1. Helps to eliminate fatigue: Grape oolong tea is rich in vitamin C and tea polyphenols, which can promote metabolism and help the body eliminate fatigue.

2. Protect the heart: Tea polyphenols in grape oolong tea have antioxidant effect, which can reduce the risk of heart disease.

3. Lowering cholesterol: Studies have found that tea polyphenols in grape oolong tea can lower the cholesterol content in the body, thus reducing the risk of heart disease.

4. Improve digestion: Grape oolong tea contains certain theophylline and caffeine, which can stimulate the secretion of gastric juice and help digestion.

5. Improve immunity: Vitamin C in grape oolong tea helps to improve human immunity and reduce the risk of infection.

6. Lose weight: Studies have found that tea polyphenols in grape oolong tea can promote the decomposition and metabolism of fat and help to lose weight.

7. Cancer prevention: Polyphenols in grape oolong tea can inhibit the growth of cancer cells and prevent the occurrence of cancer.