Can Weight Loss Medicines Be Considered Doping in Sport?

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GETTY IMAGES via BBC "The only opponent I couldn't win was the weight," said Serena Williams to Oprah Winfrey's podcast last year. "I literally exercised eight hours a day at the academy and could never lose a kilo. In fact, my feeling is that I can even gain weight." During the interview, Williams told me that he started taking a GLP-1 medication, because I had difficulty losing weight after his son's birth. In an interview with Vogue magazine,…