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Cheung MM, Hubert PA, Reed DR, Pouget ER, Jiang X, Hwang LD. Understanding the determinants of sweet taste liking in the African and East Asian ancestry groups in the U.S.-A study protocol. PLoS One 2024; 19:e0300071. [PMID: 38683826 PMCID: PMC11057733 DOI: 10.1371/journal.pone.0300071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2024] [Accepted: 02/20/2024] [Indexed: 05/02/2024] Open
Abstract
BACKGROUND The liking for sweet taste is a powerful driver for consuming added sugars, and therefore, understanding how sweet liking is formed is a critical step in devising strategies to lower added sugars consumption. However, current research on the influence of genetic and environmental factors on sweet liking is mostly based on research conducted with individuals of European ancestry. Whether these results can be generalized to people of other ancestry groups warrants investigation. METHODS We will determine the differences in allele frequencies in sweet-related genetic variants and their effects on sweet liking in 426 adults of either African or East Asian ancestry, who have the highest and lowest average added sugars intake, respectively, among ancestry groups in the U.S. We will collect information on participants' sweet-liking phenotype, added sugars intake (sweetness exposure), anthropometric measures, place-of-birth, and for immigrants, duration of time living in the U.S. and age when immigrated. Ancestry-specific polygenic scores of sweet liking will be computed based on the effect sizes of the sweet-related genetic variants on the sweet-liking phenotype for each ancestry group. The predictive validity of the polygenic scores will be tested using individuals of African and East Asian ancestry from the UK Biobank. We will also compare sweet liking between U.S.-born individuals and immigrants within each ancestry group to test whether differences in environmental sweetness exposure during childhood affect sweet liking in adulthood. DISCUSSION Expanding genetic research on taste to individuals from ancestry groups traditionally underrepresented in such research is consistent with equity goals in sensory and nutrition science. Findings from this study will help in the development of a more personalized nutrition approach for diverse populations. TRIAL REGISTRATION This protocol has been preregistered with the Center for Open Science (https://doi.org/10.17605/OSF.IO/WPR9E).
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Affiliation(s)
- May M. Cheung
- City University of New York, Brooklyn College, Brooklyn, New York, United States of America
| | - Patrice A. Hubert
- Monell Chemical Senses Center, Philadelphia, Pennsylvania, United States of America
| | - Danielle R. Reed
- Monell Chemical Senses Center, Philadelphia, Pennsylvania, United States of America
| | - Enrique R. Pouget
- City University of New York, Brooklyn College, Brooklyn, New York, United States of America
| | - Xinyin Jiang
- City University of New York, Brooklyn College, Brooklyn, New York, United States of America
| | - Liang-Dar Hwang
- Institute for Molecular Bioscience, The University of Queensland, Brisbane, Queensland, Australia
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Cheung MM, Hubert PA, Reed DR, Pouget ER, Jiang X, Hwang LD. Understanding the Determinants of Sweet Liking in the African and East Asian Ancestry Groups in the U.S. - A Study Protocol. RESEARCH SQUARE 2023:rs.3.rs-3644422. [PMID: 38076869 PMCID: PMC10705709 DOI: 10.21203/rs.3.rs-3644422/v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/22/2023]
Abstract
Background The liking for sweet taste is a powerful driver for consuming added sugars, and therefore, understanding how sweet liking is formed is a critical step in devising strategies to lower added sugars consumption. However, current research on the influence of genetic and environmental factors on sweet liking is mostly based on research conducted with individuals of European ancestry. Whether these results can be generalized to people of other ancestry groups warrants investigation. Methods We will determine the differences in allele frequencies in sweet-related genetic variants and their effects on sweet liking in 426 adults of either African or East Asian ancestry, who have the highest and lowest average added sugars intake, respectively, among ancestry groups in the U.S. We will collect information on participants' sweet-liking phenotype, added sugars intake (sweetness exposure), anthropometric measures, place-of-birth, and for immigrants, duration of time living in the U.S. and age when immigrated. Ancestry-specific polygenic scores of sweet liking will be computed based on the effect sizes of the sweet-related genetic variants on the sweet-liking phenotype for each ancestry group. The predictive validity of the polygenic scores will be tested using individuals of African and East Asian ancestry from the UK Biobank. We will also compare sweet liking between U.S.-born individuals and immigrants within each ancestry group to test whether differences in environmental sweetness exposure during childhood affect sweet liking in adulthood. Discussion Expanding genetic research on taste to individuals from ancestry groups traditionally underrepresented in such research is consistent with equity goals in sensory and nutrition science. Findings from this study will help in the development of a more personalized nutrition approach for diverse populations. Trial registration This protocol has been preregistered with the Center for Open Science (https://doi.org/10.17605/OSF.IO/WPR9E) and is approved by the City University of New York Human Research Protection Program (IRB#: 2023-0064-Brooklyn).
