Acai food supplement suitable for vegetarians vegans the acai berry is a rich purple palm fruit indigenous to the amazon rainforest for hundreds of years these small dark berries have been integral to the diet of native amazon people as a purple fruit acai berries naturally contain the purple pigments known as anthocyanins acai berries are highly nutritious with a unique flavour and texture acai food supplement suitable for vegetarians vegans the acai berry is a rich purple palm frui