Acai berries are a small fruit harvested from acai palm trees, which are mostly native to northern South America. Acai berries themselves resemble grapes and are actually quite low in sugar, containing close to 0 grams per 100-gram serving..
According to the Mayo Clinic, acai berries are higher in antioxidants than other popular berries such as cranberries, blueberries and strawberries. They’re also high in fiber, calcium and vitamin A. Acai berries have been widely marketed as a “superfood” due to their extremely high antioxidant and phytochemical content. However, the National Institutes of Health states that “very little research has been done in people on the health effects of acai products.”