1. The content of anthocyanin in pitaya is high. Anthocyanin is an effective antioxidant, which has the functions of antioxidation, anti-free radical and anti-aging, and also has the functions of inhibiting brain cell degeneration and preventing dementia.

2. Pitaya is rich in plant albumin, which is not common in fruits and vegetables. This kind of active albumin will automatically combine with heavy metal ions in the human body and be excreted through the excretory system, thus playing the role of detoxification. In addition, albumin has protective effect on gastric wall.

3. Pitaya is rich in vitamin C, which can eliminate oxygen free radicals and have the effect of whitening skin.

4. Pitaya is a low-energy and high-fiber fruit, which is rich in water-soluble dietary fiber, so it has the effects of losing weight, lowering cholesterol, moistening intestines and preventing colorectal cancer.

5. The iron content of pitaya is higher than that of common fruit. Iron is an indispensable element for producing hemoglobin and other iron-containing substances, which plays an important role in human health.

6. The sesame-like seeds of pitaya can promote gastrointestinal digestion.

7. The juice of the fruit and stem of pitaya showed positive effects on tumor growth, virus infection and immune response inhibition.