Acai berries are a grape-like fruit native to the rainforests of South America, harvested from acai palm trees. They are about 1 to 2 centimeters in diameter and a deep purple color. The seed constitutes about 80 percent of the fruit, and the taste of acai berries has been described as a blend of chocolate and berries, with a slight metallic aftertaste. Acai berries contain antioxidants that may help boost heart health, improve memory, and protect against cancer. They are available dried, frozen, as juice, as powder, and in other forms. Here are some key things to know about acai berries:

• Acai berries are rich in fatty acids, especially oleic, palmitic, and linoleic acids. Although they contain very little total protein, they do contain 19 amino acids, as well as several sterols, including campesterol, stigmasterol, and beta-sitosterol.
• The phytochemicals in acai berries include mainly anthocyanins and proanthocyanidins. Acai berries contain more antioxidants than other commonly eaten berries. They also are high in fiber and heart-healthy fats.
• Acai berries have a higher healthy fat content than most berries, which helps to keep a high level of satiety. They also have pits, which are usually large enough to make up as much as 80% of the berry itself.
• Acai berries have been marketed as a superfood that can help reverse aging and aid with weight loss, but there is little scientific evidence to support these claims.
• Acai berries are processed into a pulp before eating. They have an earthy taste that’s often described as a cross between blackberries and unsweetened chocolate. Fresh acai berries have a short shelf life and aren’t available outside of where they are grown. As an export, they are sold as a frozen fruit purée, dried powder, or pressed juice.

In summary, acai berries are a nutrient-packed fruit that are high in antioxidants, fiber, and heart-healthy fats. They are available in various forms and have an earthy taste that is often described as a cross between blackberries and unsweetened chocolate. While they have been marketed as a superfood that can help with weight loss and anti-aging, there is little scientific evidence to support these claims.