AI Article Synopsis
- A study analyzed dietary variety seeking in food among 5,543 middle-aged to elderly twins to estimate heritability.
- The findings showed that up to 30% of the differences in dietary variety could be attributed to genetic factors, while most differences came from individual environmental influences.
- Additionally, the research revealed only a weak link between dietary variety and demographic factors like socioeconomic status, age, and household size.
Article Abstract
The heritability of variety seeking in the food domain was estimated from a large sample (N = 5,543) of middle age to elderly monozygotic and dizygotic twins from the "Virginia 30,000" twin study. Different dietary variety scores were calculated based on a semi-quantitative food choice questionnaire that assessed consumption frequencies and quantities for a list of 99 common foods. Results indicate that up to 30% of the observed variance in dietary variety was explained through heritable influences. Most of the differences between twins were due to environmental influences that are not shared between twins. Additional non-genetic analyses further revealed a weak relationship between dietary variety and particular demographic variables, including socioeconomic status, age, sex, religious faith, and the number of people living in the same household.
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| http://dx.doi.org/10.1016/j.appet.2014.03.001 | DOI Listing |
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