Advertising of worthless nostrums to prevent or cure illnesses is common. Often, it consists solely of anecdotes, but sometimes it is bolstered by statistical sleight of hand. Don't be fooled, because your health and your money may be in jeopardy.
The ubiquitous, on-screen advertising about prescription drugs is highly structured by the FDA. That helps explain why the voice-over's claims and cautions are delivered so quickly at the end of the commercial.