The diet food industry’s solution to the spread of obesity has been to reduce the calories in processed foods on the theory that the same volume of food will satisfy your appetite regardless of nutrient content. They had great hopes especially for the idea of low-fat potato chips as a weight loss aid. But it turns out that the artificial fat substitutes used in low-fat foods may actually lead to weight gain and obesity. Researchers at Purdue University conducted a study using laboratory rats fed either a high-fat diet or a low-fat diet of potato chips/crisps. More