UK Anti-Doping issued a warning today: athletes who compete in the London 2012 Olympic Games run the risk of testing positive for the banned substance clenbuterol if they eat liver. U.K. Anti-Doping warns: "Athletes should be wary of consuming large quantities of liver."
Tainted meat has been at the forefront of anti-doping cases this year, namely the case of Alberto Contador, the three-time Tour de France champion who claims he ingested clenbuterol by way of tainted beef. A decision on Contador's case should be rendered soon by the Court of Arbitration for Sport.
So far, the World Anti-Doping Agency has not altered it's stance on clenbuterol, therefore, athletes who ingest it by way of tainted meat are still guilty of an anti-doping rules violation. For more on the warning click here.