I believe that the FTC has said many times that a claim in advertising can be true, but misleading at the same time, depending on the way it's presented. Search

I believe that the FTC has said many times that a claim in advertising can be true, but misleading at the same time, depending on the way it's presented. Search for terms like "Truth In Advertising" or "Deceptive Advertising". All of this said, I think either the FDA or FTC should probably have a role here and IMO it's not Amazon's job to judge advertising claims.