heres a little info for those who hate long winded info, but yet need that info: Testosterone is usually and mainly produced in the MALE body from the age of 16-25 ( so those young men out there pumping themselves with it, it may work a little better, but you get it free ) as for BULK builders ( DECA ect ) think of them like a thousand brickies in your body ( a normal body has say 100 brickies ) and PROTEIN is their BRICKS, when you max it at the gym/home/wherever you rip the WALL in two and the GAP in the wall gets wider/longer/whatever, so it has to be filled with BRICKS ie
No1 PROTEIN whey,mixed meats,mammas milk (YUK ) and human flesh ( even yuckyer but not for the old HAWAII peeps ( they ate Captain Cook ) so the one thousand brickies build the wall back up double speed than normal ( as long as you have the BRICKS ie: PROTEIN to build the wall back up/plus widened gap ( muscle growth ).........
