The major drawback of most fad diets is:
a. they promote false information about weight loss.
b. they do not create lifestyle changes to support long-term weight control.
c. they create false hopes among those who try them.
d. they usually require the purchase of dietary supplements.
All of these can be true of fad diets but A is especially true. You need a balance of foods in order to be healthy and many fad diets don't support this. They teach dieters to eat a lot of a few types of food which creates an unhealthy idea of how to lose weight.
