On today's show, Dr. Oz is joined by controversial author Lyn-Genet Recitas, who claims that the secret to losing weight is chemistry, not calories. In this sneak peek find out why she believes healthy foods could be making you fat.

Is Your Stomach Cramp Actually Diverticulitis?

It may not just be indigestion.

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.