China Cleared Swimmers in Doping Dispute, Citing Tainted Burgers
New York Times
Two Chinese athletes, one of whom was named to the Olympic team in Paris, tested positive in 2022 for a banned steroid. China blamed contaminated food, as it had after previous positive tests.
https://www.nytimes.com/2024/07/30/us/politics/china-swimmers-doping-food.html