“On January 4, 2007 the U.S. Federal Trade Commission announced that it fined Goen Technologies Corp., the makers of TrimSpa, $1.5 million for making unsupported claims in advertisements. The FTC also fined the makers of Xenadrine EFX, CortiSlim, and One-A-Day WeightSmart for similar claims.”
Source: TrimSpa - Wikipedia
I heard about this on the news radio I listen to, but was only able to find a story about it in Wikipedia.