10 Best Marathon Running Gels in The UK

Last updated on 15/08/2025

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MAURTEN Gel 100 Energy Gel - 12-Pack of 40g - 25g Carbohydrates per Serving - Stomach-Friendly Patented hydrogel Technology for Cycling and Running - Natural & Free of Color or preservatives

3% Off

Why We Love It

Revolutionizes conventional gel energy intake.
Supercharges carbohydrate absorption rate.
Guaranteed quality from Maurten.

Main Highlights

【NOT YOUR AVERAGE GEL】Unlike conventional syrup mixes, Gel 100 100 is a hydrogel with a unique fructose to glucose ratio (0.8:1).
【OPTIMIZED CARBOHYDRATE INTAKE】Contains 25g of carbohydrates per serving, ideally designed for endurance sports like long-distance running, cycling, and triathlon. Enables intake of 100g of carbohydrates per hour.
【HYDROGEL TECHNOLOGY】The carbohydrates in Gel 100 are delivered directly from the stomach to the intestine through our patented hydrogel technology, allowing for faster absorption into the body and reducing the risk of stomach discomfort during activity.
【NATURAL INGREDIENTS】 Relies on pure, natural ingredients without added flavors.
【MAURTEN QUALITYT】Trust in the proven and high-quality formulation of MAURTEN, the leading expert in sports nutritional supplements. Store at room temperature between 10 to 30°C (50 to 85°F).

Science In Sport GO Isotonic Energy Gels, Running Gels with 22 g Carbohydrates, Low Sugar, Orange Flavour, 60 ml Per Serving (30 Pack)

24% OffFree Shipping

Why We Love It

High carbohydrate, easily digestible gel.
Low sugar, avoids bloating.
Vegan approved, gluten free.

Main Highlights

EASY ENERGY SUPPLY: The SiS gel was the first isotonic energy gel on the market, delivering valuable carbohydrates quickly and easily during exercise. Ideal for activities such as running or cycling
EASY TO DIGEST: Thanks to its isotonic formulation, the gel is easy to digest and can be consumed without water. This prevents the feeling of fullness that can occur with excessive water intake
POWER GEL BOOSTS ENERGY RESERVES: Thanks to its convenient format, the carbohydrate gel is easy to carry and quickly ready for consumption to help delay fatigue caused by depleted carbohydrate stores
VEGAN ENERGY GEL: Sports gel with a 100% vegan formula. This special energy booster from SiS is also gluten-free.
SIS SCIENCE IN SPORT: Science in Sport is a pioneer in sports nutrition. Since 1992, we have collaborated with research institutes, elite athletes, and sports scientists

Science in Sport GO Isotonic Energy Gels, Running Gels with 22 g Carbohydrates, Low Sugar, Fruit Salad Flavour, 60 ml Per Serving (30 Pack)

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Why We Love It

Boosts performance with carbohydrate intake.
Ideal for prolonged endurance exercise.
Natural flavors, easy digestion.

Main Highlights

EASY ENERGY SUPPLY: The SiS gel was the first isotonic energy gel on the market, delivering valuable carbohydrates quickly and easily during exercise. Ideal for activities such as running or cycling
EASY TO DIGEST: Thanks to its isotonic formulation, the gel is easy to digest and can be consumed without water. This prevents the feeling of fullness that can occur with excessive water intake
POWER GEL BOOSTS ENERGY RESERVES: Thanks to its convenient format, the carbohydrate gel is easy to carry and quickly ready for consumption to help delay fatigue caused by depleted carbohydrate stores
VEGAN ENERGY GEL: Sports gel with a 100% vegan formula. This special energy booster from SiS is also gluten-free.
SIS SCIENCE IN SPORT: Science in Sport is a pioneer in sports nutrition. Since 1992, we have collaborated with research institutes, elite athletes, and sports scientists

GU Energy Gel Espresso Love, GU Naturally Flavored Sports Gel with Caffeinated On-The-Go, Energy Gels 24 Pack Espresso Love Flavour for Cycling and Marathon, Sports Nutrition with Electrolytes

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Why We Love It

Maximizes absorption, reduces stomach distress.
Optimizes hydration through sodium.
Decreases muscle damage, mental fatigue.

