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Do young adults value sustainable diet practices? Continuity in values from adolescence to adulthood and linkages to dietary behaviour.

ABSTRACT: OBJECTIVE:To describe continuity over time in reports of valuing sustainable diet practices and investigate relationships between values, household meal behaviours and dietary intake. DESIGN:Observational study. Participant ratings of how important it is for food to be produced as organic, not processed, locally grown and not GM were categorized to represent whether they valued (very/somewhat important) or did not value (a little/not at all important) each practice. Diet quality markers (e.g. fruit servings) were based on an FFQ. SETTING:Mailed and online surveys. PARTICIPANTS:Young adults (n 1620; 58 % female, mean age 31 (sd 1·6) years) who were participating in Project EAT (Eating and Activity among Teens and Young Adults) and responded to follow-up surveys in 2003-2004 and 2015-2016. RESULTS:One-third (36·1 %) of participants reported valuing <2 practices at both assessments; 11·1 and 34·5 % respectively reported valuing ?2 practices in 2003-2004 only and in 2015-2016 only; 18·3 % reported valuing ?2 practices at both assessments. Regression models including demographics, parental status and vegetarian status showed that valuing ?2 practices was associated with preparation of meals with vegetables at least a few times/week, less frequent purchase of family meals from fast-food restaurants, and higher diet quality in 2015-2016. For example, those who valued ?2 practices consumed nearly one full vegetable serving more than other young adults on an average day and part of this difference was specifically associated with intake of dark green and red/orange vegetables. CONCLUSIONS:Addressing the sustainability of food choices as part of public health messaging may be relevant for many young adults.

SUBMITTER: Larson N

PROVIDER: S-EPMC6718301 | biostudies-literature | 2019 Oct

REPOSITORIES: biostudies-literature

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Do young adults value sustainable diet practices? Continuity in values from adolescence to adulthood and linkages to dietary behaviour.

Larson Nicole N Laska Melissa N MN Neumark-Sztainer Dianne D

Public health nutrition 20190606 14

<h4>Objective</h4>To describe continuity over time in reports of valuing sustainable diet practices and investigate relationships between values, household meal behaviours and dietary intake.<h4>Design</h4>Observational study. Participant ratings of how important it is for food to be produced as organic, not processed, locally grown and not GM were categorized to represent whether they valued (very/somewhat important) or did not value (a little/not at all important) each practice. Diet quality m ...[more]

PMID: 31169111

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Project description:BackgroundAn urgent transition to more sustainable diets is necessary for the improvement of human and planetary health. One way to achieve this is for sustainable practices to become mainstream. We estimated the potential health impact of wider adoption of dietary practices deemed by consumers, researchers and stakeholders in Sweden to be niche, sustainable and with the potential to be scaled up.MethodsA life table method was used to estimate the impact - changes in years of life lost (YLL) - over periods of 20 and 30 years in the Swedish population had the practices been adopted in 2010-11, when the last national adult dietary survey was conducted. The practices modelled were reducing red and processed meat (by 25, 50 and 100%), and assuming, for each stage, replacement by an equal weight of poultry/fish and vegetables +/- legumes; reducing milk intake (by 25, 50 and 100%); and reducing sugar-sweetened beverage intake (by 25, 50 and 100%). Using population data together with data on cause-specific mortality and relative risks for diet-disease outcomes, impacts were estimated for each scenario separately and in combination, for the outcomes ischaemic heart disease (IHD), ischaemic stroke, diabetes type 2 and colorectal cancer.ResultsFor a "moderate" combination of scenarios (changes at the 50% level), reductions of 513,200 YLL (lower-upper uncertainty estimate 59,400-797,900) could have been achieved over 20 years and 1,148,500 YLL (135,900-1,786,600) over 30 years. The majority (over 90%) of YLLs prevented were related to IHD, and the majority were in men. The singular practice that had the most impact was reducing the intake of red and processed meat and replacing it with a mixture of vegetables and legumes. Reducing milk intake resulted in an increase in YLL, but this was compensated for by other scenarios.ConclusionIf these practices were more widely adopted, they would be expected to lead to improvements in public health in Sweden. Over the long term, this would translate to many premature deaths postponed or prevented from a number of chronic diseases, to the benefit of individuals, society, the climate and the economy.

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Do young adults value sustainable diet practices? Continuity in values from adolescence to adulthood and linkages to dietary behaviour.

Publications

Do young adults value sustainable diet practices? Continuity in values from adolescence to adulthood and linkages to dietary behaviour.

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