One is a dwarf shrub, which is short and wild, with small particles and rich in anthocyanins; Secondly, artificially cultivated blueberries can grow to 240cm high, with large fruits and full pulp, which improves the edible taste of wild blueberries and enhances the absorption of anthocyanins by human body. There are more than 400 kinds of cranberries, distributed all over the world, mainly produced in the United States, also known as American blueberries. The wild blueberries in China are mainly produced in Changbai Mountain, Daxing 'anling and Majiang area in Guizhou. Recently, Majiang Blueberry Area in Guizhou has become the second largest factory area in China, which has made many contributions to local employment and bred many blueberry enterprises, including Guizhou Kaiyuan Spring Wine Industry and so on.
Blueberry fruit is rich in nutrition, which has the functions of preventing brain aging, protecting eyesight, strengthening heart, resisting cancer, softening blood vessels and enhancing human immunity.
Among them, because blueberry is rich in anthocyanins, it has the effects of activating retina, enhancing vision and preventing eyeball fatigue, which has attracted much attention. It is also one of the five healthy fruits recommended by FAO. Moreover, according to the research of scientists in the United States, Japan and Europe, regular consumption of blueberry products can obviously enhance vision and eliminate eye fatigue. Medical clinical reports also show that anthocyanins in blueberries can promote the regeneration of rhodopsin in retinal cells, prevent myopia and improve vision.