Main Highlights

FUEL YOUR PERFORMANCE: GU Energy Gel Espresso Love provides 100 calories, essential electrolytes, and dual-source energy from maltodextrin and fructose, ideal choice for runners, cyclists, and endurance athletes. These Espresso Love gu energy gels for running are designed to fuel your body with fast-absorbing carbs. Ideal for both short and long distances, including marathon energy gel, gu Espresso Love delivers a smooth, sustained boost during activity, whether cycling, or marathon.
SUPPORT YOUR MUSCLE RECOVERY: GU Energy Gel for runners and endurance athletes includes branched-chain amino acids to help reduce muscle damage and mental fatigue, ensuring peak performance. Essential addition to your running energy gel packs, helping you push through those moments in marathons or cycling events. Featuring both carbohydrate and electrolyte sources, GU gels for runners support hydration and energy during long runs, while the caffeine gels for runners provide a mental edge.
CONVENIENT FOR EVERY ATHLETE: For athletes training and racing year-round, GU Liquid Energy Gel is easy to carry and use. Take one packet 5 minutes before activity and every 45 minutes during session. GU energy gels, like GU energy gel caffeine, provide the energy you need for cycling, running & marathon, giving you the fuel for endurance sports. Whether you're tackling a marathon or taking on a tough training, GU energy gels with caffeine deliver the strength you require to keep going strong.
STAY FUELED AND HYDRATED: GU Energy Gel contains 20mg of caffeine and 125mg of sodium in each packet, ensuring you stay fueled and hydrated. These running energy gels for runners and cyclists are packed with electrolytes to replenish during activity. With options like GU gels with caffeine, these energy gel packs offer a fast, effective way to keep your energy levels up without the crash. Available in 12 pk or 4 pk Gel Taster Pack. Reduced stomach distress, ideal for marathon running or cycling.
FOR ENDURANCE ATHLETES: GU Energy Gel Espresso Love is gluten-free, and designed for athletes who need quick, lasting energy. Ideal for marathon runners and cyclists, GU energy gels deliver fast-absorbing carbs and essential electrolytes to power through training or races. Whether you need endurance gels for runners or energy gels cycling, GU energy gel packs keep you going. With options like GU caffeine gels and energy gel packs for runners, it’s the ideal for all endurance nutrition needs.

TRIWONDER Soft Flask Energy Gels Collapsible Water Bottle TPU Folding Running Gels Bottle for Hydration Pack Marathon Jogging Cycling (170ml - 2 Pcs)

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Why We Love It

Specially designed for energy.
Collapsible and space-saving.
Lightweight and easy to drink.

Main Highlights

TPU Material: Made from flexible TPU, this soft flask is free from BPA and odourless, offering a lightweight yet sturdy solution for running, marathons, and cycling
High-Flow Nozzle: The energy gels bottle features a high-flow spout designed for quick and easy consumption of gels
Collapsible Design: This running bottle folds flat when empty, making it ultra-portable for storage in pockets, hydration vests, or running belts
PP Lid: The collapsible bottle includes a PP lid to keep the nozzle clean during outdoor activities like hiking or trail runs
Compact Capacity: Designed to carry running gels, this 170 ml soft bottle fits easily in your gear while providing quick energy for endurance sports

Ronhill Running, Marathon Waist Belt, All Black, O/S

10% Off

Why We Love It

Versatile gel loops for convenience.
Spacious pocket fits large phones.
Customizable fit for optimal comfort.

Main Highlights

8 Gel loops with 2 loop sizes accomodating 32-60ml gels
Large secure stretched zip pocket to accodate even the larger phones
Adjustable stretch strap for custom fit
Easy to use Race number fastener, can sit at front or back
Reflectivity trim for night time visability on the roads

TORQ Running Gels with Electrolytes - 2:1 Maltodextrin: Fructose for Endurance Sports & Optimal Performance | Energy Gels for Running, Cycling & Marathons - 30g Carbs Per Gel | Cherry Bakewell

Why We Love It

Highly versatile for everyone.
Attractive Cherry Bakewell color.
Durable plastic construction.

Main Highlights

Advanced Carbohydrate Energy - Engineered for endurance, each energy gel delivers 30g of fast-absorbing carbohydrates using a 2:1 maltodextrin: fructose ratio. This dual-source fuel system maximises energy uptake to working muscles.
Natural Flavour Formula - Made with natural flavours and no added colours or sweeteners, these running gels are gentle on the stomach and easy to digest during intense activity.
Essential Electrolyte Balance - Our advanced formula includes all 5 key electrolytes: sodium, chloride, potassium, magnesium, and calcium. These essential minerals support hydration and muscle function, helping prevent cramps and fatigue during exercise.
Elite Performance Formula - These energy gels for running stand apart from standard carb gels thanks to their ultra-smooth texture and superior formulation. Designed for rapid digestion and clean energy, they deliver reliable performance in every training block or race scenario.
Smooth, Flavourful Delivery - Enjoy 12 carefully crafted flavours in a silky-smooth consistency that’s easy to consume mid-run or ride. Unlike thick or sticky carb gels, TORQ gels go down effortlessly, helping runners and cyclists fuel quickly without distractions.

