2. There will be a layer of fruit powder on the blueberry skin. The thicker the fruit powder, the fresher the fruit. Fruit powder is made of fructose, which is beneficial and harmless.

Blueberry is called the best fruit for human beings. Blueberry juice can prevent gastric cancer and colon cancer. In addition, blueberries can also benefit human immunity, enhance people's memory ability, improve the brain and reduce the incidence of Alzheimer's disease.

4. Blueberry fruit is rich in nutrition, which can prevent brain aging, strengthen the heart, resist cancer, soften blood vessels and enhance human immunity.

5. Blueberries are rich in benzoyl, anthocyanin and sodium benzoate, which can activate the retina, enhance vision and prevent eye fatigue. It is also one of the five healthy fruits recommended by FAO.