Sensa claims to help you lose weight by changin the way you smell food. Hear from experts and real women who've tried it. Should you believe the hype? Dr. Oz investigates.

View Part 1 of Sensa: Sensational or Senseless?


View Part 2 of Sensa: Sensational or Senseless?

View Part 4 of Sensa: Sensational or Senseless?

View Part 5 of Sensa: Sensational or Senseless?

Read more about Sensa and see if it's right for you.

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.