Paquete de entrenamiento
Twenty gels and twenty electrolyte sachets: about 10 long sessions.
Informed Sport certified




Developed with Olympians. Trusted daily by athletes worldwide.
60-day guarantee, opened or not. See Delivery and returns
Made in the UK
Informed Sport certified
20 gels · 20 electrolytes
“The mint has a great flavour, nice and subtle. Easy to drink… great flavour, nice and subtle …”
“Amazing taste, have been using for 8 months …”
“Love them, the taste is great and are very easy on my stomach. …… very easy on my stomach …”
Batch tested
Our philosophy
Own your physiology. We develop what it takes for you to do just that.
Same philosophy, every product: based on the latest science, test it in the real world, stripped of anything that isn’t needed to perform again tomorrow.
Used by elite athletes around the world.
How to use
What 20 + 20 covers, per long session.
| Before | 1 Electrolytes sachet in 500ml |
|---|---|
| During | 2 gels an hour (80g carbs), by the table on the box |
| After | 1 Electrolytes sachet |
| 10 sessions | 20 gels + 20 sachets |
For a plan built on your race, your sweat and the weather, use Your plan on this page. For a personal recommendation, email support@truefuels.com.
What it does
20 Energy Gels in the Mix Box, Low Salt and High Salt: carbohydrate that keeps session quality up.
20 Electrolytes, Mint or Watermelon: sodium and minerals replaced as you sweat.
A full training block, in one order.
Delivery and returns
Delivery to the UK: 1 to 3 working days, free over £40, otherwise the fee shows at checkout.
The 60-day guarantee covers opened products. If it isn’t right, email support@truefuels.com within 60 days of purchase for a full refund.
You can cancel an order within 14 days, then return unopened products in their original condition within a further 14 days. We refund in full within 14 days of receiving them. Return postage is yours unless the item is faulty.
Faulty or damaged? Email support@truefuels.com with your order number and a photo. Full details in our returns and refunds policy.
Paquete de entrenamiento · from £79.95
01 / The problem
Training Bundle · 20 + 20-
Running out the week before the long one.
A build is twelve weeks of long sessions.
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Don’t find the box empty on a Saturday.
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20 gels, 20 sachets, ten long sessions.
2 gels in the pocket, 1 sachet before and 1 after, per long session.
“Great to have fuel and hydration at the same time!”
02 / In the box
Fuel the work that builds the race.
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20gels
Energy Gels, Mix Box
Low Salt and High Salt in one box, to try both on the long sessions.
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20sachets
Electrolytes
Mint or Watermelon. Sodium and minerals replaced as you sweat.
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1box
One box
A full training block, in one order.
03 / The timeline
What 20 + 20 covers.
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Before
Electrolytes1 Electrolytes sachet in 500ml. -
During
Energy Gels2 gels an hour (80g carbs), by the table on the box.The salt is already in the gel. -
After
Electrolytes1 Electrolytes sachet. Ten sessions: 20 gels + 20 sachets.
04 / Proof
What athletes told us.
4.8
240 gel reviews
- 96%
- rated the gels 4 or 5 stars
Gel reviews: 228 of 238 rated 4 or 5 stars · Developed with Alistair Brownlee
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“Great taste! Really easy to digest. No stomach issues after”
Oli L. · review via Judge.me · Energy Gels -
“Easy on the stomach and great fueling for long rides.”
Jez T. · review via Judge.me · Energy Gels


Alistair’s perspective
“I realised it was something I had to manage every day.”
Electrolytes
Alistair Brownlee · Two-time Olympic triathlon champion · Co-founder
05 / Complete the system
Works best as a system.
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CoreCtrl
4,000mg L-Taurine
From £28.95
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Geles energéticos
40g Carbs per gel
From £29.95
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The Fourth Discipline™
The system is ours. The destination is yours.
06 / Formula
What's inside. Nothing it doesn't need.
These products don’t stop evolving once they ship. We keep testing and refining them with sports scientists and our own athletes.
See our processcarbohydrate Primary fuel for long efforts
sodium 390mg sodium per sachet, from Himalayan salt.
Per gel, per sachet.
07 / Your plan
Get your personalised fuelling plan.
If you have tested your sweat rate or sodium concentration, entering these will sharpen the fluid and electrolyte recommendations. Leave blank to use the algorithm's estimates.
Algorithm informed by published research on exercise fluid replacement, sweat rate, sweat sodium concentration and carbohydrate use during endurance exercise, including Sawka et al. (2007), Jeukendrup (2011) and Baker (2017). Constants: 40 g carbohydrate per gel, 1 g salt per high-salt gel, 0.25 g salt per low-salt gel and 1 g salt per electrolyte serving. Scientific estimate only. Individual variation exists. Validate all recommendations in training before race day.
08 / Athletes
Trusted from the podium to the parkrun.
Tap a face to read their story.
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Alistair Brownlee
“The best strategy is usually the simplest one.”
Alistair Brownlee · Co-founder
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Ben Millar
“I’m also a massive fan of the watermelon electrolytes. They’re my daily go-to.”
Ben Millar · Reflex-Nopinz
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Malachi Cashmore
“A gel I can actually get down means I’m still fuelling when it matters most.”
Malachi Cashmore · Professional triathlete
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Joanna Tallmann
“What I like about truefuels is the understated flavour. It’s not a taste you get tired of quickly.”
Joanna Tallmann · Ultrarunner
09 / Questions
Questions? Answered.
Which gel do I use?
Low Salt for normal sweat. Salt marks on your clothes or extreme heat? Replace Low Salt with High Salt. Mix the two to set your hour. The bundle’s Mix Box holds both.
Is it sweet?
Gels are mild; Electrolytes have zero sugar.
Do I need both?
Gels carry 98mg or 386mg sodium; the sachets cover before, after and the bottle.
Delivery?
Delivery to the UK: 1 to 3 working days, free over £40, otherwise the fee shows at checkout.
What’s in the box?
20 Energy Gels in the Mix Box, Low Salt and High Salt, and 20 Electrolytes in Mint or Watermelon, your choice.
How do I mix Electrolytes?
One sachet in 500ml of cold water, before and during training, and a second serve on hot or long days. The gels already carry salt.
Is it tested for banned substances?
Yes. Every batch is Informed Sport certified before it ships.
What if it isn’t right for me?
You have 60 days to decide. If it isn’t right, email support@truefuels.com for a full refund.
truefuels® · The Fourth Discipline™
“Race day should just be an extension of the habits you built in training.”
Alistair Brownlee, two-time Olympic triathlon champion
Racing soon? The Race Ready System adds CoreCtrl.
















