yes, an adolescent just starting to work out and eat right. but these were already national level bodybuilders.
there is no way to know who used what when, but there is certainly plenty of circumstantial evidence that means that it was possible that top bodybuilders were using in the 1940s.
I disagree , there would at least be anecdotal evidence of guys who did use , are who knew guys were using , but again there are no such stories until Ziegler and the guys at York , from all the research it doesn't look like drugs made into the West coast scene until 1960 and then they say the guys really started to get bigger
I mean the Russians were using it 1954 for weight lifters and it wasn't until then Ziegler learned of it and went to work at Ciba