Mannitol powder is a sugar alcohol derived from plants that has a sweet taste similar to sucrose but with fewer calories. In powder form, it is often used as a bulking agent and sweetener in processed foods like sugar-free candies, gums, and diet beverages. Mannitol powder can also be utilized in pharmaceutical applications as a medication carrier. Though generally safe, over-consumption can lead to digestive issues like diarrhea and bloating. The powder itself is an odorless, white crystalline solid that dissolves easily.