Supplement Contamination Caused Positive Test Results
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The United States Equestrian Federation (US Equestrian) said it appreciates the efforts made by Cargill to determine how two horses ridden in a Fédération Équestre Internationale (FEI) competition by US Equestrian members Adrienne Lyle and Kaitlin Blythe were exposed to ractopamine, a substance banned by the FEI.
While ractopamine is legal in the United States for use in swine, turkey, and cattle for building muscle and size, the medication is included on the FEI Prohibited Substances. It has been outlawed altogether in 160 nations, including the European Union, Russia, and China due to its controversial and adverse effects in cattle and swine.
The horses had consumed a Cargill-manufactured product, Progressive Nutrition Soothing Pink, a gastric nutritional supplement that was found to contain ractopamine. The substance was not disclosed on the ingredient list due to trace amounts of the substance being present in one of the ingredients. Cargill had samples from the same batch as the horses consumed tested, and those samples tested positive as well.
The FEI imposed a provisional suspension on the riders and the horses as required under the FEI Equine Anti-Doping and Medication regulations. The riders and owners sought relief from the suspension, which the FEI Tribunal granted by lifting the riders’ suspensions. The Court Arbitration of Sport also ruled that the horses’ provisional suspension should be lifted, effective May 8
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