Meghan Trainor Shares the ‘Secret’ to Her Dramatic Body Transformation

Meghan Trainor is revealing the “secret” behind her stunning body transformation and it turns out “Trainor” is “Training”.

The “All About That Bass” singer stepped out at the 2025 Billboard Women in Music event on Saturday (March 29) and opened up to Entertainment Tonight about her health and fitness journey. Trainor credited “science” as the key to her dramatic new look, sharing how she’s experimented with various approaches and discovered techniques she hadn’t known before. One major realization? She had been exercising the wrong way for her body type, according to People.

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“I was working out so incorrectly for so long,” Trainor admitted. “I was running and doing cardio, but my body was always inflamed.”

Now, the pop star has revamped her approach, tailoring her workouts and focusing on what works best for her body. She’s also embraced “biohacking” to slow down the aging process, guided by insights from medical professionals.

“I’m all in for anything that helps me age backward,” she said. “I just learned about [food supplement capsules] NADs, and I was like, ‘Make me Hailey Bieber, I’ll take it!’ I love having doctors explain these things to me. I’m trying everything.”

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Trainor recently showcased her enhanced fitness results in a series of striking Instagram photos, which left fans inspired. She’s previously shared her passion for weight lifting, describing how she hadn’t realized just how much it could “change my life” for the better.