Strength Coach Chris Grayson , trainer of many athletes including high level martial artists gives his opinions on training and nutrition, supplements and performance enhancing drugs.
Urban Strength Institute facebook page https://www.facebook.com/usichicago/?pnref=lhc
Urban Strength Institute Website: http://urbanstrengthinstitute.com/
Redzovic Jiu Jitsu : http://chicagojiujitsu.com/
Charles Poliquin (Strength Sensei) : https://www.strengthsensei.com/charles-poliquin-arm-routine-1/