From Couch to Ironman at 48

What happens when someone with zero athletic background decides to completely change their life… and accidentally signs up for an Ironman four months later?

In this episode of the Triathlon Nutrition Academy Podcast, Advanced Sports Dietitian Taryn Richardson sits down with Triathlon Nutrition Academy athlete Chris Tubbs to unpack his incredible journey from couch potato to multiple Ironman finisher.

Chris started triathlon at 48 years old, while travelling 60% of the time for work in the biotech industry. Early on, things didn’t go to plan. Despite doing the training, races were ending in DNFs, cramping, nausea and serious frustration.

The surprising part? Fitness wasn’t the problem.

Through this conversation, Chris shares how dialling in his nutrition and hydration completely changed his ability to train, race and actually finish events. From ditching an expensive supplement habit to discovering he loses more than 2 litres of sweat per hour, this episode highlights just how powerful personalised nutrition can be for endurance performance.

It’s an honest, inspiring conversation about resilience, learning from mistakes and why it’s never too late to start something big.

In This Episode We Discuss

• How Chris went from “championship potato chip eater” to Ironman athlete

• The moment that sparked his decision to completely change his lifestyle

• Accidentally signing up for an Ironman just four months into triathlon

• Why he kept experiencing DNFs, cramping and poor race performances

• The surprising truth about supplements vs nutrition foundations

• How he saved hundreds of dollars a month by ditching unnecessary supplements

• Discovering his extremely high sweat rate of over 2L per hour

• Why hydration, not carbs, was the missing piece of his race-day puzzle

• The challenges of fuelling properly while travelling constantly for work

• How personalised nutrition strategies helped him finally finish races feeling strong

• The mindset shift that kept him pushing forward through setbacks

• Why it’s faster and far more effective to get expert help rather than trying to figure it all out alone

Key Takeaway

You can be incredibly fit, train hard and still struggle on race day if your nutrition and hydration aren’t dialled in.

Chris is proof that when you stop guessing and start fuelling strategically, everything changes.

Chapters

01:10 The photo that changed everything
03:00 From couch potato to triathlon at 48
06:10 Accidentally signing up for an Ironman
09:00 Why his early races kept falling apart
12:30 The supplement mistake many triathletes make
16:00 Discovering a massive sweat rate
19:30 Hydration vs carbs for endurance performance
23:10 Learning to fuel properly while travelling
27:00 Racing in heat vs cold conditions
30:30 The mindset shift that changed everything
34:00 Why getting expert help speeds up progress
37:00 Chris’ future triathlon goals

Links & Resources

Learn more about the Triathlon Nutrition Academy Program

Listen to Episode 101: How much money triathletes waste on supplements

Connect with Chris on Instagram
@iron_clydesdale

Other Links & Resources

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

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

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