Triathlon fuel
Eat on the bike, run strong off it.
Power Fluids on the bike, Energy Pastilles in your tri suit or bento box. Simple fuel you can take at race pace, in all three legs of the day.
4.8 from 559 reviews · Runner’s World Sports Nutrition Awards 2026
How much you need
Carbs an hour, by distance
Do most of your fuelling on the bike, then keep topping up on the run.
Two Energy Pastilles are 30g of carbohydrate. One scoop of Power Fluids is 27g. These ranges follow widely used sports nutrition guidance; practise your amounts in training before race day.
The triathlon kit
Everything for race day
One kit for transition: pastilles, Power Fluids, bottle and pouch.
How to use it
How to fuel race day
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1
Bike: drink and eat early
Power Fluids in your bottles and pastilles in a bento box. Start in the first 15 minutes of the bike.
Shop Power Fluids → -
2
Run: little and often
Pastilles in your tri suit pocket. One every 15 to 20 minutes with water at the aid stations.
Shop Energy Pastilles → -
3
Rehearse it in brick sessions
Practise the exact plan on your long bike and brick runs so nothing is new on race day.
Get your plan →
Training for the whole block?
45% off the complete Power Endurance System
1kg Energy Pastilles, 900g Power Fluids, a 710ml bottle and the Adventure Pouch. Up to £95 of fuel for £49.99 on your first box, then reloaded every six weeks. Skip or cancel anytime.
From verified buyers
What triathletes say
“I knew from experience that I wasn’t fuelling races properly… The first success came after a triathlon when I actually felt alive & strong.”
“These have almost completely replaced gels for me. I use them for fell races of all distances and rides of all distances… I even use them in training, which I never did with gels.”
“Lovely refreshing taste, and really keeps you fresh during long runs.”
Want the detail?
The full triathlon fuelling guide
A leg-by-leg race-day plan, bento-box logistics and what to pack in your transition bag.
