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BETA Fuel + Electrolyte Gels
A dual-source energy gel with added electrolytes for endurance
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Nutritional Information


All Science in Sport products are certified under the strict guidelines of the INFORMED Sport Programme. To achieve this, an independent organization (LGC Assure) with an accredited, independent laboratory that’s been testing for banned substances for over 20 years, rigorously tests our products to detect all compounds on the World Anti-doping Association Banned Substances list.
Informed Sport
Providing assurance for athletes, All INFORMED Sport certified Science in Sport products are rigorously tested, screening for all compounds on the WADA Banned Substances list.
How It's Tested
1. Product Review
2. Lab Tests (3+)
3. Batch Tests
4. Random Tests
Supplement Testing Labs
Driven by innovation and excellence, INFORMED Sport is the leading independent supplement testing provider, specialising in drug surveillance, doping control and supplement analysis.
Next Working Day Delivery Information:
Weekdays: Orders placed before 6:30pm will be delivered the next day - including on Saturdays.
Weekends: Orders placed before 1pm will be delivered the next day - including Sundays.
Bank Holidays: Orders will not be delivered on Bank Holidays. Any orders placed on a Bank Holiday will not be collected from our warehouse until the next non-holiday day, for delivery the following day.
Please note that Next Day Delivery excludes these postcodes: AB31-56, BF (all), BT (all), FK17-21, GY (all), HS (all), IM (all), IV (all), KA (all), KW (all), PA20-80, PH (all), TR21-25, ZE (all)
Please see specific promotion Terms & Conditions for details BFPO Addresses We do ship to BFPO addresses (with Royal Mail) but for active combat zones there is a strict 2kg weight limit (as with all deliveries to BFPO addresses), so please take this into account when ordering. As a guide, with careful packaging we can just get away with a 1.6kg tub. All orders under this weight limit will be treated as standard UK orders. All orders over this weight will be priced incrementally according to their weight (£5 per 2kg increase). If you have any queries regarding a BFPO address, please contact our Customer Service Team who will be happy to assist with your order.
MAXIMISE YOUR PERFORMANCE
For athletes engaging in prolonged moderate to high-intensity exercise, >2 h in duration, to simultaneously deliver both carbohydrate and key electrolytes for when you need it most.
OPTIMAL HYDRATION
Contains 200mg of sodium per gel
SUSTAINED ENERGY
Contains 40g of carbohydrate per gel
DUAL SOURCE FORMULATION
An optimal ratio of 1:0.8 maltodextrin to fructose
DESIGNED FOR LONGER
A superior fuelling solution for exercise > 2 hours
- Vitamin B1 & B2 contribute to carbohydrate conversion
- Vitamin B6 aids protein metabolism.


ENERGY AND HYDRATION COMBINED
During warm weather or longer endurance exercise sessions, when sweat rates are higher than normal, your body can lose essential electrolytes through sweating. The BETA Fuel Energy + Electrolyte Gel is a dual source, carbohydrate energy gel designed with added electrolytes that can help replace those essential electrolyte losses, helping the body to maintain fluid balance and provide fast-acting energy.
A superior fuelling solution for endurance athletes undertaking exercise lasting 2 hours or more, when aiming to reach fuelling targets of between 90-120g of carbohydrate per hour.
WHY CHOOSE?
- Helps maintain carbohydrate availability during prolonged exercise
- Replaces some of the key electrolytes that are lost in sweat during exercise .
- In the context of prolonged exercise, consumption of dual source blends can induce superior rates of exogenous carbohydrate oxidation when compared with single source formulations (10)
- BETA fuel range has been proven to induce minimal gastrointestinal discomfort during prolonged exercise (1)
- Taking 1-2 gels per hour provides a highly effective fuelling solution in those warmer situations, that is designed to deliver both carbohydrates and essential electrolytes to support optimal performance (9).




SUGGESTED USE
For training and competition completed in warmer ambient conditions across a duration of 2 hours or longer, consume 2-3 gels per hour to deliver up to 80-120 g of carbohydrate per hour during exercise. Achieve this fuelling target by consuming one gel every 20 minutes of exercise.
Can be consumed alongside other products in the BETA Fuel range to provide a mix and match approach to fuelling with 80-120 g of carbohydrate per hour.
ENGINEERED FOR ENDURANCE
FORMULATED BY SCIENCE
Carbohydrate containing electrolyte solutions can help to improve sodium balance during exercise, thereby stimulating thirst, promoting hydration and fluid retention during exercise. This is particularly beneficial during exercise in hot and humid conditions or for individuals with elevated sweat rates.
FUEL WITH CARBOHYDRATES
It is recommended to consume between 60-90g of carbohydrates per hour during exercise


