interviewer-administered FFQ collected in mothers pre-pregnancy, at 11- and 34-week gestation, and in offspring at 6 and 12 months and 3, 6-7 and 8-9 years. A forward modelling approach from 1 to 6 classes was used to identify the optimal number of DQI latent classes. Models were assessed using the Akaike and Bayesian information criteria, probability of class assignment, ratio of the odds of correct classification, group membership and entropy. Both methods suggested that five classes were optimal, with a strong correlation (Spearman's = 0·98) between class assignment for the two methods. The dietary trajectories were categorised as stable with horizontal lines and were defined as poor (GMM = 4 % and GBTM = 5 %), poor-medium (23 %, 23 %), medium (39 %, 39 %), medium-better (27 %, 28 %) and best (7 %, 6 %). Both GBTM and GMM are suitable for identifying dietary trajectories. GBTM is recommended as it is computationally less intensive, but results could be confirmed using GMM. The stability of the diet quality trajectories from pre-pregnancy underlines the importance of promotion of dietary improvements from preconception onwards.
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Affiliation(s)
- Kathryn V. Dalrymple
- School of Life Course Sciences, King’s College London, London, UK
- MRC Lifecourse Epidemiology Centre, University of Southampton, Southampton General Hospital, Southampton, UK
| | - Christina Vogel
- MRC Lifecourse Epidemiology Centre, University of Southampton, Southampton General Hospital, Southampton, UK
- NIHR Southampton Biomedical Research Centre, University of Southampton and University Hospital Southampton NHS Foundation Trust, Southampton, UK
- NIHR Applied Research Collaboration Wessex, Southampton Science Park, Innovation Centre, 2 Venture Road, Chilworth, Southampton, SO16 7NP, UK
| | - Keith M. Godfrey
- MRC Lifecourse Epidemiology Centre, University of Southampton, Southampton General Hospital, Southampton, UK
- NIHR Southampton Biomedical Research Centre, University of Southampton and University Hospital Southampton NHS Foundation Trust, Southampton, UK
| | - Janis Baird
- MRC Lifecourse Epidemiology Centre, University of Southampton, Southampton General Hospital, Southampton, UK
- NIHR Southampton Biomedical Research Centre, University of Southampton and University Hospital Southampton NHS Foundation Trust, Southampton, UK
- NIHR Applied Research Collaboration Wessex, Southampton Science Park, Innovation Centre, 2 Venture Road, Chilworth, Southampton, SO16 7NP, UK
| | - Mark A. Hanson
- NIHR Southampton Biomedical Research Centre, University of Southampton and University Hospital Southampton NHS Foundation Trust, Southampton, UK
- Institute of Developmental Sciences, Faculty of Medicine, University of Southampton, Southampton, UK
| | - Cyrus Cooper
- MRC Lifecourse Epidemiology Centre, University of Southampton, Southampton General Hospital, Southampton, UK
- NIHR Southampton Biomedical Research Centre, University of Southampton and University Hospital Southampton NHS Foundation Trust, Southampton, UK
- NIHR Oxford Biomedical Research Centre, University of Oxford, Oxford, UK
| | - Hazel M. Inskip
- MRC Lifecourse Epidemiology Centre, University of Southampton, Southampton General Hospital, Southampton, UK
- NIHR Southampton Biomedical Research Centre, University of Southampton and University Hospital Southampton NHS Foundation Trust, Southampton, UK
| | - Sarah R. Crozier
- MRC Lifecourse Epidemiology Centre, University of Southampton, Southampton General Hospital, Southampton, UK
- NIHR Applied Research Collaboration Wessex, Southampton Science Park, Innovation Centre, 2 Venture Road, Chilworth, Southampton, SO16 7NP, UK
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Dalrymple KV, Vogel C, Godfrey KM, Baird J, Harvey NC, Hanson MA, Cooper C, Inskip HM, Crozier SR. Longitudinal dietary trajectories from preconception to mid-childhood in women and children in the Southampton Women's Survey and their relation to offspring adiposity: a group-based trajectory modelling approach. Int J Obes (Lond) 2022; 46:758-766. [PMID: 34916617 PMCID: PMC8960403 DOI: 10.1038/s41366-021-01047-2] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Revised: 11/23/2021] [Accepted: 11/26/2021] [Indexed: 11/08/2022]
Abstract
