Zero-calorie water is thought to be healthier than soda, but it could be filled with secret additives that replace the sugar and artificial sweeteners. Find out if these hidden ingredients could be ruining your diet and making you overeat. Plus, we investigate what the “natural” flavors in these drinks really are.

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.