FUEL WITH CARBOHYDRATES
BETA Fuel Energy + Electrolyte Gel forms part of Science in Sport’s advanced endurance fuelling range, alongside powders and chews. Each gel delivers 40g of carbohydrate in an optimised 1:0.8 maltodextrin-to-fructose ratio, designed to enhance carbohydrate absorption (1), promote power output (1), and minimise gastrointestinal (GI) discomfort (1). For endurance athletes, particularly during events lasting longer than 2 hours, carbohydrate intakes of 90 - 120g per hour is critical for sustaining maximal performance. BETA Fuel Energy + Electrolyte Gel offers a convenient, single-serving solution, providing 40g of dual-source carbohydrate with minimal GI distress.
Research demonstrates that fuelling with BETA Fuel gels at 120 g/hour during 3 hours of cycling reports peak exogenous carbohydrate oxidation rates of 1.6 g/min (1). This confirms the superiority of the 1:0.8 ratio over traditional 2:1 blends and highlights the metabolic advantages of dual-source carbohydrates in prolonged endurance performance (2).
Furthermore, consuming three gels per hour (120g/hour) not only supplies 50% of energy needs in the third hour of exercise but also helps maintain carbohydrate availability, delaying the shift to fat oxidation and preserving performance (1). Importantly, BETA Fuel gels are oxidised at rates comparable to BETA Fuel drinks and chews, enabling flexible fuelling strategies across formats while achieving optimal carbohydrate delivery (1).
1. Hearris et al. (2022). 13C-glucose-fructose labeling reveals comparable exogenous CHO oxidation during exercise when consuming 120 g/h in fluid, gel, jelly chew, or coingestion; J Appl Physiol, 132(6), 1394-1406.
2. O'Brien et al. (2013). Fructose-maltodextrin ratio governs exogenous and other CHO oxidation and performance. Med Sci Sports Exerc, 45(9): 1814 - 1824.
3. Shirreffs et al. (2011). Fluid and electrolyte needs for training, competition, and recovery. J Sports Sci, 29: 39 - 46. .
4. Choi et al. (2021). Effects of Electrolyte Supplements on Body Water Homeostasis and Exercise Performance during Exhaustive Exercise. Applied Science, 11(19): 9093
5. McCubbin et al. (2024). Effect of personalised sodium replacement on fluid and sodium balance and thermophysiological strain during and after ultra endurance running in the heat. Intr J Sports Physiol Perform, 19(2); 105 – 115.
6. Patterson and Gray (2007). Carbohydrate-Gel supplementation and endurance performance during intermittent high-intensity shuttle running. Int J Sport Nutr Exerc Metab, 17(5): 445 - 455.
7. Ali and Williams (2009). Carbohydrate ingestion and soccer skill performance during prolonged intermittent exercise. J Sports Sci, 27(14): 1499 – 1508.
8. Willems et al. (2011). Effects of pre-exercise ingestion of a carbohydrate-electrolyte gel on cycling performance. J Int Soc Sports Nutr, 8(1), 28.
9. Carbohydrate solutions contribute to the improvement of physical performance during a high-intensity and long-lasting physical exercise in trained adults. The beneficial effect is obtained only by trained adults performing high-intensity (at least at 65 % of the VO2max) and long-lasting (at least 60 min) physical exercise.
10. Jentjens et al. (2004). Oxidation of combined ingestion of glucose and fructose during exercise. J Appl Physiol,96: 1277-1284.
PROMOTE HYDRATION WITH ELECTROLYTE INTAKE
Maintaining hydration improves muscle contractile efficiency, promotes recovery and maintains cognitive function.


PROMOTE HYDRATION WITH ELECTROLYTE INTAKE
In addition to carbohydrate provision, the inclusion of additional electrolytes can provide a further performance benefit by replacing some of the key electrolytes that are often lost in sweat during exercise (3,4,5,6,7,8). The provision of electrolytes, particularly sodium, during exercise can help to improve sodium balance during exercise, thereby stimulating thirst, promoting hydration and fluid retention during exercise (3,4). For these reasons, the BETA Fuel Energy + Electrolyte Gel is especially beneficial during exercise completed in warmer ambient training or competitive conditions and when sweat rate is higher than normal, thereby supporting thermoregulation and overall physiological and perceptual function (3).
The BETA Fuel Energy + Electrolytes Gel therefore provides a highly effective fuelling solution in those warmer situations were consuming up to 120g of carbohydrate per hour is the fuelling target.
1. Hearris et al. (2022). 13C-glucose-fructose labeling reveals comparable exogenous CHO oxidation during exercise when consuming 120 g/h in fluid, gel, jelly chew, or coingestion; J Appl Physiol, 132(6), 1394-1406.
2. O'Brien et al. (2013). Fructose-maltodextrin ratio governs exogenous and other CHO oxidation and performance. Med Sci Sports Exerc, 45(9): 1814 - 1824.
3. Shirreffs et al. (2011). Fluid and electrolyte needs for training, competition, and recovery. J Sports Sci, 29: 39 - 46. .
4. Choi et al. (2021). Effects of Electrolyte Supplements on Body Water Homeostasis and Exercise Performance during Exhaustive Exercise. Applied Science, 11(19): 9093
5. McCubbin et al. (2024). Effect of personalised sodium replacement on fluid and sodium balance and thermophysiological strain during and after ultra endurance running in the heat. Intr J Sports Physiol Perform, 19(2); 105 – 115.
6. Patterson and Gray (2007). Carbohydrate-Gel supplementation and endurance performance during intermittent high-intensity shuttle running. Int J Sport Nutr Exerc Metab, 17(5): 445 - 455.
7. Ali and Williams (2009). Carbohydrate ingestion and soccer skill performance during prolonged intermittent exercise. J Sports Sci, 27(14): 1499 – 1508.
8. Willems et al. (2011). Effects of pre-exercise ingestion of a carbohydrate-electrolyte gel on cycling performance. J Int Soc Sports Nutr, 8(1), 28.
9. Carbohydrate solutions contribute to the improvement of physical performance during a high-intensity and long-lasting physical exercise in trained adults. The beneficial effect is obtained only by trained adults performing high-intensity (at least at 65 % of the VO2max) and long-lasting (at least 60 min) physical exercise.
10. Jentjens et al. (2004). Oxidation of combined ingestion of glucose and fructose during exercise. J Appl Physiol,96: 1277-1284.
Reviews
Reviews
by Ghanim Al-Romaihi
11/09/2025
by FOGLI EDGARDO
21/07/2025
recently started to use it, like it

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