Winfrey and Dr. Memhet Oz have filed suit against 40 companies either selling açaí or related products, with their name endorsements on them.
According to the complaint, such companies are "fabricating quotes or falsely purporting to speak in Dr. Oz's and/or Ms. Winfrey's voice about specific brands and products that neither of them has endorsed."
"Consumers should be aware that neither Oprah Winfrey nor Dr. Oz are associated with nor do they endorse any açaí berry product, company or online solicitation of such products, including MonaVie juice products," a statement read on Winfrey's Web site. "Neither Oprah nor Dr. Oz are associated with nor do they endorse any specific resveratrol product, company or online solicitation of such products. Any companies that misrepresent their affiliation are making false claims."