Episode 260 - How to Gain Muscle While Losing Body Fat

Can you gain muscle while losing body fat at the same time, or is body recomposition just a clickbait headline?

For years the advice has been that you have to pick one. Eat in a calorie deficit and lose body fat, or eat in a calorie surplus and build muscle. A brand new study published in the European Journal of Applied Physiology in April 2026 says the picture is more interesting than that, and it is already being butchered all over social media. I break the whole paper down for you. What the researchers did, what they actually measured, and the bits the headlines have quietly skipped over. Then I do the part that matters most, which is translating a study done on young resistance trained lifters into what it means for someone swimming, biking and running six days a week.

IN THIS EPISODE

• What body recomposition actually is, and why it is not the same thing as losing weight
• What the 2026 study did, and what happened to all three groups over 10 weeks
• Why an increase in fat-free mass does not automatically mean a kilo of new muscle
• The training detail that did just as much work as the nutrition did
• Whether you really need 2.5 grams of protein per kilo of body weight a day
• Why the size of the calorie deficit matters far more than most triathletes think
• Where this study stops transferring the moment you apply it to endurance training
• Who is well placed to recomp right now, and who is better off picking one goal
• The 4 things I would start with if body recomposition is your goal

Links:

Check how well you’re doing when it comes to your nutrition with our 50 Step Checklist to Triathlon Nutrition Mastery

Start working on your nutrition now with my Triathlon Nutrition Kickstart course 

It’s for you if you’re a triathlete and you feel like you’ve got your training under control and you’re ready to layer in your nutrition. It's your warmup on the path to becoming a SUPERCHARGED triathlete – woohoo!

Connect with me: 

To learn more about the Triathlon Nutrition Academy, head HERE | dietitianapproved.com/academy

See behind-the-scenes action on Instagram: @dietitian.approved

Follow along on Facebook: @DietitianApproved

Join our FREE Dietitian Approved Crew Facebook group

Enjoying the podcast?

Let me know what you loved about it and what you learnt by tagging me @dietitian.approved on Instagram!

Episode Transcription

Episode 260: How to Gain Muscle While Losing Body Fat

Welcome to the Triathlon Nutrition Academy podcast. The show designed to serve you up evidence-based sports nutrition advice from the experts. Hi, I'm your host Taryn, Accredited Practicing Dietitian, Advanced Sports Dietitian and founder of Dietitian Approved. Listen as I break down the latest evidence to give you practical, easy-to-digest strategies to train hard, recover faster and perform at your best. You have so much potential, and I want to help you unlock that with the power of nutrition. Let's get into it.

Add transcript in here

Thanks for joining me for this episode of the Triathlon Nutrition Academy podcast. I would love to hear from you. If you have any questions or want to share with me what you've learned, email me at [email protected]. You can also spread the word by leaving me a review and taking a screenshot of you listening to the show. Don't forget to tag me on social media, @dietitian.approved, so I can give you a shout out, too. If you want to learn more about what we do, head to dietitianapproved.com. And if you want to learn more about the Triathlon Nutrition Academy program, head to dietitianapproved.com/academy. Thanks for joining me and I look forward to helping you smashed in the fourth leg - nutrition!