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1 Artificial Sweeteners Artificial sweeteners and sugar alcohols, particularly mannitol and sorbitol, can cause diarrhea in some people. 2  Mannitol and sorbitol linger in the stomach, Schiller says, which can result in bloating and diarrhea.
The best way to avoid diarrhea-inducing sweeteners is to read food labels. The FDA requires foods with over 50 grams of mannitol or sorbitol to list a possible laxative effect on the label. 1  Alcohol, Caffeine, and Soda When you have diarrhea, the beverages you drink can worsen your condition.