Blueberries are a small, blue-purple fruit that belongs to the genus vaccinium, which also includes cranberries and bilberries. The antioxidant and anthocyanin content of blueberries makes them particularly effective at reducing cognitive decline, supporting cardiovascular health, protecting the liver, and reducing liver fat buildup. Blueberries may also have a potential nootropic effect. They may also have a role to play in promoting the growth of nervous tissue and reducing neurological inflammation.
Blueberries contain anthocyanin, other polyphenols, and various phytochemicals which play different roles in the body. The genus Vaccinium has a circumpolar distribution with species being present in North America, Europe, and Asia. Many North American native species of blueberries are grown commercially in the Southern Hemisphere in Australia, New Zealand, and South American nations.