Citrucel with SmartFiber is 100% soluble fiber that does not ferment in the intestines, so it won't cause embarrassing excess gas*. Only Citrucel has SmartFiber - the fiber you need without the fiber effects you don't. It also dissolves completely in water and is non-allergenic and gluten-free. Citrucel with SmartFiber is also available in powder, sugar-free powder, caplet and soft chew products.
*Based on laboratory testing. Individual results may vary.