ENDURE ISOFUEL
ENDURE ISOFUEL
25g CARBOHYDRATES · ELECTROLYTES · NATURAL FLAVOUR
Designed to provide stable energy and effective hydration even after hours of effort — without digestive discomfort.
Flavour: 100% natural freeze-dried lemon, no artificial additives.
20 servings per container.
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Dietary supplement • Developed & manufactured in Slovenia, EU
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Why ENDURE ISOFUEL works when the effort lasts longer
Stable energy
A combination of fast- and slow-releasing carbohydrates ensures a reliable energy supply even after several hours of effort.
Hydration without digestive stress
Electrolytes in ratios that the body tolerates well during prolonged endurance activity.
Drinkability that supports consistency
A completely unsweet taste allows continuous drinking throughout an entire training session or race — even when sweet isotonic drinks become unpalatable.
Collapsible content
PRODUCT HIGHLIGHTS
ENDURE ISOFUEL was designed for use in endurance sports, where proper and sufficient intake of energy and electrolytes is essential.
When developing the product, we carefully selected high-quality ingredients that minimize the risk of digestive discomfort. At the same time, we aimed to create a formula free from unnecessary additives such as sweeteners, artificial flavours, and fillers.
This is what makes our isotonic drink truly unique — its taste is completely natural and not sweet.
We are proud to say that ENDURE ISOFUEL is designed and manufactured exclusively in Slovenia.
RECOMMENDED USE
For shorter or lower-intensity training sessions, mix 2 included scoops with 400 ml of water.
For longer and more demanding efforts, mix 4 scoops with 800 ml of water.
Consume the prepared isotonic drink once per hour during activity.
ENDURE ISOFUEL can be used before and during exercise, and if needed after activity to support rehydration and recovery.
For optimal results and individual adjustments based on the type of effort, see our in-depth guide.
Please note: Do not exceed the recommended daily dose. A dietary supplement is not a substitute for a balanced and varied diet and a healthy lifestyle. Keep out of reach of children.
NUTRITIONAL VALUE AND INGREDIENTS
Nutritional value per 34 g (1 serving = 2 scoops): 100 kcal/418.4 kJ
Fat: 0 g (of which saturated 0 g)
Carbohydrates: 25 g (of which sugars 7 g)
Fiber: 0 g
Protein: 0 g
Salt: 875 mg
Minerals per 34 g: potassium: 70 mg, calcium: 30 mg, magnesium: 20 mg, sodium: 350 mg.
Ingredients: maltodextrin, isomaltulose (as Palatinose™), sodium chloride, potassium chloride, magnesium bisglycinate, calcium bisglycinate, natural lemon fruit, citric acid.
INGREDIENTS EXPLAINED
CARBOHYDRATES
ENDURE ISOFUEL uses a combination of two carbohydrate sources with different absorption rates.
Maltodextrin is a complex carbohydrate derived from corn starch. It is rapidly broken down and provides quickly available energy when it is needed most.
Isomaltulose (Palatinose™) is naturally derived from sugar beet. It is digested more slowly than maltodextrin, resulting in a more even and sustained energy release, ideal for longer efforts.
Together, this combination delivers energy without sudden spikes or crashes — even during prolonged activity.
ELECTROLYTES
When selecting electrolytes, we focused on two key principles: that they are well absorbed by the body and well tolerated during prolonged exercise.
ENDURE ISOFUEL contains electrolytes in ratios that support hydration during endurance training without unnecessary digestive stress.
As a source of sodium, we use natural sea salt.
FLAVOUR
ENDURE ISOFUEL is formulated without artificial flavours, sweeteners, or fillers.
The flavour comes exclusively from real lemon fruit — peeled, freeze-dried, and finely ground.
A small amount of citric acid is added to balance the taste and provide a clean, refreshing finish.
The result is a completely unsweetened flavour that remains pleasant to drink even after hours of effort.