For more than 39 years, Hammer Nutrition has helped endurance athletes fuel smarter. Hammer Gel remains one of the brand's flagship products because it provides fast, dependable energy without relying on excessive simple sugars or artificial ingredients. Instead, it delivers concentrated calories from complex carbohydrates, helping support steady energy, digestive comfort and consistent performance when you need it most.
This Sugar Free Endurance Gel is the gold standard for athletes. New to Hammer? View our expert fuelling guide right here.
Try our Bulk Gel Jug with 26 servings. This pack includes a free flask for your sessions.
Why Athletes Choose the Hammer Gel Jug
- 26 servings
- refill reusable flask
- much lower cost per serving
- less plastic waste
- Free 5 serving flask included
Try our 12 flavour sampler pack here. Find your favorite taste while you train for your next big endurance event.
A Smarter Approach to Endurance Gel Fuelling
Sports nutrition has changed dramatically over recent years, with many products promoting extremely high carbohydrate intakes using multiple sugar sources such as glucose and fructose.
While these high-intake strategies may have a place for some elite athletes under carefully controlled conditions, they are not essential for most endurance athletes and can increase the risk of digestive discomfort when pushed beyond an individual's tolerance.
Hammer Nutrition has always followed a different philosophy.
Rather than encouraging athletes to consume as many carbohydrates as possible, Hammer focuses on supplying the calories most athletes can comfortably absorb and utilise, helping support sustained performance while reducing the likelihood of stomach distress and flavour fatigue.
The aim is simple: fuel efficiently, not excessively.
Steady Energy Without the Sugar Rollercoaster
Unlike many energy gels that rely heavily on simple sugars, Hammer Gel uses complex carbohydrates to provide a smoother, more controlled source of energy.
Instead of encouraging rapid spikes in blood glucose followed by sudden energy crashes, Hammer Gel is designed to help maintain a more consistent energy supply throughout training and racing.
For endurance athletes spending hours on the road, trail or race course, consistency is often far more valuable than a brief burst of energy.
This makes Hammer Gel particularly well suited for:
- Running
- Road cycling
- Gravel riding
- Mountain biking
- Triathlon
- Marathon racing
- Ultra-running
- Adventure racing
- Hiking and outdoor endurance activities
Whether you're heading out for a one-hour run or building a complete race-day nutrition strategy, Hammer Gel provides dependable fuel whenever you need it.
Added Amino Acids for Endurance Support
Hammer Gel offers more than just calories.
Each serving includes carefully selected amino acids to complement the carbohydrate formula and support endurance exercise during prolonged activity.
Combined with intelligent pacing, hydration and electrolyte replacement, Hammer Gel forms an important part of Hammer Nutrition's complete endurance fueling system.
Easy on the Stomach
One of Hammer Nutrition's defining principles has always been digestive comfort.
Many endurance athletes experience gastrointestinal issues from products containing excessive sugars, highly acidic formulations or unnecessary additives.
Hammer Gel is designed to be:
- Easy to digest
- Less sweet than many conventional gels
- Gentle on the stomach
- Suitable for prolonged endurance exercise
This makes it particularly popular among runners, cyclists and triathletes who have struggled with traditional energy gels during long events.
A More Measured Fueling Philosophy
Hammer Nutrition believes endurance performance is about supplying the body with the calories it can effectively use rather than simply consuming the maximum amount possible.
This measured approach has helped thousands of endurance athletes develop sustainable nutrition strategies that support long-distance performance while remaining comfortable throughout training and racing.
Many athletes who prefer a more balanced approach to fueling also appreciate Hammer Gel's complex carbohydrate formula, particularly those looking to avoid the very high sugar intakes associated with some modern fueling strategies.
If you have diabetes or another medical condition affecting blood glucose regulation, you should always work with your healthcare professional to determine the most appropriate nutrition strategy for your individual needs.
Clean Nutrition You Can Trust
Like every Hammer Nutrition product, Hammer Gel is formulated around quality ingredients rather than marketing trends.
Hammer Gel contains:
- No added simple sugars
- No artificial colours
- No artificial flavours
- No artificial sweeteners
- Gluten-free ingredients
The result is clean, dependable endurance fuel that aligns with Hammer Nutrition's long-standing philosophy of supporting both performance and long-term health.
