Some common supplements that cause diarrhea include vitamin C, zinc, and fish oil. Here's why and how to prevent diarrhea from vitamins and supplements.

Diarrhea can often be stopped by using over-the-counter (OTC) medications such as loperamide (Imodium) or bismuth subsalicylate (Pepto-Bismol). Remember, though, that diarrhea caused by a virus or ...