Interaction between Genetic Predisposition to Adiposity and Dietary Protein in Relation to Subsequent Change in Body Weight and Waist Circumference

Mikkel Z Ankarfeldt, Sofus C Larsen, Lars Ängquist, Lise Lotte N Husemoen, Nina Roswall, Kim Overvad, Marianne Uhre Jakobsen, Jytte Halkjær, Anne Tjønneland, Allan Linneberg, Ulla Toft, Torben Hansen, Oluf Pedersen, Berit L Heitmann, Arne Astrup and Thorkild I A Sørensen

PLOS ONE, 2014, vol. 9, issue 10, 1-10

Abstract: Background: Genetic predisposition to adiposity may interact with dietary protein in relation to changes of anthropometry. Objective: To investigate the interaction between genetic predisposition to higher body mass index (BMI), waist circumference (WC) or waist-hip ratio adjusted for BMI (WHRBMI) and dietary protein in relation to subsequent change in body weight (ΔBW) or change in WC (ΔWC). Design: Three different Danish cohorts were used. In total 7,054 individuals constituted the study population with information on diet, 50 single-nucleotide polymorphisms (SNPs) associated with BMI, WC or WHRBMI, as well as potential confounders. Mean follow-up time was ∼5 years. Four genetic predisposition-scores were based on the SNPs; a complete-score including all selected adiposity- associated SNPs, and three scores including BMI, WC or WHRBMI associated polymorphisms, respectively. The association between protein intake and ΔBW or ΔWC were examined and interactions between SNP-score and protein were investigated. Analyses were based on linear regressions using macronutrient substitution models and meta-analyses. Results: When protein replaced carbohydrate, meta-analyses showed no associations with ΔBW (41.0 gram/y/5 energy% protein, [95% CI: −32.3; 114.3]) or ΔWC (

Date: 2014
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Persistent link: https://EconPapers.repec.org/RePEc:plo:pone00:0110890

DOI: 10.1371/journal.pone.0110890

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