Could a hidden food allergy be making you fat? Dr. Oz reveals the different types of food allergies and shows you how even the healthiest foods can cause negative bodily reactions. Learn how you can use the principles of the elimination diet to diagnose your food allergies and shed those unwanted pounds.

Want to help lower your risk of getting cancer? The answer could be in the food you eat! Dr. John Whyte, chief medical officer at WebMD and the author of "Take Control of Your Cancer Risk," says there are three kinds of foods that could really help prevent cancer: garlic, fish and grapes. And what three kinds of foods should you avoid? Red and processed meats, refined grains, and alcoholic and sugary drinks. Watch the videos below to learn more about how food could be connected to your cancer risk.

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