What do all fad diets have in common?

What do all fad diets have in common?

Andrea Giancoli (Registered Dietician ) gives expert video advice on: What are some popular types of fad diets?; What do all fad diets have in common?; What are some of the popular past fad diets? and more...

All fad diets promise quick weight loss. They usually center around one type of eating behavior or one type of food. Usually no scientific proof is behind them. They're generally not nutritionally sound. They tell you you don't have to exercise often. They promise that everything's going to be easy, you won't have to change your eating habits very much and if you do, it's because your eating habits were bad in the first place.