HIGH5 Aqua Running Gels Energy - Running Essentials for Quick Release Energy - Natural Fruit Juice & No-Caffeine - Ideal as Running Equipment, Cycling Supplements, Marathon Training (Orange, 20 x 66g)

49% OffFree Shipping

Why We Love It

Peak performance energy boost.
Refreshing taste, light texture.
Perfect portable energy source.

Main Highlights

Fast Energy When You Need It: HIGH5 energy gel delivers 23g of carbs per sachet (95 kcal) for rapid energy release during running, cycling, and endurance sports - Quick absorption carbohydrate gel to achieve peak performance when it matters most
Science-Driven, Athlete-Approved: founded in 1994 by British triathletes, HIGH5 has spent over 30 years developing sports nutrition - Partnering with world-class athletes, we ensure our high energy gels perform under the toughest endurance conditions
Great Performance, Better Taste: made with real fruit juice, HIGH5 carbohydrate supplement offers a light sports drink-like consistency, eliminating the need for water - We believe sports nutrition should fuel your body without tasting artificial
Pure Energy, No Compromise: Vegan-friendly and made with natural ingredients, HIGH5 running gels are free from artificial sweeteners, colourings, and caffeine - A mindful choice tested by professionals and enjoyed by all levels of endurance athletes
A Thoughtful Sports Gift: HIGH5 energy gel packs are a practical training or race-day essential for the endurance-enthusiast in your life - A great pick for running gifts, cycling gifts, and triathlon gifts, perfect for those who push their limits
Efficient Energy Without Discomfort: easily digestible, scientifically formulated multi-carbohydrate energy gel to keep you energised during exercise without bloating - Quick gel fuel helps you stay focused on performance, not your stomach

Number-one Running Belt with Water Bottles(2 x 175ML), Hydration Belt Waterproof Waist Pack Bag Fits iPhones Adjustable Sports Waist Pouch for Marathon Running Hiking Cycling, Black, M

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Why We Love It

Adjustable fit, no slipping.
Durable, comfortable and washable.
Ideal for multiple activities.

Main Highlights

With Two Water Bottles Holder : As a bonus gift, we supply two BPA-free water bottles at 6.5 oz per bottle, so you'll have enough water for short to medium distance runs. Held in place with elastic attachments to prevent them falling out. The design allows you to easily remove the bottles from pockets.
Large Storage and Protection: 20x11cm fanny bag with durable zip keeps your valuable belongings secure inside. Fits large smartphones iPhone Samsung etc. Interior, there are layered pockets to separate your phone from keys, credit cards, money, tissue and other small gadgets.
High Stretchable Anti-slip Waistband: Adjustable elastic running belt and water bottle pocket back with anti-slip design, fits most of waist and eliminate bounce, slipping during exercise.
Durable and Comfortable Waist Pack: Hydration belt made of premium quality neoprene material, providing a snug fit while being sweat and water resistant. durable, stretchable and washable. Fits 27 inch - 59 inch (70cm-150cm) waist.
Multifunctional Sport Bum Bag: Just wear it with the adjustable elastic bands, for night walking, cycling, travelling, hiking, camping, walking, running, cycling and more.

TORQ Running Gels with Caffeine & Electrolytes - 2:1 Maltodextrin: Fructose for Endurance Sports & Optimal Performance | Energy Gels for Running, Cycling & Sport - 89mg Guarana | 6 Pack Sample Box

Free Shipping

Why We Love It

High carbohydrate concentration per gel.
Vegan and gluten-free formulation.
Replaces five vital electrolytes.

