All fresh green leafy vegetables are effective for constipation because they are rich in dietary fiber. Green leafy vegetables are mostly alkaline, which can neutralize sugar, meat, eggs and excessive acidic substances produced in metabolism, so that body fluids remain weakly alkaline, thus eliminating toxic substances in the blood. Vegetables that you often eat can be radish leaves, green vegetables, rape leaves, spinach, kale, Chinese cabbage, carrots, cauliflower, cabbage and so on.

Category II: Fruits

You can eat lemons, oranges, grapefruit, grapes, sugarcane juice, plums, apples, tomatoes and so on. Although the taste of fruit is mostly sour, it can become alkaline when metabolized in the body, keeping the blood alkaline. In particular, they can "dissolve" toxins accumulated in cells and eventually excrete them through the excretory system.

The third category: potatoes

The most anticancer nutrients in the diet are β -carotene (the precursor of vitamin A), vitamin C and folic acid, and the contents of the three are rich in sweet potatoes. A small sweet potato (about 2 times) can provide twice the daily vitamin A, one third of the daily vitamin C, and about 50 micrograms of folic acid. The content of dietary fiber is higher than a bowl of oatmeal.

The fourth largest category of beans.

Beans are not only rich in protein, but also rich in starch food and dietary fiber in miscellaneous beans other than soybeans, black beans and green beans.

Category V: Bacteria and Algae

Bacteria and algae foods include mushrooms, kelp, seaweed, fungus and so on. These foods contain phytochemicals, which can prevent cancer and eliminate heavy metals.