I get at least one e-mail each day from a company selling an acai berry product. These ads claim amazing weight loss and also usually claim that celebrities endorse their product. Two celebrities that are often used in these acai berry weight loss ads are Oprah Winfrey and Rachael Ray. The truth is that the acai berry was briefly featured on their T.V shows and marketer took that and ran with it. The interesting thing is that they were featured on their shows to talk about the anti-oxidant effect of acai berry and not it's direct impact on weight loss.
Here's a video from the Better Business Bureau regarding acai berry and certain companies marketing practices.