Blueberries are a small, blue-purple fruit that belong to the genus vaccinium, which also includes cranberries and bilberries.
Blueberries are a popular food and frequently supplemented. 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 have been found to improve cognition in people undergoing cognitive decline, but there is also some rodent evidence that suggests blueberries can improve cognition in healthy young people as well. They may also have a role to play in promoting the growth of nervous tissue and reducing neurological inflammation.
Blueberries can be eaten or supplemented through blueberry powder. Isolated anthocyanins are also an effective supplement. Blueberries are both a food product and dietary supplement.