The scientific opinion related to the consumption of konjac glucomannan, published in the 2010 European Food Safety Authority Journal, the Panel on Dietetic Products, Nutrition and Allergies showed glucomannan assisted with the reduction of body weight and maintenance of normal blood cholesterol concentrations.
Glucomannan minimizes the postprandial insulin surge: a potential adjuvant for hepatothermic therapy.
"Glucomannan (GM) is differentiated from other soluble fibers by the extraordinarily high viscosity of GM solutions. Administration of 4-5g of GM with meals, blended into fluid or mixed with food, can slow carbohydrate absorption and dampen the postprandial insulin response by up to 50%. "
"Water-soluble fiber appears to have a greater potential to reduce postprandial blood glucose, insulin, and serum lipid levels than insoluble fiber. Viscosity of the dietary fiber is important; the greater the viscosity, the greater the effect. "