Outstanding Value with the Hammer Gel Jug
For athletes who train several times each week, Hammer Gel is available in economical refill jugs as well as convenient single-serving sachets.
The Hammer Gel Jug has become a favourite among experienced endurance athletes because it offers exceptional value while reducing unnecessary packaging.
Benefits include:
- Excellent cost per serving compared with single-use gels
- Easy refilling of reusable gel flasks
- Less packaging waste
- Ideal for regular training
- Free flask
- Perfect for long rides, marathon preparation and endurance blocks
Many cyclists, runners and triathletes use the Gel Jug for everyday training while carrying individual sachets for racing and travel, making it one of the most cost-effective premium endurance fuels available.
When Should You Use Hammer Gel?
Hammer Gel is ideal whenever convenient, portable calories are required.
It works particularly well:
Before Exercise
Consume shortly before training or racing to help top up available energy.
During Exercise
Ideal for maintaining energy during running, cycling and triathlon without carrying bulky nutrition.
Long-Distance Events
Hammer Gel combines perfectly with HEED® Sports Drink, Endurolytes® and Perpetuem® to create a complete endurance fueling strategy for events lasting several hours.
Practising your race-day nutrition during training is always recommended to determine what works best for your individual needs.
Hammer Gel vs HEED vs Perpetuem
Each Hammer Nutrition fuel has a specific role.
Hammer Gel
Fast, portable energy that's easy to carry during training and racing.
HEED® Sports Drink
Ideal for workouts up to approximately two hours, combining hydration, calories and full-spectrum electrolytes.
Designed for endurance events lasting beyond two to three hours, providing sustained calories from complex carbohydrates, protein and healthy fats.
Many experienced athletes combine all three products depending on the duration and demands of their event.
Build Your Complete Hammer Fueling Strategy
The Best Sugar Free Endurance Gel for Triathlon and Running
Hammer Gel provides fast calories during tough sessions. It is the ideal fuel for stable energy and clean endurance support for every athlete.
Unlike brands that rely on excess sugars, our formula is perfect for Cycling. It delivers long-chain carbohydrates for more power every hour.
Our Hammer Gel is 100% Gluten free for better digestion. This helps prevent the stomach issues often caused by standard sports fuels used now.
Benefits of this Sugar Free Endurance Gel
- Steady energy for long endurance sessions.
- Easy to carry during intense training.
- Natural ingredients with zero refined sugars.
- Lower risk of insulin spikes or GI distress.
- Smooth texture and non-sweet, versatile taste.
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Best for: sessions under or over 2 hours Use for: steady energy hourly + electrolytes Good if you: Run, Cycle or are a Triathlete Start with: 1-2 gels per hour as required Pair with Endurolytes fizz or Endurolytes capsules to manage your levels. Also use Bars or Perpetuem solids for vital protein support during long efforts. Every product is backed by our guarantee. View here for details on our quality promise to you. It is critical for longer endurance sessions that you keep calories at a fixed rate of 120-180 max per hour to maintain performance. |
Key features include:
- Smooth texture for easy use on the move.
- Optimised formula for better performance.
- Easy to digest with no GI distress.
- Suitable before exercise or during long efforts.
- 12 delicious flavours for athletes.
Hammer Gel is built for training and racing. It is a popular choice for marathons, ultra events, and sportives while keeping levels peaked.
Its compact size fits a jersey pocket easily. Use it whenever you need clean energy to sustain your performance during a competition.
KEY BENEFITS & USE
- Ideal for long sessions and hard training days.
- Small, portable, and easy to carry on the run.
- Smooth texture that goes down easily under stress.
- Versatile use before or during any long effort.
Since it is concentrated, you can sip it slowly with water. This method ensures controlled fuelling for results during any endurance race.
Typical use involves consuming one serving 15 minutes before you start. Repeat this every 45 to 60 minutes throughout your intense exercise.
This premium endurance product is perfect for any athlete. Experience the difference with a clean fuel source that truly supports your goals.
Let customers speak for us
great taste! great weight to calorie ratio! thanks
Great quality feel and easy to drink from whilst riding.
