Dietary fiber refers to the edible plant components, carbohydrates, and similar substances that can resist digestion and absorption in the human small intestine but can be partially or fully fermented in the human colon and rectum. It mainly consists of cellulose, pectin substances, hemicellulose, and lignin. It can be divided into two types; one is insoluble dietary fiber (IDF), and the other is soluble dietary fiber (SDF), which can dissolve in water, absorb water and swell, and can be fermented by microorganisms in the colon and rectum, including hydrophilic colloids such as pectin and some hemicellulose. Specification: net content 120g (8gx 15 bags)