Although fiber can not be absorbed by the body, but has a good role in cleaning the intestinal tract, so it has become one of the six nutrients recommended by nutritionists. The fiber content of common foods is as follows: wheat bran: 31% Cereals: 4-10%, arranged from most to least as wheat grain, barley, corn, buckwheat noodles, barley noodles, sorghum rice, black rice. Cereals: 8-9%; oatmeal: 5-6% Potatoes, white potatoes, and other yams contain about 3% fiber. Legumes: 6-15%, ranked from most to least as soybeans, green beans, fava beans, kidney beans, peas, black beans, red pinto beans, and green beans. Whether cereals, potatoes or legumes, in general, the more finely processed, the less fiber content. Vegetables: the highest content of bamboo shoots, dried bamboo shoots of cellulose content of 30-40%, peppers more than 40%. The rest contain more fiber: fern, cauliflower, spinach, pumpkin, cabbage, rape Mushrooms (dried): the highest cellulose content, of which the cellulose content of matsutake mushrooms is close to 50%, more than 30% in accordance with the ranking from most to least: hair mushroom, shiitake mushroom, silver fungus, wood ear. In addition, the fiber content of nori is also high, reaching 20% Nuts: 3-14%. More than 10% are: black sesame seeds, pine nuts, almonds; below 10% are white sesame seeds, walnuts, hazelnuts, pecans, sunflower seeds, watermelon seeds, peanut kernels Fruits: the most content is dried red fruit, with a fiber content close to 50%, followed by dried mulberries, cherries, sour dates, black dates, dates, small dates, pomegranates, apples, duck pears. Various meats, eggs, dairy products, various oils, seafood, alcoholic beverages, soft drinks do not contain cellulose; various baby foods have extremely low cellulose content