BACKGROUND Rates of childhood obesity are increasing globally, with poor dietary quality an important contributory factor. Evaluation of longitudinal diet quality across early life could identify timepoints and subgroups for nutritional interventions as part of effective public health strategies. OBJECTIVE This research aimed to: (1) define latent classes of mother-offspring diet quality trajectories from pre-pregnancy to child age 8-9 years, (2) identify early life factors associated with these trajectories, and (3) describe the association between the trajectories and childhood adiposity outcomes. DESIGN Dietary data from 2963 UK Southampton Women's Survey mother-offspring dyads were analysed using group-based trajectory modelling of a diet quality index (DQI). Maternal diet was assessed pre-pregnancy and at 11- and 34-weeks' gestation, and offspring diet at ages 6 and 12 months, 3, 6-7- and 8-9-years using interviewer-administered food frequency questionnaires. At each timepoint, a standardised DQI was derived using principal component analysis. Adiposity age 8-9 years was assessed using dual-energy X-ray absorptiometry (DXA) and BMI z-scores. RESULTS A five-trajectory group model was identified as optimal. The diet quality trajectories were characterised as stable, horizontal lines and were categorised as poor (n = 142), poor-medium (n = 667), medium (n = 1146), medium-better (n = 818) and best (n = 163). A poorer dietary trajectory was associated with higher maternal pre-pregnancy BMI, smoking, multiparity, lower maternal age and lower educational attainment. Using linear regression adjusted for confounders, a 1-category decrease in the dietary trajectory was associated with higher DXA percentage body fat (0.08 SD (95% confidence interval 0.01, 0.15) and BMI z-score (0.08 SD (0.00, 0.16) in the 1216 children followed up at age 8-9 years. CONCLUSION Mother-offspring dietary trajectories are stable across early life, with poorer diet quality associated with maternal socio-demographic and other factors and childhood adiposity. The preconception period may be an important window to promote positive maternal dietary changes in order to improve childhood outcomes.
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Affiliation(s)
- Kathryn V Dalrymple
- MRC Lifecourse Epidemiology Centre, University of Southampton, Southampton General Hospital, Southampton, UK
- Department of Women and Children's Health, School of Life Course Sciences, King's College London, London, UK
| | - Christina Vogel
- MRC Lifecourse Epidemiology Centre, University of Southampton, Southampton General Hospital, Southampton, UK
- NIHR Southampton Biomedical Research Centre, University of Southampton and University Hospital Southampton NHS Foundation Trust, Southampton, UK
- NIHR Applied Research Collaboration Wessex, Southampton Science Park, Innovation Centre, 2 Venture Road, Chilworth, Southampton, SO16 7NP, UK
| | - Keith M Godfrey
- MRC Lifecourse Epidemiology Centre, University of Southampton, Southampton General Hospital, Southampton, UK
- NIHR Southampton Biomedical Research Centre, University of Southampton and University Hospital Southampton NHS Foundation Trust, Southampton, UK
| | - Janis Baird
- MRC Lifecourse Epidemiology Centre, University of Southampton, Southampton General Hospital, Southampton, UK
- NIHR Southampton Biomedical Research Centre, University of Southampton and University Hospital Southampton NHS Foundation Trust, Southampton, UK
- NIHR Applied Research Collaboration Wessex, Southampton Science Park, Innovation Centre, 2 Venture Road, Chilworth, Southampton, SO16 7NP, UK
| | - Nicholas C Harvey
- MRC Lifecourse Epidemiology Centre, University of Southampton, Southampton General Hospital, Southampton, UK
- NIHR Southampton Biomedical Research Centre, University of Southampton and University Hospital Southampton NHS Foundation Trust, Southampton, UK
| | - Mark A Hanson
- NIHR Southampton Biomedical Research Centre, University of Southampton and University Hospital Southampton NHS Foundation Trust, Southampton, UK
- Institute of Developmental Sciences, Faculty of Medicine, University of Southampton, Southampton, UK
| | - Cyrus Cooper
- MRC Lifecourse Epidemiology Centre, University of Southampton, Southampton General Hospital, Southampton, UK
- NIHR Southampton Biomedical Research Centre, University of Southampton and University Hospital Southampton NHS Foundation Trust, Southampton, UK
- NIHR Oxford Biomedical Research Centre, University of Oxford, Oxford, UK
| | - Hazel M Inskip
- MRC Lifecourse Epidemiology Centre, University of Southampton, Southampton General Hospital, Southampton, UK
- NIHR Southampton Biomedical Research Centre, University of Southampton and University Hospital Southampton NHS Foundation Trust, Southampton, UK
| | - Sarah R Crozier
- MRC Lifecourse Epidemiology Centre, University of Southampton, Southampton General Hospital, Southampton, UK.
