That's exactly the sort of thing that I think should be banned. Particularly the meaningless terms like "improved health".

But that's almost impossible. If the law says that all statements made MUST be true (which it kind of already does, by the way), companies will exclusively use weasel phrases to avoid any lawsuit. Otherwise, when you're trying to sell phlaborivin and bill it as a cure for cancer, when you find the one patient that doesn't respond to treatment, you're screwed.

Anyway, what I'm saying is that saying true things is what we already require. Human nature will pervert that system and follow the letter of the law; that's the literal system we have now.