Sugar-free gum is a better option than gum containing sucrose to help prevent tooth decay or cavities. Most sugar-free gum contains sorbitol, which gives the gum a sweet flavor without the added sugar.
One of the main reasons you want to limit how much sugar-free gum you chew is to ensure you are not ingesting too much sorbitol. Sorbitol is a laxative that is poorly absorbed by the small intestine. So in large doses, sorbitol can cause gastrointestinal side effects such as gas, bloating, abdominal pain and diarrhea. Chewing roughly 15 to 18 pieces of gum daily may cause the average person to experience these unpleasant symptoms.
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