It’s a head-to-head showdown: apple cider vinegar versus the newest contender coconut vinegar. Both claim to boost your immunity and fight illness. See which one is better for your health and has more benefits. Plus, breaking news in the war on cancer: a vaccine to target and eliminate cancer tumors.

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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