If bacteria causes so many diseases, why are we hearing now that taking them can actually prevent some problems? It turns out, a few key ingredients can be the key to a happy, healthy digestive system. If you’ve ever seen a yogurt commercial you know that probiotics are all the rage. But grab a yogurt container and you probably find yourself with label confusion!

Registered dietitian and nutrition expert Dr. Susan Mitchell has some easy tips for what to look for so you choose a yogurt that is both delicious and good for you (did you know that the key is in the first ingredients on the list?). Plus, why some probiotics can help with all sorts of health challenges like irritable bowel syndrome and ulcerative colitis — IF you get the right ones.