A popular food additive called inulin can cause gastrointestinal problems for people who are not aware they are consuming too much of it. This so-called "stealth fiber" is found in chocolate bars, drinks, and commonly consumed snacks. In fact, it is so common that people often eat more of it than their bodies can tolerate. Inulin is a carbohydrate fiber that occurs naturally in many foods like bananas, wheat, and garlic, though it can be extracted from chicory root for industrial use. People...