A classmate shared this article which I am so greatful for and wanted to share it as well. It mentions that one may have the "Sweet tooth gene" which could possibly cause someone to become obese. "
The ideal heart disease–prevention diet may differ significantly among different people, says Ordovas, who studied the biochemistry of cholesterol before he got “hooked" on genetic-related research after attending an American Heart Association seminar on the topic in 1983. Preliminary research suggests that some people reduce their risk for heart disease most significantly by following a low-fat diet; others fare better on a higher-fat diet (assuming they choose healthy fats). Similarly, studies show that some people shed pounds on low-fat, high-carb regimens; others seem to do best on low-carb, higher-fat regimens. Genetic screening may eventually be able to pinpoint who’s who, allowing doctors to offer individualized advice."