- NIHR Applied Research Collaboration Wessex, Southampton Science Park, Innovation Centre, 2 Venture Road, Chilworth, Southampton, SO16 7NP, UK.
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Back IDC, Barros NFD, Caramelli B. Lifestyle, inadequate environments in childhood and their effects on adult cardiovascular health. J Pediatr (Rio J) 2022; 98 Suppl 1:S19-S26. [PMID: 34801487 PMCID: PMC9510931 DOI: 10.1016/j.jped.2021.09.005] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Accepted: 09/16/2021] [Indexed: 01/08/2023] Open
Abstract
OBJECTIVES To discuss the associations between habits and environment in childhood and cardiovascular effects on adults. SOURCE OF DATA Search in PubMed, Scielo and Science databases, cohort or case-control studies, and systematic or scope-based reviewson the causal relationship among exposures in the pediatric age group and cardiovascular effects in adults. SYNTHESIS OF DATA The authors identified 41 eligible articles, which demonstrated an impact on cardiovascular health (characterized as surrogate events - structural or functional vascular alterations or left ventricular dysfunction - or clinical events - myocardial infarction, stroke or cardiovascular death) with environmental aspects (intrauterine or economically poor environment, violence, reduced life expectancy and serious infections) and habits (nutrition, physical activity and tobacco exposure). In addition to the direct and independent associations between exposures and outcomes, several traditional cardiovascular risk factors (CVRF) or family histories are also intermediate pathophysiological pathways in the described phenomena. CONCLUSIONS There are direct relationships between lifestyle and inadequate environments in childhood and cardiovascular effects, although the observed associations showed divergences in terms of results and interpretation. In spite of these, it is recommended to encourage healthy lifestyles and protection against childhood adverse exposures, as habit formation occurs at this age, and its relationship with CVRF since childhood has already been well established. On the other hand, the format and intensity of the stimulus must respect the social, cultural and psychological aspects of each population, aiming to obtain the best and most lasting result without generating harmful consequences for the individuals.