Main Highlights

Advanced Carbohydrate Energy - Engineered for endurance, each energy gel delivers 30g of fast-absorbing carbohydrates using a 2:1 maltodextrin: fructose ratio. This dual-source fuel system maximises energy uptake to working muscles.
Natural Flavour Formula - Made with natural flavours and no added colours or sweeteners, these running gels are gentle on the stomach and easy to digest during intense activity.
Essential Electrolyte Balance - Our advanced formula includes all 5 key electrolytes: sodium, chloride, potassium, magnesium, and calcium. These essential minerals support hydration and muscle function, helping prevent cramps and fatigue during exercise.
Elite Performance Formula - These energy gels for running stand apart from standard carb gels thanks to their ultra-smooth texture and superior formulation. Designed for rapid digestion and clean energy, they deliver reliable performance in every training block or race scenario.
Smooth, Flavourful Delivery - Enjoy 12 carefully crafted flavours in a silky-smooth consistency that’s easy to consume mid-run or ride. Unlike thick or sticky carb gels, TORQ gels go down effortlessly, helping runners and cyclists fuel quickly without distractions.

8.8

Excellent

We scanned 164 products

We reviewed these offers relevant to the Marathon Running Gels within online retailers such as Amazon, eBay and other local retailers, ensuring we covered all major brands and models. The products we selected come from trusted brands like Maurten, Science in Sport, GU, TRIWONDER, Ronhill, TORQ, HIGH5, Number-one, all of which have a reputation for consistently delivering high-quality products that users love and innovative approaches for function & design.

For the best Marathon Running Gels in the market, we considered we took a deep dive into 821 online reviews , focusing on elements like user satisfaction, performance in real-world conditions, and long-term reliability. Our ranking also evaluates each review’s relevancy, authenticity, up-to-dateness and depth so that the comparison is more sound.

We concluded that:

The clear winner of our analysis is MAURTEN Gel 100 Energy Gel - 12-Pack of 40g - 25g Carbohydrates per Serving - Stomach-Friendly Patented hydrogel Technology for Cycling and Running - Natural & Free of Color or preservatives. We love many things about this product by Maurten. What sets it apart from the competition is Revolutionizes conventional gel energy intake. , Supercharges carbohydrate absorption rate. , Guaranteed quality from Maurten.
The best value product for most shoppers and where user satisfaction is continuously the highest is Science In Sport GO Isotonic Energy Gels, Running Gels with 22 g Carbohydrates, Low Sugar, Orange Flavour, 60 ml Per Serving (30 Pack) by Science in Sport based on online reviews by bloggers, experts and online shoppers.
The biggest bargain at the moment for Marathon Running Gels and the best cost-to-value ratio is HIGH5 Aqua Running Gels Energy - Running Essentials for Quick Release Energy - Natural Fruit Juice & No-Caffeine - Ideal as Running Equipment, Cycling Supplements, Marathon Training (Orange, 20 x 66g)at HIGH5 with a 49% discount.
Our list of the best Marathon Running Gels is updated regularly to reflect new releases and changes in product availability, so be sure to check back often for the latest rankings and discounts.

10 Best Marathon Running Gels in The UK

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Science In Sport GO Isotonic Energy Gels, Running Gels with 22g Carbohydrates, Low Sugar, Variety Pack of Assorted Flavours, 60ml Per Serving (7 Pack)

Science in Sport Beta Fuel Gels Dual Source Energy Gel, Orange Flavour, 40g of Carbs Per Pack, 60 ml Pack (6 Pack)

HIGH5 Energy Gel Pack - Running Gel for Quick Energy Release - Natural Fruit Juice & Caffeine-Free - On-the-Go Sports Nutrition for Runners, Cyclists & Endurance Training (Assorted Flavours, 8 x 40g)

HIGH5 Energy Gels with Electrolytes - Quick Release Sports Gels for Peak Performance - Natural Fruit Juice & Caffeine-Free - Energy Boost for Running, Cycling, Endurance (Raspberry, 5 x 60g)

Science In Sport GO Isotonic Energy Gels, Running Gels with 22 g Carbohydrates, Low Sugar, Orange Flavour, 60 ml Per Serving (6 Pack)

Science In Sport GO Isotonic Energy Gels, Running Gels with 22 g Carbohydrates, Low Sugar, Lemon & Lime Flavour, 60 ml Per Serving (6 Pack)

HIGH5 Run Pack Containing Running Energy, Hydration & Recovery Products

GlucoGel Fast Acting Glucose Energy Gel - Hypostop Gel for Running, Hiking, Cycling, Marathon Liquid Dextrose - Original Unflavoured, 10g per Tube (Pack of 3)

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GU Energy Running Gels - 4 Gel Taster Pack - Sports Energy Gels For Running , Cycling, Triathlon (Strawberry Banana), 32.0 g

We scanned 164 products

We concluded that: