Dr. Oz hosts a debate about genetically modified foods. Do they cause cancer? Are there benefits to going GMO-free? Hear from both sides of this controversial issue. Plus, Dr. Oz explains how genetically modified food is made.

View Part 2 of Genetically Modified Foods: Are They Safe?


Learn more about the genetically modified foods debate.

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.