“Fat Chance”

http://www.usatoday.com/news/nation/story/2012/09/21/sugary-drinks-may-magnify-the-genetic-risk-of-obesity/57821200/1

Harvard researchers say that people who are genetically predisposed to obesity are more likely to become obese if they drink a lot of sugary beverages.  Their conclusions are based on studying 32 genes, gathering ancestry data and testing thousands of grouped subjects.  But they could have gotten the same results just from looking at people.