1, to prevent excessive calorie intake and obesity. The volume of dietary fiber increases after absorbing water, which makes people feel full, prevents excessive intake of heat energy, and is beneficial to the prevention and treatment of obesity. Eating high-fiber food can reduce the absorption of fat in the process of digestion, which can not only control weight, but also make the body full of vitality, thus achieving the goal of losing weight and bodybuilding.

2. Reduce lipids in blood and liver, and prevent and treat cardiovascular diseases, especially water-soluble dietary fiber has this function. Generally, pregnant women and the elderly have loose digestive tract muscles and need to consume more dietary fiber. Dietary fiber can reduce the fat content closely related to heart disease such as cholesterol and triglyceride, and prevent vascular complications such as arteriosclerosis and hypertension.

3. Reduce blood sugar and prevent diabetes. Dietary fiber can reduce the human body's need for insulin, regulate blood sugar, help control diabetes and prevent the occurrence and development of complications.

4. Promote intestinal peristalsis and prevent constipation. Dietary fiber can absorb and maintain the water in the intestine, increase the volume of feces and promote intestinal peristalsis, thus shortening the time for food residues to pass through the intestine, reducing the pressure on the colon and helping to prevent constipation.

5. Reduce or control the occurrence and development of cancer. It is found that lignin in dietary fiber has the activity of phagocytizing bacteria and cancer cells, which can reduce or control the occurrence and development of cancer. Dietary fiber can dilute the concentration of carcinogens and other harmful substances in the intestine, shorten the residence time of these poisons in the intestine, promote the discharge of harmful substances in the intestine and prevent intestinal tumors.

6. Ensure adequate water supply for human body. Dietary fiber also has a magical function, which can exist in the body in the form of "puffing", increase intestinal volume, increase intestinal water storage capacity, greatly improve the secretion of digestive juice, prevent indigestion, increase water molecules in blood, and prevent blood from thickening and viscosity, thus ensuring adequate water supply for human body.

Extended data:

Matters needing attention in eating coarse grains

1, people who lack elements such as calcium and iron.

Because coarse grains contain phytic acid and dietary fiber, they will combine to form precipitation, which will hinder the body's absorption of minerals.

2. People with digestive system diseases

If you have cirrhosis, esophageal varices or gastric ulcer, eating a lot of coarse grains is easy to cause venous rupture and ulcer bleeding.

3. People with low immunity

If you consume more than 50g of cellulose every day for a long time, it will hinder people's protein supplement, reduce the utilization rate of fat, damage the functions of organs such as bones, heart and blood, and reduce people's immunity.

References:

Baidu encyclopedia-coarse grains