Blueberries are one of the few fruits native to North America. Native Americans used the berries, leaves and roots for medicine and used the fruit as a fabric dye.
The U.S. Department of Agriculture says that blueberries are an excellent source of essential nutrients, such as vitamins C and K and manganese, and a good source of dietary fiber. In addition, blueberries are abundant of phyto-components, such as flavonoids, which are responsible for berries’ antioxidant and anti-inflammatory activities. Blueberries and Health : USDA ARS See more.