... 25 cm. With rich nutrients, konjac has a starch content of 35%, a protein content of over 3%, as well as multiple vitamins and ... , phosphorus, selenium, etc. Besides, it also contains a content of over 45% of Polysaccharide Konjac, i.e. glucomanno glycan gum, which is needed by ... iron broom” in Japan. From the nutritional point of view, konjac is a kind of food featured by low calorie, low protein, low ...