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Santollo J, Daniels D, Leshem M, Schulkin J. Sex Differences in Salt Appetite: Perspectives from Animal Models and Human Studies. Nutrients 2023; 15:208. [PMID: 36615865 PMCID: PMC9824138 DOI: 10.3390/nu15010208] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 12/26/2022] [Accepted: 12/29/2022] [Indexed: 01/04/2023] Open
Abstract
Salt ingestion by animals and humans has been noted from prehistory. The search for salt is largely driven by a physiological need for sodium. There is a large body of literature on sodium intake in laboratory rats, but the vast majority of this work has used male rats. The limited work conducted in both male and female rats, however, reveals sex differences in sodium intake. Importantly, while humans ingest salt every day, with every meal and with many foods, we do not know how many of these findings from rodent studies can be generalized to men and women. This review provides a synthesis of the literature that examines sex differences in sodium intake and highlights open questions. Sodium serves many important physiological functions and is inextricably linked to the maintenance of body fluid homeostasis. Indeed, from a motivated behavior perspective, the drive to consume sodium has largely been studied in conjunction with the study of thirst. This review will describe the neuroendocrine controls of fluid balance, mechanisms underlying sex differences, sex differences in sodium intake, changes in sodium intake during pregnancy, and the possible neuronal mechanisms underlying these differences in behavior. Having reviewed the mechanisms that can only be studied in animal experiments, we address sex differences in human dietary sodium intake in reproduction, and with age.
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Affiliation(s)
- Jessica Santollo
- Department of Biology, University of Kentucky, Lexington, KY 40506, USA
| | - Derek Daniels
- Department of Biology, University at Buffalo, Buffalo, NY 14260, USA
| | - Micah Leshem
- School of Psychological Sciences, The University of Haifa, Haifa 3498838, Israel
| | - Jay Schulkin
- School of Medicine, University of Washington, Seattle, WA 98195, USA
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Juárez SP, Honkaniemi H, Gustafsson NK, Rostila M, Berg L. Health Risk Behaviours by Immigrants’ Duration of Residence: A Systematic Review and Meta-Analysis. Int J Public Health 2022; 67:1604437. [PMID: 35990194 PMCID: PMC9388735 DOI: 10.3389/ijph.2022.1604437] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2021] [Accepted: 06/28/2022] [Indexed: 12/02/2022] Open
Abstract
Objectives: The aim was to systematically review and synthesise international evidence on changes in health risk behaviours by immigrants’ duration of residence. Methods: We searched literature databases for peer-reviewed quantitative studies published from 2000 to 2019, examining alcohol, drug and tobacco use; physical inactivity; and dietary habits by duration of residence. Results: Narrative synthesis indicated that immigrants tend to adopt health risk behaviours with longer residence in North America, with larger variation in effect sizes and directionality in other contexts. Random-effects meta-analyses examining the pooled effect across all receiving countries and immigrant groups showed lower odds of smoking (OR 0.54, 0.46–0.63, I2 = 68.7%) and alcohol use (OR 0.61, 0.47–0.75, I2 = 93.5%) and higher odds of physical inactivity (OR 1.71, 1.40–2.02, I2 = 99.1%) among immigrants than natives, but did not provide support for a universal trend by duration of residence. Conclusion: Findings suggest that duration of residence could serve as an effective instrument to monitor immigrants’ health changes. However, differences in receiving country contexts and immigrant populations’ composition seem to be important to predict the level and direction of behavioural change. Systematic Review Registration:https://www.crd.york.ac.uk/prospero/, PROSPERO CRD42018108881.
