Nice video. On a side note, while I'm not disagreeing with the premise of Jerry's information, the name of the blood test is creatinine, not creatine. Creatinine is a chemical waste product of creatine
Creatine may increase muscle mass and strength through an additional mechanism and not just by increasing the amount of energy-generating phosphate groups in the muscles. According to sports scientists at Stellenbosch University, South Africa, creatine increases the amount of the androgenic testosterone metabolite DHT [structural formula also shown below] in the muscles. The researchers report this in the Clinical Journal of Sport Medicine.