Despite the success of his best-selling “South Beach Diet” books, Arthur Agatston shows no signs of slowing down. The 58-year-old cardiologist still sees patients at his private practice in Miami Beach and lectures and teaches at the University of Miami School of Medicine. He's also developing additional healthy products for the South Beach Diet line he developed with Kraft Foods, and he's already working on two more books. Last month—in response, he says, to requests from diet devotees for easy recipes—he published his latest book: “The South Beach Diet Quick and Easy Cookbook: 200 Delicious Recipes Ready in 30 Minutes or Less”.

Every time you turn around a new diet pops up that promises to take excess pounds off and keep them off. In this Consumer Watch Report, we check out popular diets to see which ones work best. Here are the findings on South Beach, Atkins, Slim-Fast and more.

For years the most popular diet slogan was cut the fat. Then it was cut the carbs. Now the latest mantra is: Beef up your lean protein.

It was a harmonic convergence of what might be called "womanity" for Maria Shriver and about 10,000 of her girlfriends.

In the recent flurry of publicity over low-carbohydrate diets, some diet promoters have depicted beer as an unhealthful source of fattening carbohydrates. Not so, says a brewing expert at the University of California, Davis.