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Affiliation(s)
| | - Nelson Filice de Barros
- Universidade Estadual de Campinas, Faculdade de Ciências Médicas, Departamento de Saúde Coletiva, Campinas, SP, Brazil
| | - Bruno Caramelli
- Universidade de São Paulo, Faculdade de Medicina, Instituto do Coração, Unidade Interdisciplinar de Medicina, São Paulo, SP, Brazil
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Leeming ER, Mompeo O, Turk P, Bowyer RCE, Louca P, Johnson AJ, Spector TD, Le Roy C, Gibson R. Characterisation, procedures and heritability of acute dietary intake in the Twins UK cohort: an observational study. Nutr J 2022; 21:13. [PMID: 35220977 PMCID: PMC8883626 DOI: 10.1186/s12937-022-00763-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Accepted: 02/08/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Estimated food records (EFR) are a common dietary assessment method. This investigation aimed to; (1) define the reporting quality of the EFR, (2) characterise acute dietary intake and eating behaviours, (3) describe diet heritability. METHODS A total of 1974 one-day EFR were collected from 1858 participants in the TwinsUK cohort between 2012 and 2017. EFR were assessed using a six-point scoring system to determine reporting quality. The frequency and co-occurrence of food items was examined using word clouds and co-occurrence networks. The impact of eating behaviours on weight, BMI and nutrient intake were explored using mixed-effect linear regression models. Finally, diet heritability was estimated using ACE modelling. RESULTS We observed that 75% of EFR are of acceptable reporting quality (score > 5). Black tea and semi-skimmed milk were the most consumed items, on an individual basis (respectively 8.27, 6.25%) and paired (0.21%) as co-occurring items. Breakfast consumption had a significantly (p = 5.99 × 10- 7) greater impact on energy (kcal) (mean 1874.67 (±SD 532.42)) than skipping breakfast (1700.45 (±SD 620.98)), however only length of eating window was significantly associated with body weight (kg) (effect size 0.21 (±SD 0.10), p = 0.05) and BMI (effect size 0.08 (±SD 0.04), p = 0.04) after adjustment for relevant covariates. Lastly, we reported that both length of eating window (h2 = 33%, CI 0.24; 0.41), and breakfast consumption (h2 = 11%, CI 0.02; 0.21) were weakly heritable. CONCLUSIONS EFR describing acute dietary intake allow for eating behaviour characterisation and can supplement habitual diet intake assessments. Novel findings of heritability warrant further investigation.
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Affiliation(s)
- Emily R Leeming
- Department of Twin Research, King's College London, London, SE1 7EH, UK
| | - Olatz Mompeo
- Department of Twin Research, King's College London, London, SE1 7EH, UK
| | | | - Ruth C E Bowyer
- Department of Twin Research, King's College London, London, SE1 7EH, UK
| | - Panayiotis Louca
- Department of Twin Research, King's College London, London, SE1 7EH, UK
| | - Abigail J Johnson
- Division of Epidemiology and Community Health, University of Minnesota, Minneapolis, MN, 55454, USA
| | - Tim D Spector
- Department of Twin Research, King's College London, London, SE1 7EH, UK
| | - Caroline Le Roy
- Department of Twin Research, King's College London, London, SE1 7EH, UK.
| | - Rachel Gibson
- Department of Nutritional Sciences, King's College London, London, SE1 9NH, UK.
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Howse E, Hankey C, Bauman A, Freeman B. Are young adults' discussions of public health nutrition policies associated with common food industry discourses? A qualitative pilot study. Aust N Z J Public Health 2021; 45:171-180. [PMID: 33617122 DOI: 10.1111/1753-6405.13074] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Revised: 10/01/2020] [Accepted: 12/01/2020] [Indexed: 11/26/2022] Open
Abstract
OBJECTIVE Unhealthy diets are a key risk factor for chronic disease, with young adults (18-30 years old) in high-income countries like Australia and the UK particularly at risk. Improved public health nutrition policies can help address unhealthy diets in the population, but many of the more regulatory policies are opposed by food industry groups. This research explores how young adults in Australia and the UK discuss a range of topical public health nutrition policies and analyses whether and how their views may be associated with food industry discourses. METHODS Eight focus groups were held in Sydney, Australia, and Glasgow, UK, with a total of thirty young adults participating. A deliberative-style method was used in the focus groups to generate discussion about six public health nutrition policies, such as taxation of sugar-sweetened beverages and restrictions on advertising of less-healthy foods. Discourse analysis was used to examine participants' discussions. RESULTS Twenty discourse codes were developed iteratively from the focus group data. These were thematically linked with nine food industry discourses found in the peer-reviewed literature, including industry self-regulation, personal responsibility, corporate social responsibility and challenging nutrition science. CONCLUSIONS These results demonstrate there is an association between common food industry discourses and some young adults' views about public health nutrition policies. Implications for public health: Identifying, engaging with and responding to common industry discourses is a priority in order to build greater public support and acceptability of policies that will improve diet and prevent chronic disease.
