Everyone remembers 2014. You couldn't walk into a grocery store or turn on a car without hearing that upright bass pluck and Meghan Trainor’s sugary voice telling us she was bringing booty back. She became the unofficial face of the body positivity movement almost overnight. But lately, the conversation has shifted. If you’ve seen her on a red carpet in late 2025 or early 2026, you’ve seen a different Meghan. The "All About That Bass" singer has lost roughly 60 pounds, and people have feelings about it.
Some fans feel betrayed, like the girl who told them every inch of them was perfect from the bottom to the top decided she didn't actually like her own inches. Others are just curious. But looking at Meghan Trainor before weight loss isn't just about comparing old photos to new ones; it’s about understanding a really complicated health journey that involved a lot more than just "eating less."
The "All About That Bass" Era and the Body Image Myth
When Meghan burst onto the scene at 19, she was the "curvy girl" icon. Honestly, she’s admitted since then that she wasn't even as confident as she sounded in the lyrics. She was wearing corsets and layers, trying to hide what she felt were flaws while singing about loving them. It’s kind of wild to think about now, but she was basically a teenager who became a global symbol for self-love before she had even figured out how to love herself.
The public version of Meghan Trainor before weight loss was someone who embraced being "size 14." But behind the scenes, things were tougher. She struggled with vocal cord hemorrhages and the sheer exhaustion of a pop star schedule. Her body was her brand, but it wasn't necessarily feeling like her home.
She wasn't just "the big girl"—she was a powerhouse songwriter. But the industry has a way of putting people in boxes. For years, she stayed in that "relatable, curvy best friend" box, even as her personal health needs started to change.
The Turning Point: C-Sections and Gestational Diabetes
Real life hit hard when Meghan started her family with Daryl Sabara. This wasn't some Hollywood "snap back" where she just woke up thin. It started with a medical wake-up call. When she was pregnant with her first son, Riley, in 2021, she was diagnosed with gestational diabetes.
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"I had to learn about health and fitness if I want to tour forever. I’ve got to be at my strongest if I want to lift up my kids from their crib and not pull out my back." — Meghan Trainor to KIIS FM (November 2025).
That diagnosis changed the game. It wasn't about vanity anymore; it was about metabolic health. She hit her heaviest point—over 200 pounds—right before her C-section with Riley. If you've ever had a C-section, you know. The recovery is brutal. She described being in a "dark place" looking at her scar and feeling disconnected from her physical self.
Moving Away From the "Before" Body
By the time she had her second son, Barry, in 2023, Meghan was done with the old cycle. She started working with a trainer and a dietician, but she also did something that sparked a ton of debate: she leaned into "science and support."
Specifically, she’s been open about using Mounjaro (tirzepatide) to help manage her weight and metabolic health after her second pregnancy. This is where the internet got messy. Some people claim that using a GLP-1 medication "cancels out" her body positivity message. But her trainer, Bella Maher from Malibu Bodies, has been vocal that Meghan was doing the work long before the meds. We’re talking strength training three times a week and a massive focus on gut health and hormone regulation.
She’s basically "biohacking" her way into her 30s. She wants to age backward. She's taking NAD+ supplements. She’s lifting heavy. She’s eating high protein and fiber (think crispy salmon and asparagus). It’s a far cry from the girl who just wanted to "bring booty back."
Why the Backlash to Her Transformation Is So Intense
It’s weirdly heartbreaking to hear her talk about the "hate" she gets for being thin. She told iHeartRadio that she’s finally proud of herself, yet everyone is angry. Why? Because for a decade, people used her "before" image as their own permission to feel okay. When that image changed, it felt like their permission was revoked.
But humans aren't statues. We change.
The version of Meghan Trainor before weight loss was a 19-year-old girl. She’s now a 32-year-old mother of two who has survived two major surgeries and a high-risk pregnancy. Expecting her to look like she did in 2014 is kind of a big ask.
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What You Can Actually Learn From This
If you're looking at Meghan’s journey and wondering how to apply it to your own life, don't just look at the "after" photo. Look at the "how."
- Prioritize Function Over Fashion: She started this because she couldn't lift her kids without pain. If your "why" is just a dress size, you’ll quit. If it’s your ability to live your life, you won't.
- Medical Support Isn't Cheating: Whether it's therapy for body dysmorphia or seeing a doctor for metabolic issues, Meghan proved that "doing it alone" is an outdated badge of honor.
- Strength Training is King: She stopped focusing on just burning calories (cardio) and started building muscle. Muscle is what changes your metabolism long-term.
- The Brain Needs Rewiring: Meghan still sees a therapist to deal with body image. Losing the weight didn't magically fix the "fat girl" internal monologue. That's a separate project.
Meghan is currently promoting her newer music, like the single "Still Don’t Care," which addresses the noise surrounding her body. She’s making it clear that she’s done apologizing for getting healthy. She might not be the "All About That Bass" girl anymore, but she’s definitely more herself than she’s ever been.
Next Steps for You
If you're inspired by Meghan's focus on "science and support," the first step isn't a gym membership. It's a blood panel. Go to your doctor and ask about your A1C levels and hormone balance, especially if you've had kids recently. Understanding your baseline—just like Meghan did with her gestational diabetes diagnosis—is the only way to build a plan that actually sticks. Forget the "snap back" and focus on the "build up."