According to the FTC, what percentage of advertising for weight-loss products and services contain false or unsupported claims?
A. 25 percent
B. 36 percent
C. 42 percent
D. 55 percent
E. 67 percent

Some products claim they can promote "substantial" weight loss. How much is safe and reasonable, according to nutrition experts?
A. Half a pound a week
B. A pound a week
C. Two pounds a week
D. Three pounds a week
E. More than three pounds a week

Some products say they can prevent calories from being absorbed, and thus lead to weight loss. What's the maximum amount of weight that can be lost using this method, according to experts?
A. One-third pound a week
B. One-half pound a week
C. One pound a week
D. None of the above

Some products say they can boost your resting metabolism, causing you to "burn fat" without working out. Green tea extract is one purported metabolism booster. How much can it really boost your metabolism?
A. 2 percent
B. 4 percent
C. 5 percent
D. 7 percent

Which of these claims should be a red flag about the safety or effectiveness of a weight-loss product?
A. It causes permanent weight loss
B. It helps the user lose more than three pounds a week for more than four weeks
C. Substantial weight loss occurs by wearing a device or rubbing a substance on the skin
D. All of the above

For the Atkins diet, you eat a low-carbohydrate, high-protein, high-fat diet that will supposedly put your body into a state in which you're burning fat for fuel. What concerns nutritionists about this diet?
A. Few vegetables and fruits are eaten
B. The saturated fat in this diet promotes heart disease
C. Too many dairy products are consumed
D. A and B
E. None of the above

One of the latest diet trends is the South Beach diet, named for that trendy part of Florida. This diet focuses on something called the glycemic index of foods. What concerns nutritionists about this diet?
A. Like Atkins, this diet includes lots of saturated fat
B. Desserts are limited on this diet
C. Refined carbohydrates are limited on this diet
D. All of the above

High-protein/low-carbohydrate diets are faulted because of their emphasis on saturated fats. What's another problem with these diets?
A. They can cause headaches
B. They can cause bad breath
C. They can make you feel tired and weak
D. All of the above

At the opposite end of the diet spectrum from the Atkins and South Beach Diets is the Lifestyle Diet, designed by physician Dean Ornish. What do nutritionists fault in this diet?
A. Too many high-fiber foods
B. Too little meat
C. Too little fat
D. None of the above

If you follow a low-fat diet, you don't have to watch your portions of which of these foods?
A. Pasta
B. Nonfat cookies
C. Nonfat chips
D. Whole-wheat bread
E. None of the above