So this ultra running hybrid athlete influencer (who recently admitted to taking a totally WADA banned performance enhancing drug that you can't even get a TUE for )is still on the #Cocodona250 #ultramarathon L carnitine can boost your endurance But give it time 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