A new study conducted by researchers at the University of Cincinnati suggests that drinking large amounts of beverages containing fructose adds body fat, and might explain why sweetening with fructose could be even worse than using other sweeteners.The team led by Matthias Tschvp allowed mice to freely consume either water, fructose sweetened water or soft drinks. They found increased body fat in the mice that drank the fructose-sweetened water and soft drinks--despite that fact that these animals decreased the amount of calories they consumed from solid food.It suggests that the total amount of calories consumed when fructose is added to diets may not be the only explanation for weight gain. Instead, consuming fructose appears to affect metabolic rate in a way that favours fat storage.