Compulsively emptying toothpaste containers? Smelling your food before you eat it? Find out which of these behaviors is normal and which one is nuts! Plus, Dr. Oz reveals the weird health quirk that could help you lose 10 pounds!

View Part 2 of Lose 10 Pounds With This Nutty Health Habit.

Watch Dr. Oz reveal how to overcome your fear of public restrooms.

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.