How Do You Lose Weight When Training for a Triathlon?

How Do You Lose Weight When Training for a Triathlon?

You're logging endless kilometres in the pool, on the bike and in your running shoes. Your training plan is meticulous. Yet somehow, the numbers on the scale refuse to budge. If you're feeling exhausted, constantly hungry and frustrated that you’re not losing body fat despite all that training, you're not alone. This is one of the most common struggles I see as an advanced sports dietitian working with triathletes.

The truth is, you simply cannot out-train a poor diet.

There’s No One Size Fits All

Next time you're at an Ironman event, take a look at the athletes around you - they’re all different shapes and sizes. Many of them train 15+ hours a week but still struggle with body composition. The disconnect often stems from a fundamental misunderstanding of how our bodies respond to training and nutrition.

It sounds like a contradiction, but under-fuelling during heavy training doesn't lead to fat loss – it leads to compromised recovery, diminished performance and a body that clings desperately to its energy stores. The result? Depleted, exhausted athletes moving further away from their goals with each training session.

Balancing Energy Requirements

When training for long-course triathlons, your energy demands skyrocket but so many athletes don’t know how to fuel properly.

This creates a frustrating cycle: inadequate nutrition leads to poor recovery, which diminishes training quality, which reduces your body's ability to utilise fat as fuel. The end result is often injury, burnout and stalled progress.

The Appetite Rollercoaster

During heavy training blocks, your appetite regulation can go haywire. Some days you're ravenous; others you have no appetite at all. Add in training fatigue, and you're naturally drawn toward quick-fix carbs and sugars – often consuming more calories than your session actually burned.

This isn't a willpower issue – it's your body's natural response to energy demands. But without a strategic approach, these patterns can completely derail your body composition goals.

Taking A Strategic Approach

Losing body fat while training for triathlon is absolutely possible, but it requires a strategic approach. Rather than drastic calorie cutting or carb cutting, focus on creating sustainable deficits during less critical training windows while continuing to fuel effectively on key training days.

The off-season is an ideal opportunity to address body composition without compromising performance. Attempting significant fat loss during peak training or race preparation is almost always counterproductive.

Testimonial: Erin Byrge lost 40 pounds while getting faster and stronger

Make sure you stay tuned toward the end of the episode where I interview Erin, a member of the Triathlon Nutrition Academy Program, who learned exactly how to shed a significant amount of body fat while fuelling her body for performance. She not only completely changed her body composition, but came out stronger, faster and continues to knock out rockstar race performances.

LINKS:

🚴 Grab your copy of Fuel Your Adventure and fuel your long rides with real food that works

🏊‍♂️🚴‍♀️🏃‍♂️ Build your personalised triathlon fuelling plan inside the Triathlon Nutrition Academy.

Download the FREE audio series The 5 Biggest Nutrition Mistakes Costing You Time on Race Day

Check how well you’re doing when it comes to your nutrition with my 50 step checklist to Triathlon Nutrition Mastery

WORK WITH TARYN HERE

SUPPORT THE PODCAST HERE

CONNECT WITH TARYN

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The Triathlon Nutrition Academy® is a podcast by Dietitian Approved®. All rights reserved.

See omnystudio.com/listener for privacy information.

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Creatine Gummies Exposed – 9 Brands Tested, Half Failed

Creatine Gummies Exposed – 9 Brands Tested, Half Failed

Are your creatine gummies actually doing anything? In this week’s episode, we reveal the results of independent lab testing on nine popular creatine gummy brands—and it's not pretty. Some delivered the goods, but others? Utterly useless. With creatine booming across social media and mainstream marketing, it’s easy to fall for fancy packaging. But as triathletes, we need performance—not candy. Here’s what you’ll learn: Why creatine gummies are having a moment Quick refresher: What is creatine and why use it? Who actually benefits from creatine (spoiler: not everyone) The shocking results of James Smith’s independent testing Which 5 brands failed and why The 4 that passed and delivered close to label claims How to spot a fake: 3 simple red flags The Aussie company leading the way with transparent batch testing Is there still a place for creatine gummies in sport? Links & Resources: James Smith Creatine Studies Listen to Episode 188 🏊‍♂️🚴‍♀️🏃‍♂️ Build your personalised triathlon fuelling plan inside the Triathlon Nutrition Academy. Download the FREE audio series The 5 Biggest Nutrition Mistakes Costing You Time on Race Day SUPPORT THE PODCAST HERE CONNECT WITH TARYN Website | Instagram | Facebook | YouTube The Triathlon Nutrition Academy® is a podcast by Dietitian Approved®. All rights reserved. See omnystudio.com/listener for privacy information.