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Affiliation(s)
- Eloise Howse
- The University of Sydney, Faculty of Medicine and Health, Sydney School of Public Health, Prevention Research Collaboration, New South Wales.,The Australian Prevention Partnership Centre, The Sax Institute, New South Wales
| | - Catherine Hankey
- University of Glasgow, School of Medicine, Dentistry and Nursing, United Kingdom
| | - Adrian Bauman
- The University of Sydney, Faculty of Medicine and Health, Sydney School of Public Health, Prevention Research Collaboration, New South Wales.,The Australian Prevention Partnership Centre, The Sax Institute, New South Wales
| | - Becky Freeman
- The University of Sydney, Faculty of Medicine and Health, Sydney School of Public Health, Prevention Research Collaboration, New South Wales
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Evaluation and interpretation of latent class modelling strategies to characterise dietary trajectories across early life: a longitudinal study from the Southampton women's survey. Proc Nutr Soc 2021. [DOI: 10.1017/s0029665121003360] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Reynolds AN, Diep Pham HT, Montez J, Mann J. Dietary fibre intake in childhood or adolescence and subsequent health outcomes: A systematic review of prospective observational studies. Diabetes Obes Metab 2020; 22:2460-2467. [PMID: 32844565 PMCID: PMC7756362 DOI: 10.1111/dom.14176] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Revised: 08/07/2020] [Accepted: 08/23/2020] [Indexed: 12/14/2022]
Abstract
AIM To determine whether higher fibre intakes during childhood or adolescence effect a broad range of intermediate markers of cardiometabolic risk or other health related issues. MATERIALS AND METHODS We used online searches up to January 2020 and manual searches to identify prospective observational studies reporting on childhood or adolescent intakes of dietary fibre, vegetables, fruit and refined or whole grains. Outcomes measured later in life were body weight, blood lipids, blood pressure, glycaemia, bone health, cognition, growth and bowel habits. Potential age-specific ranges for dietary fibre were extrapolated from published adult data. RESULTS We identified 45 publications reporting on 44 354 participants from 30 cohort studies. Mean age at dietary assessment varied from 1 to 19.3 years. Follow-up duration varied from 4 months to 27 years. Although well-conducted studies reported improvements in body weight, blood lipids and glycaemia, the diverse nature of studies precluded meta analysis. The quality of evidence was very low to low given the limited data available per outcome and the inability to synthesize results from multiple studies. Potential dietary fibre intake begins at 13-16 g a day for 2-year-olds and increases until the age of 10 years, when values are comparable with an adult range of 25-30 g a day. CONCLUSIONS Given the inconsistency in findings from cohort studies other than an absence of detrimental effects, it seems appropriate that recommendations regarding childhood fibre intake are extrapolated from relevant adult data.
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Affiliation(s)
| | | | - Jason Montez
- Department of Nutriton and Food SafetyWorld Health OrganizationGenevaSwitzerland
| | - Jim Mann
- Department of MedicineUniversity of OtagoDunedinNew Zealand
- Edgar Diabetes and Obesity Research CentreUniversity of OtagoDunedinNew Zealand
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Abstract
There is a lack of research on associations of social jetlag with eating behaviours and obesity among adolescents. We examined the associations of social jetlag with eating behaviours and BMI in adolescents before and after adjustment for potential confounders. Self-report data were collected from 3060 adolescents (48·1 % female, mean age 15·59 (sd 0·77) years) from the Fragile Families and Child Wellbeing Study. In regression models, social jetlag predicted odds of consumption of breakfast, fruits/vegetables, fast food and sweetened drinks and BMI percentile. Primary models adjusted for school night sleep duration, sex, age, household income and youth living arrangements; secondary models further adjusted for race/ethnicity. In fully adjusted models, greater social jetlag was associated with lower odds of consumption of breakfast (OR = 0·92, P = 0·003) and fruits/vegetables (OR = 0·92, P = 0·009) and higher odds of consumption of fast food (OR = 1·18, P < 0·001) and sweetened drinks (OR = 1·18, P < 0·001). Social jetlag was positively associated with BMI percentile after additional adjustment for eating behaviours (b = 0·84, P = 0·037), but this relationship was attenuated after adjustment for race/ethnicity (b = 0·72, P = 0·072). Ethnoracial differences in social jetlag may attenuate the association of social jetlag with BMI and should be considered in future studies of circadian misalignment, eating behaviours and obesity markers.
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