Manufactory wholesale konjac flour glucomannan What is konjac glucomannan? konjac glucomanan is a water-soluble dietary fiber derived from the root of the konjac plant.It can absorb up to 50 times their weight in water.The konjac glucomannan contains high fiber,no calories and no carbohydrates.It is type of viscous fiber(souble fiber).In comparison with the wheat flour,the most of benefit is no gluten.Suitable all ages of people. Nutrition information typical values per 100g Energy 198kcal Protein 1.6g Fat