Recent studies suggest that we all eat more when we are eating food labeled low fat. Yikes!
When fat is taken out of a food it is usually replaced with sugar, and sugar is not low in calories (or carbs for that matter). Generally the foods labeled as low fat are only 11% lower in fat when compared with their regular fat counterparts. Yet most folks think "low fat" means the foods are 40% lower in fat content. Because of this misconception, people tend to eat over 28% more calories when eating low fat foods.
Fit's Tip: Basically your best bet is to eat just a little bit of whatever you're really craving since the full fat version is tastier and ultimately better for your waist since chances are you will not over indulge.