OptiFiber Lean features Shimizu Propol A propolmannan—a highly pure, natural soluble fiber. Propol A is created from Amorphophallus konjac-derived glucomannan using proprietary processing techniques. This fiber has been studied for its viscosity and for its stability through the digestive tract; and studies support its health effects, such as on satiety, weight control, glucose and lipid metabolism, and bowel regularity.*

*Follow recommended dosing or use as directed by your healthcare practitioner. Individuals taking medication should discuss potential interactions with their healthcare practitioner prior to use. These statements have not been evaluated by the Food and Drug Administration. These products are not intended to diagnose, treat, cure, or prevent any disease.