We investigate everything you ever wanted to know about this soda alternative. Are they as healthy as they seem? What's really in them and how do they have so much flavor while being so low in calories? Plus, Health Court is in session: This woman says her best friend can't get enough of the keto diet, eating bacon and fatty foods and hurting her health. Her friend argues she's lost 30 pounds and won't turn back. Who's right?


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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