Seven Nutrition Mistakes Triathletes Are Making in 2026

Are you unknowingly sabotaging your triathlon performance with your nutrition?

In this episode, Advanced Sports Dietitian Taryn Richardson breaks down the 7 biggest nutrition mistakes triathletes are making in 2026 and why they’re holding you back from training hard, recovering properly and performing on race day.

Some of these mistakes have been around for years, but there are a few new ones creeping in, especially with the rise of AI and tracking apps. If you’ve ever felt flat in sessions, struggled with gut issues or wondered why your race day doesn’t reflect your training, this episode is a must-listen.

What you’ll learn:

Why AI-generated nutrition plans can do more harm than good (and how to use them properly)
The problem with macro tracking apps that ignore the bigger picture
Why copying pro athletes is a fast track to frustration
How leaving nutrition until race season is costing you performance
The importance of fuelling for the work required instead of eating the same every day
Why you need to train your gut like you train your body
The real reason investing in your nutrition education changes everything

Nutrition isn’t the last piece of the puzzle, it’s the piece that holds everything together.
If you’re not fuelling properly, you’re leaving performance on the table no matter how good your training plan is.

Chapters:

00:00 - Introduction: What’s changed in triathlon nutrition in 2026
01:50 - Mistake #1: Blindly following AI-generated plans
04:50 - Mistake #2: Relying on macro tracking apps without context
10:10 - Mistake #3: Copying what the pros do
13:20 - Mistake #4: Leaving nutrition until race season
15:50 - Mistake #5: Eating the same every day
18:20 - Mistake #6: Not training your gut for race day
20:30 - Mistake #7: Trying to figure it all out on your own

Links & Resources:

Join the Triathlon Nutrition Academy waitlist: https://www.dietitianapproved.com/academy
Listen to Episode 224: The Problem with Outsourcing Your Nutrition to AI
Grab your free Triathlon Nutrition Checklist: https://www.dietitianapproved.com/checklist

Ready to take action?

If you saw yourself in any of these mistakes, that’s your sign to do something about it.

The Triathlon Nutrition Academy is opening soon. This is your chance to stop guessing, start fuelling properly and finally unlock your performance.

Get on the waitlist now: https://www.dietitianapproved.com/academy

Other Links & Resources

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

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See omnystudio.com/listener for privacy information.

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