Eating a steady diet of high-fat and high-sugar foods makes it even harder for humans to convert food into energy, causing the body to store more fat, according to a new research report released by The Federation of American Societies for Experimental Biology. The study shows that high-fat and high-sugar foods stimulate the kappa opioid receptor, which causes the body to store more fat than usual. Scientists believe this research could help stop worldwide obesity problems, because it gives researchers a new drug target for developing preventative therapies. One preventative therapy that doesn’t require drugs is eating a varied, veg diet. Doughnuts—vegan, of course—are a great occasional treat, they shouldn’t be the cornerstone of any diet!