Dr. Richard Goldfarb, an obesity expert who has studied the latest in diet and weight loss methods, appeared on 11 News Sunday. Here's what his latest research found:

Alli

Pros: FDA approved

Cons: The constant running to the bathroom. FDA approved doesn't mean it's safe for everyone.

Hoodia-Dex-L10

Pros: Suppresses hunger naturally

No known adverse side effects

No stimulant properties

Cons: Must have at least 1,000 milligrams daily to be effective

Low-Gylcemic Diets: South Beach or Zone Diet

Pros: Emphasizes balanced, low-glycemic eating

Cons: Say good-bye to carbs

Many people gain back the weight if they stop the program

Thermogenic Diet Products: Hydroxicut and Slim Quick

Pros: Primary ingredients backed by clinical research

Cons: Contains caffeine and other stimulants that speed up central nervous system and may raise blood pressure.

No studies have been conducted on the product -- just on ingredients.

Nutrition Programs:Weight Watchers, Jenny Craig

Pros: Support System

Focus is portion control-calorie restriction

Cons: Sticking to the program

Limited food options

The doctor recommended the Dex-L10, a supplement made from Hoodia and another product made from the cactus plant called Dex-C20 because they had minimal side effects and breaks up stored fat inside the body. Dex-C20 also targets areas resistant to diet and exercise areas such as love handles and saddlebags.