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What is the nutritional value of grapes?
Grape is a kind of nutritious fruit. Grape juice is praised by scientists as "plant milk". Grape contains trace elements such as protein, carbohydrate, crude fiber, calcium, phosphorus, iron and potassium. It also contains carotene, vitamin B 1, vitamin B2, vitamin C, vitamin P, vitamin PP and so on. In addition, it also contains more than ten kinds of amino acids and a lot of fruit acids needed by human body. Grape has a high sugar content, mainly glucose. Therefore, eating grapes often has a nourishing effect on neurasthenia and fatigue. Wine is a low-alcohol beverage, which contains more than a dozen amino acids, and is rich in vitamin B 12 and vitamin P. It has the characteristics of sweet taste, mild nature, bright color, drunkenness, easy to sober up and nourishing. Drinking a small amount often has the effects of relaxing muscles and tendons, promoting blood circulation, stimulating appetite and strengthening the spleen, helping digestion and refreshing.

1, glucose

The sugar in grapes is easily absorbed by the human body. The sugar in grapes is mainly glucose, which can be quickly absorbed by human body, especially when hypoglycemia occurs in human body. If you drink grape juice in time, you can relieve the symptoms quickly.

2.polyphenols

Grape contains natural polyphenols, which can combine with protein in virus or bacteria, making it lose the ability to spread diseases, especially hepatitis virus and poliovirus.

3.resveratrol

Grape contains a compound called resveratrol, which can prevent normal cells from canceration and inhibit the spread of malignant cells, and has a strong anti-cancer effect.

In addition, resveratrol has the functions of preventing atherosclerosis, regulating blood lipid, inhibiting platelet aggregation, reducing blood viscosity and enhancing immunity.

4. Proanthocyanidins

There is a strong antioxidant and anti-aging substance in grape seed called proanthocyanidins, which is dozens of times more effective than vitamin C and vitamin E.

brain

The small molecular structure of proanthocyanidins can penetrate the blood-brain barrier, provide and strengthen the antioxidant function in the brain, prevent the pathological changes and aging of brain cells, and may reduce the risk of dementia in the elderly.

boat

Strengthen the collagen fibers in the blood vessel wall, make the blood vessel strong and elastic, make the blood vessel healthier, and help to improve the poor venous circulation, such as varicose veins.

Prevent cholesterol in blood from accumulating on the blood vessel wall and reduce the risk of cardiovascular disease.

Reduce platelet aggregation, prevent vascular embolism and reduce atherosclerosis.

Vitamin B 12

Grapes contain vitamin B 12 with anti-pernicious anemia effect, especially red wine brewed from grapes with skins, which contains about vitamin B 12 per liter. 12 ~15mg. Therefore, drinking red wine often is beneficial to the treatment of pernicious anemia.

citrin

Modern pharmacological studies have proved that grapes also contain vitamin P. Oral administration of 15g grape seed oil can reduce the toxicity of gastric acid, and oral administration of 12g can achieve cholagogic effect, so it can treat gastritis, enteritis and vomiting.

flavonoid

Flavonoids contained in grapes are powerful antioxidants, which can resist aging and scavenge free radicals in the body.

tartaric acid

A large amount of fruit acid in grapes helps digestion. Eating more grapes properly can strengthen the spleen and stomach.

fructose

A large amount of glucose and fructose contained in grapes will be converted into energy after entering the body, which can quickly enhance physical strength and effectively eliminate physical fatigue. Therefore, eating some grapes when you are tired can improve quickly.

potassium

Potassium can protect the myocardium and keep the heart beating; It can help human body accumulate calcium, promote renal function and regulate heart rate.

calcium (Ca)

The calcium contained in grapes can calm the nerves.

magnesium

Magnesium is a protective factor for cardiovascular diseases, and magnesium deficiency is easy to cause coronary atherosclerosis.

manganese

Manganese can coagulate blood and synthesize cholesterol and insulin.

iron

Grape is the fruit with the most complex iron element, and it is a nutritious food for anemia patients. Eating grapes regularly is beneficial to neurasthenia and fatigue. After the grapes are dried in the sun, the contents of sugar and iron are relatively increased, which is a good tonic for children, women and people with physical weakness and anemia. Purple grape has high iron content, which can treat female dysmenorrhea and has certain curative effect.

tartaric acid

Grapes contain more tartaric acid, which is more helpful for digestion. Eating more grapes properly can strengthen the spleen and stomach, which is of great benefit to the body.

melatonin

Eating grapes helps you sleep. The researchers * * * tested eight kinds of grape juice and found that it may contain melatonin, a sleep-helping hormone. Melatonin is a substance secreted by the pineal gland in the brain, which can help regulate the sleep cycle and treat insomnia.

Salicylic acid, anthocyanin, tannin

Red grapes contain salicylic acid, anthocyanins and more tannins, which can dilute blood and prevent infarction and stroke.

A variety of minerals, protein and vitamins.

Grape contains minerals, protein, vitamins B 1, B2, B6, C and P, etc. , but also contains a variety of nutrients needed by the human body. Eating grapes regularly is of great benefit to neurasthenia and fatigue.