Meghan Trainor Weight Loss: What Really Happened Behind the Scenes

Meghan Trainor is tired of the comments. Honestly, can you blame her? For a decade, she was the "All About That Bass" girl—the poster child for loving your curves. Now, she looks different.

People are loud about it.

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The internet is currently a mess of "who is this?" and "she’s unrecognizable." It’s kinda wild how a woman taking care of her health can trigger such an aggressive reaction. But Meghan isn't hiding. She’s being remarkably blunt about how she dropped 60 pounds, and it wasn't just magic or "drinking more water."

It was a total overhaul.

The Gestational Diabetes Wake-Up Call

Most people think this was about vanity. It wasn't.

Everything actually started when Meghan was pregnant with her first son, Riley. She was diagnosed with gestational diabetes. If you’ve never dealt with that, it basically means your blood sugar goes haywire during pregnancy. It’s scary. It forces you to look at food as fuel and medicine rather than just a craving.

"I had to learn about health and fitness," she told KIIS FM recently.

She realized that if she wanted to be around to lift her kids out of their cribs without throwing her back out, she had to get strong. Simple as that. The goal wasn't a dress size; it was longevity. She was over 200 pounds after her C-section with Riley and admitted to being in a "dark place" mentally.

The "Science and Support" Factor

Let’s talk about the elephant in the room: Mounjaro.

Meghan did something most celebrities are too terrified to do. She admitted to using a GLP-1 medication. In an Instagram post from early 2025, she gave a "shoutout to Mounjaro" for helping her after her second pregnancy with her son, Barry.

She calls it "science and support."

But here’s the nuance: she didn't just take a shot and sit on the couch. Her trainer, Bella Maher, has been very vocal about the fact that Meghan was doing the work long before the medication entered the chat. The drug helped with the "food noise" and the biological hurdles of postpartum hormones, but the muscle?

She built that in the gym.

Why She’s Lifting Heavy Now

Meghan used to hate the treadmill. She said it made her feel "swollen" and "inflamed."

Relatable, right?

Now, she hits the weights three times a week. Strength training changed everything for her. She’s focused on her "gut health" and her hormones. She even joked with Women’s Health that she’s trying to "grow her butt back" because she lost so much weight that her signature "bass" disappeared.

Her current routine looks something like this:

• Strength training 3x a week (usually with her husband, Daryl Sabara).
• 100 grams of protein a day (her trainer’s strict requirement).
• Early bedtime: She and Daryl are usually in bed by 8:00 PM.
• Walking: Using her Apple Watch to hit step goals, even if it’s just cleaning the house.

She eats two eggs and turkey bacon almost every single morning. She’s a creature of habit. For lunch and dinner, they use high-protein meal delivery services because, in her own words, she’s a "bland" cook.

Dealing with the "Evil" Comments

Despite feeling the best she’s ever felt, the backlash has been brutal.

People have called her a "walking nose." They’ve told her she betrayed the body-positivity movement. It got to her. She admitted to crying over the "evil" comments and talking through it with her therapist.

"I'm taking care of my health to the highest level and I've never felt better," she told Entertainment Tonight. "And that's when people attack me."

She’s channeling that frustration into her music, specifically her song "Still Don't Care." It’s her way of reclaiming her narrative. At 31, she’s learning that she can’t give strangers the power to dictate how she feels about her own skin.

Actionable Insights for Your Own Journey

If you’re looking at Meghan’s story and wondering how to apply it to your life, here are the real takeaways:

Prioritize Protein First Meghan aims for 100 grams a day. This isn't just a random number; it's what keeps you full and helps repair muscle after those weight sessions. If you aren't tracking protein, start there.

Ditch the "Cardio Only" Mindset If running makes you feel miserable and inflamed, stop doing it. Strength training—even just twice a week—boosts your resting metabolic rate. That means you burn more calories while you're sleeping.

Consult Professionals on "Support" Whether it's a dietitian or a doctor to discuss GLP-1 medications, don't do it alone. Meghan worked with a trainer, a dietitian, and a medical doctor to ensure she was doing things safely and sustainably.

Focus on "Functional Strength" Don't workout to look like a model. Workout so you can lift your kids, carry groceries, and tour the world (if that’s your thing). When the "why" is functional, you're much more likely to stick to it when the scale doesn't move.

Meghan’s journey proves that health isn't a destination—it's a constant, sometimes annoying, but ultimately rewarding evolution.