Sensa charged $59, plus shipping and handling, for a one-month supply of the powder. The powder was supposed to be sprinkled on food to make users feel full faster, so they ate less.
But the company failed to disclose that some consumers were paid for their endorsements, the commission said. The F.T.C. also took aim at Adam Goldenberg, the chief executive of Sensa, and Dr. Hirsch, who conducted studies on the product but whose findings “were not supported by scientific evidence.”
The commission imposed a $46.5 million judgment on the company, which sold $364 million of Sensa in the United States from 2008 to 2012. But the company will remit little more than half the settlement amount “due to their inability to pay,” officials said.