Scientists at UCLA’s Olympic Analytical Laboratory turned their sophisticated analytical capabilities for testing athlete samples for performance-enhancing drugs to research examining the U.S. meat supply as part of a study led by Texas Tech. The study was designed to investigate concerns that residues of growth promoters used in meat production could potentially cause athletes to test positive.
The study, led by Dr. Bradley J. Johnson at Texas Tech University, and in collaboration with the United States Anti-Doping Agency (USADA), found that while some beef samples contained detectable levels of substances like ractopamine, trenbolone, and estradiol, all measurements remained well below the maximum residue limits established by regulatory authorities such as the FDA.
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“The findings suggest that positive tests resulting from meat consumption are highly unlikely when consumed in amounts consistent with typical daily diets,” the researchers concluded in their report. “This study reinforces the effectiveness of current regulatory practices in limiting growth promoter residues in commercial meat.”















