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How Did Meghan Trainor Lose Weight? Inside Her Exercise Plan, Mounjaro and ‘Huge Lifestyle Changes’

Meghan Trainor has stunned fans with her slimmer figure in 2025, but how did she lose weight? The singer has been candid about Mounjaro use, exercise and more.

And I’m so glad I did because I feel great,” Meghan wrote in a March 31, 2025, Instagram post after seeing and hearing comments about her body at the 2025 Billboard Women in Music event. Meghan and Daryl both decided to try Mounjaro because research found that it had fewer side effects than other weight loss drugs, such as Wegovy and Ozempic. Meghan and Daryl have worked out together for years, and their various gym routines have been shared on Instagram by personal trainers Rebecca Stanton and Bella Maher.

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