L Carnitine Injections for Weight Loss Prescription Weight Loss, Inc. Palmitoylethanolamide., I think all athletes should be familiar with this supplement. What Is L Carnitine? Benefits for Runners, Dosage & How It Works RunStrong Athletes are injecting WHAT? WHERE? If anything was to come to the surface, we would look at it and see if it is doping related, Wada director general Olivier Niggli said at PDF) The Inclusion in WADA Prohibited List is not Always Supported by Scientific Evidence: A Narrative Review