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Affiliation(s)
- Sol P. Juárez
- Centre for Health Equity Studies (CHESS), Stockholm University/Karolinska Institutet, Stockholm, Sweden
- Department of Public Health Sciences, Faculty of Social Sciences, Stockholm University, Stockholm, Sweden
- *Correspondence: Sol P. Juárez,
| | - Helena Honkaniemi
- Centre for Health Equity Studies (CHESS), Stockholm University/Karolinska Institutet, Stockholm, Sweden
- Department of Public Health Sciences, Faculty of Social Sciences, Stockholm University, Stockholm, Sweden
| | - Nina-Katri Gustafsson
- Centre for Health Equity Studies (CHESS), Stockholm University/Karolinska Institutet, Stockholm, Sweden
- Department of Public Health Sciences, Faculty of Social Sciences, Stockholm University, Stockholm, Sweden
| | - Mikael Rostila
- Centre for Health Equity Studies (CHESS), Stockholm University/Karolinska Institutet, Stockholm, Sweden
- Department of Public Health Sciences, Faculty of Social Sciences, Stockholm University, Stockholm, Sweden
| | - Lisa Berg
- Centre for Health Equity Studies (CHESS), Stockholm University/Karolinska Institutet, Stockholm, Sweden
- Department of Public Health Sciences, Faculty of Social Sciences, Stockholm University, Stockholm, Sweden
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Leshem M, Shaul S. Vegans, vegetarians and omnivores differ in nutrient hedonics, salt and sweet preference and flavouring. Physiol Behav 2022; 255:113936. [PMID: 35931195 DOI: 10.1016/j.physbeh.2022.113936] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2022] [Revised: 07/20/2022] [Accepted: 08/01/2022] [Indexed: 11/18/2022]
Abstract
BACKGROUND Dietary content can influence taste responses. Therefore, we compared nutrient hedonics (liking foods by nutrient content), and seasoning, including taste responses to the prime flavours salt and sweet in 30 vegan, 37 vegetarian and 56 omnivore men and women. METHODOLOGY Questionnaires and taste tests examined macronutrient and electrolyte intake and hedonics, seasoning, salt and sweet preferences and psychophysical taste responses. RESULTS Compared to omnivores, vegans had lower protein, Ca++, Na+ intake, and increased carbohydrate (CHO) intake. Independently of intake, hedonics for protein Ca++ and Na+ were reduced and increased for CHO. Psychophysical responses to NaCl and sucrose also differed slightly, vegans and vegetarians scoring high concentrations of sucrose as more intense, Vegans reported more sweetening and less salting of food, added more sucrose to a test tea, less salt to a test soup, but did not differ in seasoning with oil or hot spice. PRINCIPAL CONCLUSIONS Habitual vegan, vegetarian and omnivore diets may alter taste responses to nutrient content and salt and sweet, the latter more pronounced in vegan and vegetarian women. Recognising diet-dependent changes in taste hedonics can inform diets and products.
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Affiliation(s)
- Micah Leshem
- School of Psychological Sciences, The University of Haifa, Israel.
