Probiotics are booming right now. They’re the “good” bacteria that keep your gut healthy and do away with bloat. But how much can they really change your gut? We put it to the test. See if they work or if they’re a waste.

Dr. Oz goes where he's never gone before. He's letting you eat fast-food and it's not what you expect. Learn which fast food meals you can eat under 500 calories while still enjoying the food you love.

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