ALLNUTRITION ACAI or Acai berry is a fruit of the palm tree in the Amazon Rainforest. It is very similar to the appearance of the well-known American blueberry, but differs in taste and substance content. The fruit has been used in South America for hundreds of years and has only recently appeared in Europe. They can be described as real ‘nutritional bombs’. Nowadays, acai berries are also a hit in European dietetics.