The main food sources of carbohydrates are: sugar, grains (such as rice, wheat, corn, barley, oats, sorghum, etc. ), fruits (such as sugar cane, melon, watermelon, banana, grape, etc. ), dried fruits, dried beans, root vegetables (such as carrots and sweet potatoes). ).

Carbohydrate is the main source of energy needed by all living things to maintain life activities. It is not only a nutrient, but also some of them have special physiological activities. For example, heparin in the liver has anticoagulant effect; The sugar in blood type is related to immune activity.

Generally speaking, carbohydrates have no specific dietary requirements. It is mainly to obtain a reasonable proportion of calorie intake from carbohydrates. In addition, at least 50 ~100g of digestible carbohydrates should be ingested every day to prevent carbohydrate deficiency.

Extended data:

If people don't eat foods rich in carbohydrates, it may cause insufficient carbohydrate supply in their bodies. In the long run, hypoglycemia will come uninvited. Hypoglycemia is very harmful to human body, especially to nervous system. Slight hypoglycemia can lead to dizziness, cold sweat and bad mood.

Carbohydrate is the most important energy provider during exercise, and the intensity of exercise also depends on the participation of carbohydrate. But carbohydrates can't be stored in the body as much as protein and fat.

Once the supplement is insufficient, it will cause a shortage, especially in the process of a lot of exercise and strong physical labor, which will consume more and faster. If you lack carbohydrates during exercise, your muscles will feel tired and weak.

Baidu encyclopedia-carbohydrates

People's Network-Not eating carbohydrates for a long time is harmful.