Serena Williams' frank Instagram post claiming her body "needed" weight-loss drugs has left one new mother feeling "let down" and personal trainers concerned as to the impact the news will have on their clients. The former tennis champion, 43, found losing weight a struggle after the birth of her first child, daughter Alexis Olympia, in 2017, and similarly struggled after the birth of her second daughter, Adira River, in 2023. It was this frustration that saw Serena start injecting the weight-loss drug GLP-1 s six months later in 2024. Watch her explain her decision in a clip below. WATCH: Serena Williams explains her decision to take GLP-1 injections

"I couldn’t disagree more with Serena's statement about GLP-1s being what her body needed after having kids," Hattie MacAndrews tell

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