Injecting B12 is something my training partner is a firm believer in... He does diet, supplementation, training recommendations for many people in show preparation... Simply put, B vitamins help with the metabolization of proteins, carbs, and fats... so with some extra it might help speed up the process... Some don't believe this... but with as many people as he led to win shows, I am going to follow it for my next show. Hope this helps...
and I have also heard of a new injectable multivitamin that many bodybuilders are raving about.... there has got to be something behind all of this...
dieslgrl