The health benefits of beta-glucans have been extensively documented. These fibers have a specific molecular structure that makes them highly viscous in the gut. Beta-glucans can improve insulin sensitivity and lower blood sugar levels. They can also significantly reduce cholesterol levels and increase feelings of fullness (30Trusted Source). The m...

Glucomannan is a viscous fiber that is commonly marketed as a weight loss supplement. Numerous studies have shown that glucomannan can cause modest weight loss, fight constipation and improve risk factors for heart disease (31Trusted Source, 32Trusted Source, 33Trusted Source, 34Trusted Source).