1. Reduce blood lipids: Grapes contain certain flavonoids that can reduce cholesterol in the human blood, reduce the deposition of lipids on the walls of the blood vessels, reduce blood lipids, and prevent the occurrence of cardiovascular disease.

2. Promote digestion: grapes are rich in pectin, which can increase intestinal peristalsis and promote the digestion and absorption of food.

3. Antioxidant: Grapes are rich in polyphenols, which have a good antioxidant effect, and can protect human cells from free radical damage, preventing the occurrence of cancer and other diseases.

4. Improve sleep: Grapes contain a certain amount of melatonin, which can regulate the body's biological clock and improve sleep quality.

5. Supplemental Nutrition: Grapes are rich in vitamins, minerals and other nutrients, which can enhance the body's immunity and prevent the occurrence of disease.

Dosage of grapes:

1. Adults are suitable for consumption of 100 to 150 grams each time, not more than 500 grams per day.

2. For children, it is suitable to consume 50 to 100 grams each time, not more than 300 grams per day.

3. Grapes contain a certain amount of fructose, diabetics should eat in moderation, not more than 50 grams per time.

4. Grapes contain a certain amount of acid, patients with excessive stomach acid or gastric ulcers should consume a small amount of food or not eat.

5. Elderly people, pregnant women, lactating mothers and other groups of people should be careful to eat, diet should pay attention to balanced.