Mo Farah Faces Heat For His Stand on L carnitine injections Ahead of the 2014 London Marathon Running Shoes Guru Mo Farah's old samples 'may be retested' Farah caught up in controversy over 2014 London Marathon injection Knysna Plett Herald Amazon.com: iSatori L Carnitine LS3 3000, Triple Blend Liquid L Carnitine Supplement, with Acetyl & Tartrate, Stimulant Free Energy, Low Calories, Sugar or Gluten, Keto Friendly, Lemon Lime (32 Servings) : Health & Household NOW Foods L Carnitine Liquid with Vitamin B12 Support Swanson Vitamins In 2015 US Anti Doping Agency investigators interviewed UK Athletics officials and Sir Mo Farah in London. , Asked multiple times whether hed had injections of the legal supplement L carnitine ahead