Meet the woman who claims the secret to boosting your metabolism is eating more! She claims she's cracked the code on your hunger. Find out how you can heal your body’s fat-fighting furnace with food! Then, breaking news: what’s really in your vitamins? Dr. Oz puts big name brands to the test!

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.