Have you tried acai (pronounced ah-sigh-EE) berries? On their own they are very tart and you'll most likely have tried them in a bowl where they are sweetened with fruit juice and whipped into a yogurty texture.
If you are shopping for them you'll want to buy them frozen as they spoil very quickly or in a powdered form.
Some studies show that acai fruit pulp is even richer in antioxidants than cranberries, raspberries, blackberries, strawberries, or blueberries. They are also rich in Omerga-3 fatty acids.
