What makes the Nike Oregon Project's use of L carnitine a story? Oregon track & field rundown oregonlive.com PDF) Brain doping substances: prohibited or not in sports? Mo Farah: Doctor says L carnitine injection not recorded correctly BBC Sport With the number of supplements available, athletes subject to drug testing need to ensure they are taking banned substance free supplements. Sportsfuel Supplements NZ We tried legal doping, and this is what happened Cyclist