Our customers have spoken and the glucomannan reviews are in: it’s a convenient and effective way to supplement your diet with extra fiber to promote cholesterol health and support metabolic function. Glucomannan powder comes from Konjac root and is one of nature’s best soluble fibers. It’s a natural bulk-forming agent that can absorb up to 100x its own weight in water, which may have a positive influence on blood sugar levels and cholesterol levels both already within the normal range. A healthy weight loss program can also benefit from a glucomannan supplement, like our comprehensive Glucomannan+ from Swanson Best Weight-Control Formulas. For a 100% natural fiber supplement, stick with our Swanson Premium Konjac Root Fiber.