Vegetables, fruits, coarse grains and green juice. High fiber content, low fat content, easy to feel full, and have the function of clearing heat and diuresis.

Eating foods containing a lot of fiber can achieve this goal, because human intestines and stomach can't absorb and break down fiber. Foods containing dietary fiber swell with water, which makes them feel full and not easy to get hungry.

Extended information:

High-fiber food refers to food rich in dietary fiber, which is beneficial to human health if eaten regularly. Dietary fiber (DF) is a part of plants, which is not digested by human body, and has significant health benefits.

There are more than a thousand kinds of dietary fiber in nature. Dietary fibers from different sources have great differences in their chemical composition, so their physiological effects are also very different. The same characteristic of dietary fiber is that intestinal enzymes can't be decomposed and utilized, and it has low energy value. Moreover, shortchain fatty acids (SCFAs) can be produced by fermentation under the action of intestinal bacteria, which can promote probiotics to play a wide range of health functions.

Dietary fiber has certain health effects in intestinal health, blood sugar regulation and prevention of type 2 diabetes, satiety and weight regulation, prevention of lipid metabolism disorder, and prevention of certain cancers. Whole grains, beans, fruits, vegetables and potatoes are the main sources of dietary fiber, and the contents in nuts and seeds are also high. Although foods rich in dietary fiber have the above benefits, they should not be partial to food. The correct dietary principles are: reducing the intake of fat, appropriately increasing the proportion of vegetables and fruits, and maintaining a balanced nutrition.

reference link: Baidu encyclopedia-high fiber food