Konjac gum comes from the tuber of the plant konjac. Konjac mainly grows in the southern and southwestern provinces of mainland China. Konjac is low in calories, low in protein, and high in dietary fiber, making it an ideal weight loss food. Konjac gum is a polysaccharide composed of D-mannose and D-glucose.

The ratio of D-mannose to D-glucose is 1:1.6. Konjac gum can dissolve in water to form a high-viscosity pseudoplastic solution. It forms an elastic gel after alkali treatment, which is a thermally irreversible gel.

As a low-calorie, low-protein, and high-fiber ingredient, konjac gum is used in food products aimed at weight loss and diet management. It acts as an emulsifier and stabilizer to give smooth, consistent textures in various food applications.