Dietary fiber refers to food nutrients that are difficult to digest and have the function of absorbing water in the digestive system. Dietary fiber is mainly a variety of non-starch polysaccharide plant substances, including cellulose, lignin, chitin, pectin, β-glucan, inulin and oligosaccharides, which are usually divided into two categories: water-insoluble dietary fiber and water-soluble dietary fiber. It is an indispensable substance for a healthy diet. Fiber can clean the digestive wall and enhance the digestive function. At the same time, fiber can dilute and accelerate the removal of carcinogens and toxic substances in food, protect the fragile digestive tract and prevent colon cancer.

After dietary fiber reaches the gastrointestinal tract, it can promote digestion, inhibit human fat and slow down the level of postprandial blood sugar increase. It should not be less than 25g per day, which is beneficial to prevent cardiovascular diseases, rectal cancer and three highs. So, the crucial question is, which foods contain high dietary fiber? Some people say, "It must be miscellaneous grains!" The dietary fiber content of whole grains is not low, but the taste close to it is poor, and people who are used to eating fine ingredients can't accept its taste for a while.

1, each100g of fresh jujube contains about10.6g of dietary fiber;

People mistakenly think that lettuce, kiwi fruit and green lemon are the overlords of vitamin C, but fresh red dates are the real kings. Judging from its nutritional composition, not only vitamin C, but also dietary fiber content can rank first. But at the same time, people need to be reminded to lose weight, because the sugar content of fresh red dates is about 10%, so just eat 2~3.

2. Every hundred grams of cherry contains 7.9 grams of dietary fiber:

Cherry is also a particularly good high-fiber fruit. Eating cherries regularly has the functions of beautifying, resisting infection, improving immunity and eliminating oxygen free radicals in the body. Eating a small handful every day is a very good choice.

3. Every hundred grams of Korla fragrant pear contains 6.7 grams of dietary fiber:

The water content of Korla fragrant pear is very high, which can reach more than 90%. For people with long-term cough, dry skin and low basal metabolism in winter, especially in the northern region where the environmental humidity is extremely low, you can eat a Korla pear every day.

4. Every hundred grams of Redjade apple contains 4.7 grams of dietary fiber:

There are many kinds of apples, but when it comes to high dietary fiber content, that is ruby apples, which can be eaten directly raw or cooked in winter. There is a view that "an apple a day keeps the doctor away".

5. Every hundred grams of banana contains 3. 1g dietary fiber:

Bananas are high in dietary fiber, but because bananas are fresh tropical fruits, they will be harvested by others before they are perfect. It is recommended to wait until they are cooked, otherwise eating bananas is more likely to cause constipation.