Research led by David Pierce at the University of Alberta studied eating habits of rats and found that the rats would overeat when fed "diet" foods.
Though the new study was conducted in animals, it adds to a growing body of research in humans that suggests a diet-foods paradox: the more low-calorie (or even zero-calorie) sodas and foods you consume, the more your body demands payback for the calories it was deprived.
It makes total sense. Case in point: In my attempt to save money on lunch, I've been bringing Lean Cuisine meals to work--only to find that an hour later, I'm still famished.
There has been a lot of debate over "unhealthy" foods, and how brands should all conform to the "healthy living" standard (basically, low-calorie, low-fat, lots of fiber, etc). Will the news about the drawback of "diet" foods change the content of these products?
If all else fails, I say go to Subway- it's filling and fiberful (if you get the whole wheat bread).