Grapes from the grape family and grape genus, which are woody vine plants, are one of the world's oldest fruit tree species.

Grape branchlets are cylindrical, longitudinally ribbed, glabrous, or sparsely pilose. Leaves ovoid, panicles dense or dispersed, base branching. Fruit globose or elliptic. Flowering from April to May and fruit from August to September.

Grape plant fossils were found in Tertiary strata, indicating that they were widespread in Europe, Asia, and Greenland at that time. Grapes originate from temperate and subtropical regions of the Northern Hemisphere, namely North America, south-central Europe, and northern Asia.

All grape species in the world come from a common ancestor. It is separated into different areas due to the separation of continents and the influence of glaciers. After long-term natural selection, there are obvious differences among grape species, forming Eurasian populations, American populations, and East Asian populations. It is grown all over the world, and about 95% of the world's grapes are concentrated in the Northern Hemisphere.

Grapes not only taste delicious but also have high nutritional value. Ripe berries contain up to 10 to 30 percent of the sugar in the grape, mainly glucose. Grapes in a variety of fruit acids to help digestion, appropriate to eat more grapes, and can strengthen the spleen and stomach.

Grapes contain minerals calcium, potassium, phosphorus, iron, and a variety of vitamin B1, vitamin B2, vitamin B6, vitamin C, and vitamin P, but also contains a variety of amino acids needed by the human body, eating grapes regularly is of great benefit to neurasthenia, excessive fatigue.

The variety and ripeness of grapes affect the taste. Some grapes are sour, others sweet. In high-temperature weather, human metabolism, endocrine, and body temperature regulation dysfunction, eating some sour grapes, can strengthen the stomach and digestion. Can effectively relieve dry mouth, and loss of appetite.

Black grapes contain more minerals such as potassium, magnesium, and calcium than grapes of other colours. Most of these minerals exist in the form of organic acid salts, which can effectively maintain human ion balance. Regular eating of black grapes can effectively relieve neurasthenia, excessive fatigue, and other diseases.

Sweet grapes contain more sugar, and the main sugar is glucose. Easily absorbed by the human body. Purple grapes contain a lot of anthocyanins and flavonoids. Both of these substances are powerful antioxidants that fight the scavenging of free radicals in the body and have anti-ageing effects. Eating purple grapes regularly can reduce skin wrinkles.

Studies have found that grapes can prevent blood clots better than aspirin, and can reduce the level of serum cholesterol, reduce the cohesion of platelets, have a role in the prevention of cardiovascular and cerebrovascular disease. Daily consumption of a moderate amount of fresh grapes not only reduces the risk of cardiovascular disease but is especially beneficial to the health of those with ischemic heart disease and atherosclerotic heart disease.

Flavonoids in fresh grapes can "clean" the blood and prevent the formation of cholesterol plaques. The blacker the grapes, the more flavonoids they contain, but the better the heart protection is if the skins and seeds are eaten together.