Lindsey Duncan, who has appeared on numerous TV shows as “Dr. Duncan” to promote diet supplements, agreed to pay $9 million in refunds to consumers to settle charges that he and his company “deceptively touted the supposed weight-loss benefits of green coffee bean extract,” the Federal Trade Commission said on Monday.

Duncan first appeared on “The Dr. Oz Show” in 2012, he was introduced as a “naturopathic doctor” and a certified nutritionist. On the show he described himself as a “celebrity nutritionist,” and claimed that the green coffee bean extract was the “new” supplement everyone in the medical and the weight-loss community was all talking about. According to the agency, he had no evidence that the supplements he was selling could be of any benefit to users.

“Lindsey Duncan and his companies made millions by falsely claiming that green coffee bean supplements cause significant and rapid weight loss,” Jessica Rich, director of the FTC’s Bureau of Consumer Protection, said in a statement.

In October, Duncan’s home state of Texas filed charges against him for, among other things, claiming he was a doctor. And in June, Dr. Mehmet Oz was blasted on Capitol Hill for promoting such products.

According to the claim made by Duncan and his company; Pure Health and Genesis Today, the supplements would lead users to drop 17 pounds and 16 percent of their body fat in three months without doing any exercise or dieting. But according to the FTC his claims were not backed up proper clinical study. His product turned out to be one among the many such bogus weight loss supplements.

According to the  FTC said, his appearance on the Dr. Oz Show was orchestrated to take advantage of the big marketing push products discussed on the show enjoy and included key phrases that consumers could use to find the product online. Afterward, Duncan and his companies used the hype to try to get Walmart (WMT) and Amazon (AMZN) to carry the supplements.

 

Sales in the tens of millions of dollars followed, the FTC said. Now, Duncan and his companies are prohibited from making such weight-loss claims without the support of “two well-controlled human clinical tests.”

Duncan must pay $5 million in the next two weeks toward the $9 million total due to consumers who purchased the supplements.