There's a lot of people that look like this but have never taken a single PED or drug in their life. One of my uncles has a very similar thing going on and he's never put anything in his body (HGH, roids, etc), he just works out like crazy, makes sure he eats well and is obsessed with martial arts.
I'm not saying GSP never took anything in his career or throughout his entire life but we can't just assume he did. Like I said, there's lots of people that looks similar to this and others that may look suspicious but yet they've never taken anything before.
Honestly, threads like this one are annoying as fuck. It's as if some of you guys want a fighter to be on something so you can talk shit about them. Actually, sometimes they aren't on anything and have never failed a test but people still accuse them and still talk shit about them.
It's pretty much like a never-ending circle of hate. If you're on something, you get shit on (for obvious reasons). If you're not on something, you just get accused and still shit on.
Either you're a cheater or you're a cheater. If you're not cheating, you're still cheating. Classic Sherdog, especially since USADA came in and now there's at least 1 thread every day or two about fighters using PED's (whether they've been busted or not).
I'm not directing this at you specifically, TS, because you didn't outright accuse him and come off as a complete asshole (like most fans), so.