If you think diet soda is a cure for weight gain, think again. A new study suggests that it not only doesn’t protect against obesity, it might actually be driving you to eat more junk food. Researchers at the University of Illinois at Urbana-Champaign looked at the dietary habits of more than 22,000 U.S. adults, and discovered that the more diet beverages you consume, the more of your daily calories come from foods high in salt, sugar, fat and cholesterol. And it’s not because you don’t know any better: oddly, the more educated you are, the more likely you are […]