Barry Fudge, physiologist and former UK Athletics head of endurance, says Mo Farah's victories were due to meticulous planning, hard work and determination as opposed to "some magical drug or illicit aid". Mo Farah admitted performance enhancing supplement use minutes after denying it, says leaked Salazar probe report Mo Farah, Alberto Salazar and L carnitine Q&A: everything we know Mo Farah case raises concern over protection for athletes London Evening Standard The Standard Performance enhancing substance was procured from Switzerland for athlete Mo Farah SWI swissinfo.ch