I'm pretty skeptical on the science of it. For one thing, her opponents have all said that she was the strongest person they've ever gone up against. For another thing, legendary female bodybuilders such as Iris Kyle, Bev Francis and plenty of other top-level women bodybuilders who have taken steroids for years and years are still way, way, way weaker than 99% of amateur male bodybuilders and 100% of successful amateur male bodybuilders. And I know they take all sorts of estrogen blockers and such.

As far as testosterone production, all women produce testosterone, just not at the same level of men. And its not the only factor in muscle development. You've got stuff like myostatin, for example, the protein that regulates muscle growth, etc.

Oh, and state athletic commissions are the most corrupt institutions in sports. Nothing to trust or respect, really. Heck, Japanese combat sports are much more strictly regulated and they don't have any state athletic commissions. Just serious self-regulation.