Didn't Sosa also bulk up at a younger age than a lot of these guys? Like, when it would be more natural to do so. Yes. People don't really realize just how dirt poor Sosa was growing up and what kind of Craptastic diet he had as a result. Once he got to this country (and, more importantly, finally made some money) he was able to afford a stable diet and was introduced to a workout routine that is conducive to building body mass. Also, as TheMojoPin pointed out, Sosa was a notorious Gym-rat. oh, and on an unrelated note, this is on the front page of Yahoo: Baseball's steroid bombshell MLB's steroids report includes a big surprise: Roger Clemens. hahaha, yeah, BIG surprise.