The book has been the focus of much controversy since its publication, with widespread allegations of fraud. The New York State Consumer Protection Board issued a warning in 2005 that the book "does not contain the 'natural cures' for cancer and other diseases that Trudeau is promising." It asserted that "Trudeau is not only misrepresenting the contents of his self-published book, he is also using false endorsements to encourage consumers to buy "Natural Cures "They" Don’t Want You to Know About."" The Board also alleged that Trudeau was selling the consumer's contact information to other marketers without their consent and hitting purchasers with unauthorized charges.