A majority of the players tested at the Under-17 World Cup in Mexico had traces of clenbuterol in their bodies because they ate contaminated meat, FIFA said Monday.
Tests in Germany after the tournament revealed players from 19 of the 24 teams had adverse findings of the banned anabolic agent in 109 of 208 urine samples.
FIFA medical officer Jiri Dvorak called the results "highly surprising" but insisted that teenage soccer players were not cheating.
"It is not a problem of doping, but a problem of public health," Dvorak told reporters, adding that none of the players were harmed or put in any danger.
FIFA and the World Anti-Doping Agency declined to prosecute any cases because the weight of evidence pointed to contamination.
Mexican authorities have acknowledged the country has issues with feeding banned steroids to livestock.However it does make me wonder of the long-term consequences of all those steak tacos I ate while living in Mexico. Probably best not to think about it too much.