I can say he isn't on anything without haveing to even like him. But, Cena is a hard guy not to like in real life. I worked with him for 3yrs, and watched him grow in front of me. I had him over afew times and we had some good talks. He considered useing when he thought he MIGHT make the pro's(football). But, I suggested he not both, seeing he was about average size for a LB or FB. He agreed, and I was one of the 1st to know when he inked the WWE contract. He was scared, he said "I don't wana use anything. But I think Vince makes you." As it turned out, i saw him 3 months later and he was a whole 1lb bigger, but more defined.
He said if Vince catches you on anything, your gone. He also said the lower card guys get tested most. And we have seen proof of this. The late Eddie Gurrero was cut by WWE for roids, on top of other stuff. A-Train,Billy Gunn, half of the former WCW guys. All because of roids. I'm sure HHH could use anything and not get fired, he is Vince's son-in-law. But he is about the only guy who might excape it.
Cena eats and trains harder than the guys who are on stuff. He just piles on plates and groans till he finishes a set. He use to carry a scale with him to work(when we worked at Golds Together), and measured and counted everything. That scale and his calorie/fat/carb/protein book went everywhere with him as well as his supplements. 1st was amino's, he took them for over 4yrs with his main carb being pasta(figures he played footbal at the time...energy and mass). Then he was taking MuscleTech supplements, as he still takes today.
I watched him out work a very well jucied HHH in 99. Right at Golds set for set he went hevier then HHH. He always did with everyone. Cenea isn't a user of anything more than common sence and a ton of knowlage from many bodybuilders and wrestlers about diet and training. I could talk to him in 5min, and he would tell me 100% if he is on stuff. I can assure you the answer would be a loud and likely upset I asked reply.
Also, Cena isn't that vascular, I'm much more vascular than him at 6' 185lbs and NEVER touched anything in my life. Cena also dosent have a GH jaw, look at his younger pics(say aroud 10-15yrs old) he has ALWAYS had a very defined square jaw. Now look at a very obvious GH, and lord knows what else user...HHH. He has no tell tale roid look, except he is starting to not use as much with his wife being preg. So, he is bloating, and his muscle is looseing it's desity. The guy even has no real MPB look...then agian with his salary, like he can't afford fake hair.
HHH and Cena aren't paid as well as you think. HHH took a pay cut seeing he is married to Vinces daughter...he don't need cash now. And Cena is in the top 10 in the WWE, but isn't #2. You wana look at the top 5, look at Chris Benoit, Lashley(yep, Vince had to pay to steal him from TNA) and Orton. You do know Vince was in a bidding war for Mr. Randy Orton for 2yrs?