The 5-Step Formula: How Meghan Trainor Lost 60 Pounds Using Mounjaro, High-Protein Diet, And Strength Training
Meghan Trainor’s recent body transformation has captivated fans and media alike, revealing a stunning 60-pound weight loss that she attributes to a comprehensive, post-pregnancy health overhaul. As of late 2025, the Grammy-winning singer has been candid about the specific, multifaceted approach she took, which included a strict diet, intense strength training, and, notably, the use of the prescription weight-loss medication Mounjaro.
This journey, which began after a challenging first pregnancy, is far more than a simple celebrity diet; it’s a story of addressing health issues like gestational diabetes and committing to a sustainable, high-protein lifestyle alongside her husband, Daryl Sabara. Her transparency offers a fresh, current, and honest look into the efforts required for such a dramatic and healthy change.
Meghan Trainor: A Quick Biography and Profile
Meghan Elizabeth Trainor is an American singer-songwriter and television personality known for her catchy pop hits, often blended with doo-wop and R&B influences. She rose to international fame with her 2014 debut single, "All About That Bass."
- Full Name: Meghan Elizabeth Trainor
- Date of Birth: December 22, 1993
- Hometown: Nantucket, Massachusetts, U.S.
- Spouse: Daryl Sabara (m. 2018)
- Children: Son Riley (b. February 8, 2021) and Son Barry (b. 2023)
- Career Highlights: Grammy Award winner for Best New Artist (2016), multi-platinum selling artist, and a judge on the reality competition show The Voice UK.
The Catalyst: Gestational Diabetes and Post-Pregnancy Health
Meghan Trainor’s decision to embark on a serious weight loss and health journey was not solely about aesthetics; it was driven by a significant medical diagnosis. During her first pregnancy with her son, Riley, the singer was diagnosed with gestational diabetes.
This health scare served as a major turning point, initiating a commitment to a healthier lifestyle that extended long after the birth of her child.
Shedding 60 Pounds: The Mounjaro Factor
In a move toward full transparency that is rarely seen in celebrity health interviews, Meghan Trainor and her husband, Daryl Sabara, revealed that they both used the prescription medication Mounjaro (tirzepatide) to aid in their weight loss following the birth of their second child, Barry.
Mounjaro, a GLP-1 receptor agonist, is primarily approved for type 2 diabetes but is often used off-label for weight management. Trainor gave a "shoutout" to the drug, noting that she was "so glad" she used it to help her after her second pregnancy.
However, it is crucial to note that she credits the medication as a tool, emphasizing that it was combined with a strict diet and rigorous exercise regimen, not used as a standalone solution.
Meghan Trainor's Diet and Nutrition Secrets
The core of Trainor’s sustained weight loss—a total of 60 pounds—is rooted in a radical shift in her eating habits.
Focus on High-Protein and Clean Eating
Trainor’s diet is centered around clean eating and a significant increase in protein intake. A high-protein diet is essential for satiety and maintaining muscle mass, especially when on a GLP-1 medication like Mounjaro.
She made a conscious effort to prioritize home-cooked meals and practice portion control, a key strategy for managing calorie intake and ensuring she was fueling her body correctly.
Eliminating Alcohol
One of the straightforward, yet impactful, changes Trainor made was cutting out alcohol completely. Eliminating empty calories from alcohol can significantly contribute to a calorie deficit and overall better health, especially for new mothers focused on clean living.
The Workout Plan: Strength Training with Bella Maher
The physical component of Meghan Trainor’s transformation is as important as the dietary and medical changes. She has been working closely with fitness coach Bella Maher of Malibu Bodies, who has publicly shared the singer's before-and-after photos.
Three Days a Week of Intense Strength Training
Trainor’s exercise routine is not focused on endless cardio; instead, she prioritizes strength training, committing to intense workouts three times a week.
Her coach, Bella Maher, stressed the critical role of weights in the journey, particularly when a patient is using GLP-1 drugs like Mounjaro. Strength training helps prevent muscle loss that can sometimes occur with rapid weight reduction.
A Couple Who Trains Together, Stays Together
Adding a unique layer to her fitness commitment, Trainor’s husband, Daryl Sabara, is her consistent workout partner. The couple strength trains together, which provides accountability and mutual support, making the rigorous schedule more manageable.
Trainor has also shared a personal fitness goal: she is actively "trying to grow my butt back" through targeted strength exercises after her weight loss, showing her focus on body recomposition rather than just scale weight.
Addressing the Critics and Maintaining the Change
Despite the positive changes and her open discussion about her health, Trainor has faced criticism over her dramatic transformation, particularly the use of a weight-loss drug. The singer has been vocal about "clapping back" at the "nasty comments" she has received, defending her decision as a matter of health and personal choice.
Her journey underscores a vital lesson: weight loss, especially significant change, is often a complex process influenced by health conditions, personal choices, and medical tools. By combining the metabolic support of Mounjaro with the foundational pillars of a high-protein diet, clean eating, and dedicated strength training, Meghan Trainor has achieved a healthy and sustainable result that extends far beyond her initial pregnancy health challenges. Her commitment, supported by her husband and trainer Bella Maher, serves as a powerful testament to the multifaceted nature of true body transformation in the public eye.
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