Fighters are not using them to raise them to natural levels. They are using them ton raise their testosterone to well above normal levels.
Originally Posted by H0SS
What is allowed under athletic commision rules is 6 times the testosterone ratio of an average person.
It was revealed earlier today that Alistair Overeem's failed pre-UFC 146 drug screen revealed his Testosterone/Epitestosterone levels to be at a ratio of 14:1, whereas a normal man would possess a ratio of 1:1. These results were stated by Keith Kizer, commissioner of the Nevada State Athletic Commission. Kizer revealed earlier this week that Overeem's levels were higher than 10:1, and that any levels shown to be above 6:1 are considered a violation.
"If a man with no arms and a man with no legs started learning karate, the same light bulb would appear over every head in Japan. That’s right: Glue them together and see if it can kill a panda."