According to the United States Department of Agriculture (USDA), one 3-gram teaspoon of acai berry powder:
Acai berries are rich in fatty acids, especially oleic, palmitic, and linoleic acids.
Although acai berries 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. The antioxidant effects of acai berries have largely been attributed to phenolic compounds.
Antioxidants in the body are believed to help protect against various diseases as they can neutralize oxidative damage caused by environmental stressors, such as pollution.