4 Sep 14min

What It Takes to Fuel Your First Ironman

What It Takes to Fuel Your First Ironman

What It Takes to Fuel Your First Ironman with Steve Duquette Thinking about doing your first full Ironman? Don’t leave your performance to chance. In this episode, I’m joined by long-time TNA athlete Steve Duquette, who recently completed his first Ironman at Ironman Canada—and felt strong from start to finish. We dig into the practical nutrition strategies that gave him the confidence to go all in, and how he avoided common race-day disasters like cramps, GI issues and bonking. Whether you’re considering going long or already knee-deep in training, this episode will help you understand what it actually takes to fuel the training, execute a bulletproof race day strategy and enjoy the journey. In this episode we cover: Steve’s journey from cramping cyclist to confident Ironman finisher How nutrition gave him the confidence to step up to the full distance Key differences in fuelling 70.3 vs Ironman training What went wrong in training—and how he fixed it before race day The full race day strategy: carb loading, electrolytes, hydration and more Sweat testing, spreadsheets and how data built confidence Steve’s advice for anyone still winging it What he’d change next time and his goals for 2027 Links & Resources: 🏊‍♂️🚴‍♀️🏃‍♂️ Build your personalised triathlon fuelling plan inside the Triathlon Nutrition Academy. Download the FREE audio series The 5 Biggest Nutrition Mistakes Costing You Time on Race Day SUPPORT THE PODCAST HERE CONNECT WITH TARYN Website | Instagram | Facebook | YouTube The Triathlon Nutrition Academy® is a podcast by Dietitian Approved®. All rights reserved.See omnystudio.com/listener for privacy information.

28 Aug 28min

Why Sleep Is Your #1 Recovery Tool with Dr Michael Grandner

Why Sleep Is Your #1 Recovery Tool with Dr Michael Grandner

Struggling to recover despite solid training and nutrition? You might be missing the most powerful recovery tool of all — sleep. In this episode, I’m joined by Dr Michael Grandner, Director of the Sleep and Health Research Program at the University of Arizona and a world-leading expert in sleep science. We break down exactly why sleep matters so much for endurance athletes, what’s really going on when you miss sleep, and how to get better quality shut-eye — even when you’re training hard, managing work and juggling life. We cover: Why sleep is essential for adaptation and recovery — not just rest The truth about how much sleep triathletes actually need What to do if your sleep is disrupted or inconsistent Why wearables are helpful — but not the whole story Practical strategies to improve sleep tonight Links & Resources: Dive into Dr Grandners Research: Google Scholar Citations Connect with Dr Michael Grandner:WebsiteInstagram LinkedIn 🏊‍♂️🚴‍♀️🏃‍♂️ Build your personalised triathlon fuelling plan inside the Triathlon Nutrition Academy. Download the FREE audio series The 5 Biggest Nutrition Mistakes Costing You Time on Race Day SUPPORT THE PODCAST HERE CONNECT WITH TARYN Website | Instagram | Facebook | YouTube The Triathlon Nutrition Academy® is a podcast by Dietitian Approved®. All rights reserved. See omnystudio.com/listener for privacy information.

21 Aug 42min

Are You a Burnt-Out Triathlete? Answer These 3 Questions

Are You a Burnt-Out Triathlete? Answer These 3 Questions

Feeling flat, foggy or just can’t be bothered to train? Burnout doesn’t always come in hot with a meltdown and a for-sale bike post. Sometimes it’s the slow creep of fatigue, motivation dips and sugar cravings that chip away at your performance and love of the sport. In this episode, Taryn unpacks the 3 key questions every triathlete should ask themselves to figure out if they’re on the burnout train — and what to do if the answer is yes. What you’ll learn: Why this topic hits close to home for so many triathletes Question 1: Are you feeling flat all the time? The sneaky signs of under-fuelling you might be ignoring Question 2: What’s really happening after your sessions? Recovery nutrition mistakes that cost you more than you think Question 3: Hungry all the time or not at all? Here’s why that matters Real talk on what burnout looks like and how to fix it LINKS: Link to paper 🏊‍♂️🚴‍♀️🏃‍♂️ Build your personalised triathlon fuelling plan inside the Triathlon Nutrition Academy. Download the FREE audio series The 5 Biggest Nutrition Mistakes Costing You Time on Race Day SUPPORT THE PODCAST HERE CONNECT WITH TARYN Website | Instagram | Facebook | YouTube The Triathlon Nutrition Academy® is a podcast by Dietitian Approved®. All rights reserved. See omnystudio.com/listener for privacy information.

