Diet and lifestyle can overcome genetic obesity
“High levels of moderate-to-vigorous physical activity may attenuate the underlying genetic risk for increased BMI during adolescence, which is such a high-risk period for the later development of adult obesity”.
Andrea Richardson, MPH, a PhD candidate at the University of North Carolina at Chapel Hill, and colleagues, looked over data from a US nationally representative sample of 8,113 students from the National Longitudinal Study of Adolescent Health (Add Health).
Richardson noted a significant genetic contribution to obesity of about 40% to 70%, however, as we know, previous studies have shown that certain environmental factors (the modern lifestyle with its poor eating habits), can modify the genetic predisposition for obesity.
The researchers found physical activity and exercise can help overcome a genetic predisposition for obesity.
This basically means that regardless of your genetics, your weight is mostly due to your diet, lifestyle and environment.
Study by Andrea Richardson, et al “The joint role of moderate-to-vigorous physical activity and established obesity genetic variants with the body mass index in a large and ethnically diverse cohort of U.S. adolescents” as presented to the Obesity Society, 2012; abstract 1-OR. The study was funded by a grant from the NIH. As reported by MedPage Today on September 22, 2012.