| | - Smadar Shaul
- School of Psychological Sciences, The University of Haifa, Israel
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Zhang S, Ma YT, Feng YC, Wang CY, Zhang DJ. Potential effects of mung bean protein and a mung bean protein-polyphenol complex on oxidative stress levels and intestinal microflora in aging mice. Food Funct 2022; 13:186-197. [PMID: 34877954 DOI: 10.1039/d1fo03058b] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
This study investigated the effects of mung bean protein (MPI) and a MPI-polyphenol complex on oxidative stress levels and intestinal microflora in a D-galactose-induced aging mouse model. MPI and MPI-polyphenol complex intervention significantly increased activity of superoxide dismutase (SOD) and catalase and other antioxidant enzymes, improved the abundance and diversity of intestinal flora, and decreased the Firmicutes to Bacteroidetes ratio. Among them, the complex was more conducive to the improvement of the activity of antioxidant enzymes. The addition of MPI and the MPI-polyphenol complex can help the proliferation of Bacteroidetes, Bifidobacterium and Roseburia in the intestinal tract of aging mice, and inhibit the growth of Firmicutes and Ruminococcus, and the proliferation effect of the complex on Bifidobacterium was better than that of MPI. MPI significantly upregulated five pathways related to lipid and energy metabolism. Roseburia and Muribaculaceae were negatively correlated with malondialdehyde levels and positively correlated with SOD and other antioxidant enzyme indices. Our findings showed that MPI and MPI-polyphenol complexes can delay aging in mice by reducing oxidative damage and regulating intestinal flora. We also found a strong relationship between the abundance of intestinal flora and the levels of oxidative stress-related enzymes. This study provides theoretical support for the health and anti-aging benefits of mung bean food products.
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Affiliation(s)
- Shu Zhang
- College of Food, Heilongjiang Bayi Agricultural University, Xinfeng Lu 5, Daqing 163319, PR China. .,National Coarse Cereals Engineering Research Center, Daqing 163319, PR China
| | - Yan-Tao Ma
- College of Food, Heilongjiang Bayi Agricultural University, Xinfeng Lu 5, Daqing 163319, PR China.
| | - Yu-Chao Feng
- College of Food, Heilongjiang Bayi Agricultural University, Xinfeng Lu 5, Daqing 163319, PR China.
| | - Chang-Yuan Wang
- College of Food, Heilongjiang Bayi Agricultural University, Xinfeng Lu 5, Daqing 163319, PR China. .,National Coarse Cereals Engineering Research Center, Daqing 163319, PR China
| | - Dong-Jie Zhang
- College of Food, Heilongjiang Bayi Agricultural University, Xinfeng Lu 5, Daqing 163319, PR China. .,National Coarse Cereals Engineering Research Center, Daqing 163319, PR China
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Dupas de Matos A, Hay C, Low J, Feng J, Lu D, Day L, Hort J. Comparing liking and attitudes of Chinese immigrants in New Zealand towards drinkable yoghurt: an exploratory study. Food Qual Prefer 2021. [DOI: 10.1016/j.foodqual.2021.104299] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Adherence to the Mediterranean Diet in a Portuguese Immigrant Community in the Central Valley of California. Nutrients 2021; 13:nu13061989. [PMID: 34207909 PMCID: PMC8226530 DOI: 10.3390/nu13061989] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Revised: 05/27/2021] [Accepted: 06/04/2021] [Indexed: 01/25/2023] Open
Abstract
The Mediterranean Diet (MedDiet) is a healthy eating pattern associated with a better quality of life among older adults and reduced risk of non-communicable diseases. Little is known about the MedDiet in immigrant communities from countries in which the MedDiet is a settled cultural heritage. Thus, we examined MedDiet adherence and perceived knowledge, benefits, and barriers to the MedDiet in a Portuguese immigrant community in Turlock, California. A cross-sectional study was conducted with 208 participants in Turlock and Livermore, California, which was used as a reference population. Univariate, multivariable, and logistic regression models were used for data analysis. Compared to the Livermore group, the Turlock group was younger and less educated, but had a higher average MedDiet score and active adherence to a MedDiet (p < 0.001 for both). In the Turlock group, convenience, sensory appeal, and health were observed to be significant barriers to the MedDiet (p < 0.05), while health, weight loss, natural content, familiarity, price, sensory appeal, and mood were significant benefit factors (p < 0.05). In conclusion, participants in Turlock had greater MedDiet adherence despite lower education attainment. Furthermore, the perceived benefits of the MedDiet were key factors in MedDiet perception and adherence in a Portuguese immigrant community.
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