14 Aug 13min

Extra Virgin Olive Oil vs Ibuprofen – What the Science Says

Extra Virgin Olive Oil vs Ibuprofen – What the Science Says

Did you know the humble bottle of extra virgin olive oil in your pantry could be doing more than just making your salad taste good? In this episode, I’m unpacking a game-changing compound found in high quality EVOO – oleocanthal – which behaves just like ibuprofen. We’re talking natural anti-inflammatory power that can help reduce exercise-associated inflammation, support recovery and keep your immune system firing – without wrecking your gut or kidneys like NSAIDs can. You’ll learn: What oleocanthal is and why it’s like nature’s ibuprofen How to spot a good quality EVOO (not all are created equal) Why this simple pantry staple could be a secret weapon in your recovery strategy LINKS: Link to paper 🏊‍♂️🚴‍♀️🏃‍♂️ Build your personalised triathlon fuelling plan inside the Triathlon Nutrition Academy. Download the FREE audio series The 5 Biggest Nutrition Mistakes Costing You Time on Race Day SUPPORT THE PODCAST HERE CONNECT WITH TARYN Website | Instagram | Facebook | YouTube The Triathlon Nutrition Academy® is a podcast by Dietitian Approved®. All rights reserved.See omnystudio.com/listener for privacy information.

7 Aug 12min

200 Episodes In – Fuel Tactics That Made TNA Athletes Faster

200 Episodes In – Fuel Tactics That Made TNA Athletes Faster

Think you're eating right for triathlon but still underperforming? In this milestone 200th episode, the mic flips as four inspiring Triathlon Nutrition Academy athletes interview Taryn about the game-changing strategies that turned their training, racing and health around. From ditching the guesswork to losing 20kg, improving diabetes, and smashing PBs, this episode is packed with real stories of what's possible when your nutrition is dialled. Get a behind-the-scenes look at the philosophies behind the TNA program, why age-groupers should stop copying the pros, and what actually works when you're juggling training with work, family and life. If you're serious about improving performance, staying injury-free and fuelling smarter, not harder, this episode is a must-listen. LINKS: 🏊‍♂️🚴‍♀️🏃‍♂️ Build your personalised triathlon fuelling plan inside the Triathlon Nutrition Academy. Download the FREE audio series The 5 Biggest Nutrition Mistakes Costing You Time on Race Day SUPPORT THE PODCAST HERE CONNECT WITH TARYN Website | Instagram | Facebook | YouTube The Triathlon Nutrition Academy® is a podcast by Dietitian Approved®. All rights reserved.See omnystudio.com/listener for privacy information.

31 Juli 36min

Plant vs Animal Protein – Which Builds More Muscle?

Plant vs Animal Protein – Which Builds More Muscle?

Are plant-based proteins really good enough for triathletes chasing strength gains and performance? Or do animal proteins still reign supreme? In this episode, I dive into a brand-new systematic review comparing plant and animal proteins on muscle mass, strength and performance outcomes – and break down exactly what it means for you as a triathlete. You’ll get a no-fluff summary of the science, plus practical takeaways whether you're a carnivore, vegetarian or full vegan. Discover which protein sources really matter, how to optimise your intake for recovery and strength, and why you can’t out-supplement a lack of lifting. Reference: https://pubmed.ncbi.nlm.nih.gov/39813010/ LINKS: 🏊‍♂️🚴‍♀️🏃‍♂️ Build your personalised triathlon fuelling plan inside the Triathlon Nutrition Academy. Download the FREE audio series The 5 Biggest Nutrition Mistakes Costing You Time on Race Day SUPPORT THE PODCAST HERE CONNECT WITH TARYN Website | Instagram | Facebook | YouTube The Triathlon Nutrition Academy® is a podcast by Dietitian Approved®. All rights reserved.See omnystudio.com/listener for privacy information.

24 Juli 14min

Three Triathlon Nutrition Myths Costing You Performance – Stop Doing Them!

Three Triathlon Nutrition Myths Costing You Performance – Stop Doing Them!

Still chasing race weight? Skipping food before training to burn more fat? Meticulously tracking every calorie? In this week’s episode, I’m calling out the three biggest nutrition myths that are still messing with triathletes in 2025. If you’ve been feeling flat, frustrated or just not seeing the performance gains you expect—this one's for you. Learn why these outdated beliefs are holding you back and what to do instead, including: Why fuelling beats weight loss for real results When fasted training helps (and when it hurts) Why tracking calories isn’t the silver bullet LINKS: 🏊‍♂️🚴‍♀️🏃‍♂️ Build your personalised triathlon fuelling plan inside the Triathlon Nutrition Academy. Download the FREE audio series The 5 Biggest Nutrition Mistakes Costing You Time on Race Day SUPPORT THE PODCAST HERE CONNECT WITH TARYN Website | Instagram | Facebook | YouTube The Triathlon Nutrition Academy® is a podcast by Dietitian Approved®. All rights reserved. See omnystudio.com/listener for privacy information.

21 Juli 24min

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