Can you complete an Iron-distance triathlon completely fasted, only being allowed fluids? We’ve experimented with various different fuelling sources on the GTN channel over the years, but this could be the ultimate challenge! Could Heather or James complete it?

Useful Links
Submit your Photo and Video to us 👉 https://gtn.io/UPLOAD
Check out the GTN Shop 👉 https://gtn.io/TeamKit

Watch more on GTN...
📹 We Ran A 'Naked' 5km & This Is What Happened!
📹 Watch our Editor’s Choice Playlist 👉 https://gtn.io/editorschoice
📹 Watch our weekly show, The GTN Show 👉 https://gtn.io/GTNshowPlaylist

Photos: © Triathlon / Getty Images

🎵 Music - licensed by Epidemic Sound / Artlist 🎵
Bicycling on Mars - The Big Let Down
Desert Fire Blues - Will Harrison
Nova Berlin - Rain Jewels
Off the Rails - Will Harrison
Rough and Tumble - Will Harrison
Say My Name! - Candelion
Sojourner - The Big Let Down
Space Age Girl Machine (Instrumental Version) - Conditional
The Decider (Instrumental Version) - Lasse Lyx
Up in Arms - Will Harrison
Varg! (Instrumental Version) - Loving Caliber.
Hordes - Jo Wandrini

#gtn #triathlon #swimbikerun #swim #bike #run

The Global Triathlon Network (GTN) is the world's biggest triathlon YouTube channel, with new videos every day! GTN is for anyone who loves triathlon: from seasoned triathletes to first-timers – and everyone in between!

With the help of our former pro and Olympic medal-winning team, we’re here to inform, entertain and inspire you to become a better triathlete; including videos on:

- How to swim, bike, and run faster with expert knowledge
- Try our session ideas
- Investigations into wide-ranging topics
- The best triathlon bike tech and gear with pro-know-how
- In-depth, entertaining features from the heart of the sport
- Chat, opinion and interact with us across the channel and on social media!

Join us on YouTube’s best triathlon channel to get closer to the sport and to become a better, faster and fitter triathlete!

Welcome to the Global Triathlon Network.

Thanks to our sponsors:
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THEMAGIC5: https://gtn.io/TheMagic5
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ON Running: http://gtn.io/On-Running
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Park Tool: http://gtn.io/parktool
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Trimtex: https://gtn.io/Trimtex
Wahoo: https://gtn.io/Wahoo
Zwift: http://gtn.io/zwift

Watch our sister channels:
Global Cycling Network - https://www.youtube.com/gcn
GCN Tech - https://www.youtube.com/gcntech
GCN Racing - https://www.youtube.com/gcnracing
GCN Italia - https://www.youtube.com/gcnitalia
GCN en Espanol - https://www.youtube.com/gcnenespanol
GCN auf Deutsch - https://www.youtube.com/gcnaufdeutsch
GCN en Francais - https://www.youtube.com/gcnenfrancais
GCN Japan - https://www.youtube.com/gcnjapan
GCN Training - https://www.youtube.com/gcntraining
Global Mountain Bike Network - https://youtube.com/gmbn
GMBN Tech - https://www.youtube.com/gmbntech
Electric Mountain Bike Network - https://www.youtube.com/embn