No plastic smells either.
Just need a few different colours?
Help me through a 70 miler. Would recommend 👌
In my basket for more
Helped on a climb in 34c heat…. Yum flavour too
I've been using these for years and feel they give me a good foundation for my health.
Easy to take and and did the job. Meant I could drink plain water without missing out on electrolytes
My go to product to supplement my electrolyte needs.
Easy to use and nice taste.
On Saturday 14th September I stood on the start line at Bewts Y Coed. This was my 3rd 100 miler this year.
I have used Hammer since around 2010 in my Ironman days. As of today I have completed 428 marathons ‘all official races’ around the globe.. also quite a few ultras in my time.
I have used Recoverite on multi day ultras for the last 10 years. Great mix and flavour. I have converted many to this product.
Seems to be really helping recovery from my knee strain. I had a similar issue a couple of years ago which took weeks to sort. Fair do’s it doing what it says it will.
Tasty and light on the stomach.
I will definitely order many more of these
Frequently Asked Questions
How long will my delivery take and how much does it cost?
Orders placed before 2:00 PM (UK time) are dispatched the same working day. Standard delivery to mainland Great Britain takes 2–5 days at a flat rate of £3.50, or free on orders over £10.
Large tubs are automatically upgraded to DPD next-day delivery. Shipping to Northern Ireland, the Channel Islands, and the Scottish Highlands costs £4.50, or free on orders over £80.
Can I change or cancel my order after placing it?
Because we process and dispatch orders quickly, we are usually unable to modify products, delivery methods, or addresses after submission.
To cancel an order, you must contact us on the same calendar day it was placed. If dispatch has already occurred, you can return the unused items within 14 days at your own shipping expense.
What is your returns policy if I change my mind?
You have 14 days from the day after delivery to cancel your order. Items must be unused, in their original packaging, and in resaleable condition. Important Step:
You must email info@hammernutrition.co.uk first to obtain a Returns Authorisation Number and a free Royal Mail returns sticker; unauthorised returns cannot be processed.
Note that opened, sealed supplements cannot be returned for hygiene reasons.
What should I do if my order is damaged, faulty, or incorrect?
Check your parcel immediately upon arrival. If there is an issue, notify us within 48 hours of delivery at info@hammernutrition.co.uk.
Please include your order number, a description of the issue, and photos of the damaged items and packaging. We will provide a free replacement or full refund.
How long do refunds take to process?
Once your return is received, inspected, and approved, we process refunds back to your original payment method (card, PayPal, or bank transfer).
This typically takes place within 7 working days, and always within a maximum window of 30 days.
Are Hammer Nutrition products safe for drug-tested athletes?
Yes. Key products within our range—including Endurolytes (4ct/120ct), Endurolytes Extreme (3ct/120ct), Endurolytes Extreme Powder, and Endurolytes Fizz - are officially Informed Sport certified.
Additionally, our products are manufactured in strict ISO, GMP-compliant, and SQF Level 3 Certified facilities to ensure the highest standards of food safety and purity.
What do you use to flavour your sports nutrition products?
We use only premium ingredients with zero artificial flavours, artificial sweeteners, or chemical colorants.
Our natural flavours are extracted from real food sources (such as fruits, essential oils, and botanicals) in full compliance with FDA regulations.
They are entirely derived from non-allergenic materials and are formulated for a clean, subtle, non-sweet taste.
What should I do if my order has not arrived?
Estimated transit times are 2–5 days. If your parcel has not arrived within 5 days of placing your order, notify us immediately at info@hammernutrition.co.uk.
We will launch an investigation with the carrier and provide updates or arrange a replacement where appropriate.
Do you accept backorders for out-of-stock items?
No, we do not accept backorders. If an item is currently unavailable, you can enter your email address in the "email me when back in stock" widget directly on the product page to receive an automated real-time notification the moment inventory is replenished.
Are your supplements suitable for specific dietary restrictions?
Our clean sports nutrition range is formulated to support optimal body function and is completely free from gluten, artificial preservatives, and artificial colorants.
If you have specific medical conditions or severe allergen concerns, we recommend checking the explicit ingredient panels or consulting a healthcare professional prior to consumption.