Celebrity television host Dr. Mehmet Oz testified before Congress Tuesday to help "drain the swamp" of marketers using his name to peddle weight-loss pills.
Senate Chairman Claire McCaskill, D-Mo., scolded Oz for claims he made about weight-loss supplements from the Pure Green Coffee Company on his show, "The Dr. Oz Show."
"I am concerned that you are melding medical advice, news, and entertainment in a way that harms consumers," McCaskill said.
Sen. Richard Blumenthal, D-Conn., asked Oz if he would be willing to publish a list of brands he feels work, as opposed to suggesting that a general supplement may work for weight loss.
"I've been actively looking at that," Oz replied. "With your suggestion and support, I think I'm going to do it, and I think it'll do a lot to drain the swamp that we've created around this area."
Americans spend $40 billion a year on weight loss products. Lawmakers are concerned that the "Dr. Oz" effect is misleading to consumers.
Oz acknowledged that while his language has been "flowery," he has never endorsed a specific company or brand.
"I don't sell anything. If they see my name, my picture, or any part of the show involved in an advertisement - do not buy the product," he said.
Meanwhile, top public health officials are calling on state and federal government officials to recognize obesity as a disease.
Former U.S. Health and Human Services Secretary Tommy Thompson is urging Congress to pass legislation that would require Medicare to cover obesity medicine for seniors.