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Eating rate is a heritable phenotype related to weight in children.
Am J Clin Nutr. 2008 Dec; 88(6):1560-6.AJ

Abstract

BACKGROUND

There is growing interest in the heritability of behavioral phenotypes related to adiposity. One potential candidate is the speed of eating, although existing evidence for an association with weight is mixed.

OBJECTIVE

We aimed to assess the speed of eating in a sample of 10-12-y-old children to test the hypotheses that higher eating rate is related to greater adiposity and that eating rate is a heritable characteristic.

DESIGN

Video data of 254 twin children eating a standard meal at home were used to record eating rate (bites/min) and changes in eating rate across the 4 quarters of the meal. Adiposity was indexed with body mass index SD scores relative to British 1990 norms; for some analyses, children were categorized into groups of overweight or obese and into 2 subgroups of normal-weight (lower normal-weight or higher normal-weight) for comparison of the eating rate within the normal range as well as between clinical and nonclinical groups. All analyses controlled for clustering in twin pairs. Heritability of eating rate was modeled by using standard twin methods.

RESULTS

There was a significant linear association across the 3 weight groups for eating rate (P = 0.010), and regression analyses showed that eating rate increased by 0.18 bites/min for each 1-unit increase in body mass index SD score (P = 0.005). The heritability of eating rate was high (0.62; 95% CI: 0.45, 0.74). There was no association between weight group and a change (ie, deceleration) in eating rate over the mealtime.

CONCLUSION

Faster eating appears to be a heritable behavioral phenotype related to higher weight.

Authors+Show Affiliations

Health Behaviour Research Centre, Department of Epidemiology and Public Health, University College London, London, United Kingdom.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't
Twin Study

Language

eng

PubMed ID

19064516

Citation

Llewellyn, Clare H., et al. "Eating Rate Is a Heritable Phenotype Related to Weight in Children." The American Journal of Clinical Nutrition, vol. 88, no. 6, 2008, pp. 1560-6.
Llewellyn CH, van Jaarsveld CH, Boniface D, et al. Eating rate is a heritable phenotype related to weight in children. Am J Clin Nutr. 2008;88(6):1560-6.
Llewellyn, C. H., van Jaarsveld, C. H., Boniface, D., Carnell, S., & Wardle, J. (2008). Eating rate is a heritable phenotype related to weight in children. The American Journal of Clinical Nutrition, 88(6), 1560-6. https://doi.org/10.3945/ajcn.2008.26175
Llewellyn CH, et al. Eating Rate Is a Heritable Phenotype Related to Weight in Children. Am J Clin Nutr. 2008;88(6):1560-6. PubMed PMID: 19064516.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Eating rate is a heritable phenotype related to weight in children. AU - Llewellyn,Clare H, AU - van Jaarsveld,Cornelia H M, AU - Boniface,David, AU - Carnell,Susan, AU - Wardle,Jane, PY - 2008/12/10/pubmed PY - 2009/1/14/medline PY - 2008/12/10/entrez SP - 1560 EP - 6 JF - The American journal of clinical nutrition JO - Am J Clin Nutr VL - 88 IS - 6 N2 - BACKGROUND: There is growing interest in the heritability of behavioral phenotypes related to adiposity. One potential candidate is the speed of eating, although existing evidence for an association with weight is mixed. OBJECTIVE: We aimed to assess the speed of eating in a sample of 10-12-y-old children to test the hypotheses that higher eating rate is related to greater adiposity and that eating rate is a heritable characteristic. DESIGN: Video data of 254 twin children eating a standard meal at home were used to record eating rate (bites/min) and changes in eating rate across the 4 quarters of the meal. Adiposity was indexed with body mass index SD scores relative to British 1990 norms; for some analyses, children were categorized into groups of overweight or obese and into 2 subgroups of normal-weight (lower normal-weight or higher normal-weight) for comparison of the eating rate within the normal range as well as between clinical and nonclinical groups. All analyses controlled for clustering in twin pairs. Heritability of eating rate was modeled by using standard twin methods. RESULTS: There was a significant linear association across the 3 weight groups for eating rate (P = 0.010), and regression analyses showed that eating rate increased by 0.18 bites/min for each 1-unit increase in body mass index SD score (P = 0.005). The heritability of eating rate was high (0.62; 95% CI: 0.45, 0.74). There was no association between weight group and a change (ie, deceleration) in eating rate over the mealtime. CONCLUSION: Faster eating appears to be a heritable behavioral phenotype related to higher weight. SN - 1938-3207 UR - https://www.unboundmedicine.com/medline/citation/19064516/Eating_rate_is_a_heritable_phenotype_related_to_weight_in_children_ L2 - https://academic.oup.com/ajcn/article-lookup/doi/10.3945/ajcn.2008.26175 DB - PRIME DP - Unbound Medicine ER -