Dr. Oz investigates the dangerous diet fad of extreme juicing. Learn how juice cleanses affect your physical health and what makes them unsafe. Plus, Dr. Oz calls on the “germinators” to discover which rooms in your house have the most bacteria.

We've all been there — we get a cramp in our stomach, maybe with some nausea or constipation. It's easy to think it may just be indigestion. But what if it's something more serious like diverticulitis? That's a condition of inflammation or infection in one or more small pouches that can form in your digestive tract. Here's how to tell the difference between the pain and how to know when you should see a doctor.