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How Did Meghan Trainor Lose Weight? Her Exercise Plan, Mounjaro

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How Did Meghan Trainor Lose Weight? Her Exercise Plan, Mounjaro

Fans of Meghan Trainor have been in awe of her weight loss transformation in 2025 and have been wondering how she achieved her slimmer figure. Thankfully, the “All About That Bass” hitmaker is an open book when it comes to her health and fitness journey. Life & Style breaks down everything the singer has said about how she lost weight, including Mounjaro use, her exercise plan and her diet.

Meghan Trainor Admitted to Using Mounjaro

After months of speculation from fans that Meghan used a weight loss drug to shed pounds, the “Made You Look” singer admitted to using Mounjaro — a type 2 diabetes drug often prescribed off label for weight loss due to its ability to reduce appetite and slow down digestion.

“No, I don’t look like I did 10 years ago. I’ve been on a journey to be the healthiest, strongest version of myself for my kids and for me. I’ve worked with a dietician, made huge lifestyle changes, started exercising with a trainer, and yes, I used science and support (shoutout to Mounjaro!) to help me after my 2nd pregnancy. And I’m so glad I did because I feel great,” Meghan wrote in a March 31, 2025, Instagram post after seeing and hearing comments about her body at the 2025 Billboard Women in Music event.

Meghan later discussed her use of the drug, which is a brand name for the medication tirzepatide, on the April 10, 2025, episode of her and husband Daryl Sabara’s “Workin’ On It” podcast.

“We did 75 Hard after [our son] Riley was born and, man, did we crush,” Daryl said. Meghan added, “Then, we heard more and more of our friends — and even our doctors — were on Mounjaro and Ozempic.”

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Meghan and Daryl both decided to try Mounjaro because research found that it had fewer side effects than other weight loss drugs, such as Wegovy and Ozempic. The Grammy winner said she had “no shame” in using the medication. However, she and Daryl also made sure that they kept up with their gym routines and diet plans so they didn’t “lose muscle that we worked so hard gaining all those years.’”

Meghan Trainor Shares Her Exercise Routines

Meghan and Daryl have worked out together for years, and their various gym routines have been shared on Instagram by personal trainers Rebecca Stanton and Bella Maher. And though fitness has long been important to Meghan, she told People that she decided to take it more seriously in 2024 while preparing to go on tour.

asos Katopodis/Getty Images for iHeartRadio

“I already told my household. I was like, ‘I am training for the Olympics, OK?’ I want to train and eat clean, and feel good when I’m dancing and singing. I don’t wanna be so winded, because right now, I’m winded,” she explained.

Her new routine helped her get stronger, as she explained to Women’s Health.

“I just look at all the years that I wasted doing hard cardio or trying to be a runner. My body was always just angry and inflamed. I was like, ‘What’s wrong with me? Why can’t I do this?’” Meghan said. “I know now that my body enjoys lifting weights and it doesn’t make you big and bulky.”

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Meghan Trainor Prioritizes Protein in Her Diet

Meghan revealed to Women’s Health that she has a goal of eating 100 grams of protein a day. To achieve this, she often eats two eggs and organic turkey bacon for breakfast, plus recipes from meal delivery services for lunches and dinners.

“I want to mix it up, but I’m such a creature of habit that we’ll do the same thing every day,” she said. “I wish I knew how to cook. I make bland stuff. But my husband is a nerd about finding food delivery companies that give you protein and help you out with a journey like that. So we’re always looking for a new one.”

How Much Weight Did Meghan Trainor Lose?

While Meghan hasn’t shared exactly how much weight she’s lost, she revealed that she shed 60 pounds after she gave birth to her and Daryl’s son Riley in 2021. They later welcomed son Barry in July 2023.

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Fitness

Share your health and fitness questions for Devi Sridhar, Mariella Frostrup, and Joel Snape

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Share your health and fitness questions for Devi Sridhar, Mariella Frostrup, and Joel Snape

There’s no bad time to take a more active interest in your health, but the new year, for lots of us, feels like a fresh start. Maybe you’re planning to sign up for a 10k or finally have a go at bouldering, eat a bit better or learn to swing a kettlebell. Maybe you want to keep up with your grandkids — or just be a little bit more physically prepared for whatever life throws at you.

To help things along, Guardian Live invites you to a special event with public health expert Devi Sridhar, journalist and author Mariella Frostrup, and health and fitness columnist Joel Snape. They’ll be joining the Guardian’s Today in Focus presenter Annie Kelly to discuss simple, actionable ways to stay fit and healthy as you move through the second half of life: whether that means staying strong and mobile or stressing less and sleeping better.

To make the whole event as helpful as possible, we’d love to hear from you about what you find most challenging — or confusing — when it comes to health and exercise. What should you actually be eating, and how are you going to find the time to make it? What sort of exercise is best, and how often should you be doing it? Is Pilates worth the effort — and should we really all be drinking mugfuls of piping hot creatine?

Whether your question is about exercise, eating, or general wellness, post it below and we’ll put a selection to our panel on the night.

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