I'm surprised it isn't even higher. TikTok is full of zoomers who haven't even turned 18 yet, and they're already abusing steroids and SARMs.
EDIT: I just remembered this article:
https://www.theguardian.com/environment/2018/apr/24/why-ther...
> But more surprising was the amount of hordenine and ostarine – described by the programme-makers as often being found in gym supplements, which made up more than half of the pharmaceuticals found.
Ostarine is a SARM, and supposedly there was more of that than cocaine or MDMA residue in a London sewer "fatberg."