Meghan Trainor Attributes Dramatic Weight Loss to Biohacking Science

At the 2025 Billboard Women in Music event, Meghan Trainor showcased her significant weight loss and attributed her transformation to 'science' and biohacking techniques rather than weight-loss drugs like Ozempic. In conversations with Entertainment Tonight, she explained that her previous heavy cardio workouts led to inflammation and that she has since shifted her focus to weightlifting and advanced health strategies, including NAD therapy. Trainor expressed a desire to 'age backward' through various methods, stating, 'I just learned about the NADs, and I’m all in.' She also addressed speculation about her weight loss, confirming the use of Mounjaro, a medication for weight loss, after her second pregnancy. Despite the attention on her physical changes, Trainor voiced her frustration over the focus on her body rather than her musical achievements. Overall, she emphasized her ongoing journey toward better health for both her children and herself.