Mannitol powder is a sugar alcohol that is commonly used as a sugar-substitute sweetener. It is found naturally in a variety of foods, such as strawberries, mushrooms, celery, onions, and pumpkins. Mannitol powder is most commonly used as a sugar-substitute sweetener, but it may have some health benefits when taken as a supplement.* Mannitol may support the digestive system, kidneys, and bladder.** These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.