Camu camu, a small yet powerful berry from the Amazon rainforest, could be useful in treating non-alcoholic fatty liver disease (NAFLD), recent research suggests.juerginho/Shutterstock "When we compare camu camu versus placebo, [there's more than] a 15 percent difference in your liver fat in only 12 weeks," André Marette, a medical professor at Laval University in Quebec and the lead author of the study, told The Epoch Times in an interview.