In a study published in the June 20, 2011 edition of Behavioral Neuroscience researchers from Purdue University report that rats fed both low-calorie, olestra potato chips and high-calorie, high-fat (HF) regular chips gain more weight...Study: Drinking diet soda actually causes weight gain, blood sugar spikes7/24/2011 - Contrary to popular belief, diet soda and other foods and beverages made with