calories in' is the primary driver of weight gain As another poster points out elsewhere in this thread - that's like saying that fuel consumption is the prima

calories in' is the primary driver of weight gain As another poster points out elsewhere in this thread - that's like saying that fuel consumption is the primary cause of auto accidents. They have problems with portion control, and recognising just how much they are eating. Nutrition is about far more than calories in. Controlling cravings through controlling the insulin response is enormously important. The types of foods that make up calories is enormously important.