Meh, you see commercials for all kinds of medicines in the US. There's more being produced than your average general practitioner can keep up with, so the manufacturers appeal directly to consumers.

Given how ineffective it is once you stop, I'm personally expecting it to become a relatively short lived fad. Insurance companies won't cover it if it truly doesn't improve health outcomes long term (throwing money down the toilet) and people will learn to not pay out of pocket for it.

There's a reason insurance companies are loath to cover it for obesity now without prior authorization, which usually requires you seeing a specialist who has ruled out the usual suspects (nutrition and exercise changes).