The superfood also aids weight loss. According to a study by National Institute on Aging, “Pulp from the acai berry had the ability to reduce the negative effects of a high-fat diet.” However, the weight loss theory is still under a debate. “Acai is a nutrient-rich source of antioxidants, much like many other fruits, but there is nothing magical about the fruit to cause weight loss," says David Grotto, RD, author of 101 Foods That Could Save Your Life.