In 2015, Brown used his Facebook page to promote AdvoCare, a company that uses multi-level marketing to sell nutrition, weight-loss, energy, and sports performance products. He said that he had lost 30 pounds in 24 days on the regimen. He later added that neither he nor his wife were "paid spokesrepresentatives for Advocare," although he was confirmed as being an independent representative of the company. Citizens for Responsibility and Ethics in Washington has requested a Federal Trade Commission investigation of Brown's non-disclosure of financial interest in AdvoCare.