Author Interviews, Genetic Research, Weight Research / 05.12.2017
Why Isn’t Your Diet Working? It’s In Your Genes
MedicalResearch.com Interview with:
William Barrington, PhD lead author on the study
Recently graduated PhD student from the Threadgill lab
David Threadgill, PhD
Texas A&M College of Medicine and
College of Veterinary Medicine & Biomedical Sciences, senior author
MedicalResearch.com: What is the background for this study? What are the main findings?
Response: Obesity and diet-induced diseases, such as cardiovascular disease, have reached epidemic proportions. The United States has offered universal dietary recommendations for decades, but they have been largely unsuccessful in reducing diet-induced diseases. These recommendations are largely built upon population-level data, which examines a large number of individuals and determines the average response to a dietary intervention. However, if there is large variation in responses within a population, then population-level data may be inadequate to improve health across genetically diverse individuals.
Our study used four genetically diverse types of mice to examine how one’s genetics interact with diet to influence obesity and risk factors for cardiometabolic disease. The study compared four popular human diets (American, Mediterranean, Japanese, and Maasai/ketogenic). While all mice suffered detrimental effects from the American diet, the severity of disease varied widely across the types of mice. In comparison, no single diet improved health across all strains, but there was one or more diets that improved health in each strain.
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