Natusport FUEL+ Chew Bar has been developed for (elite) athletes who want to consume more than 90 grams of carbohydrates per hour. Therefore, FUEL+ products contain relatively more fructose: a glucose-fructose ratio of 1:0.8, compared to 2:1 in our regular sports nutrition.
Why? The absorption of glucose and fructose in the intestine takes place via different transporters. The most important transporter for glucose, the SGLT transporter, becomes saturated at approximately 60 grams of glucose per hour. With a ratio of 2:1, you can add about 30 grams of fructose to this, equivalent to 90 grams of carbohydrates per hour.
Do you want to consume more than 90 grams of carbohydrates per hour? Then a higher amount of fructose can help utilize extra carbohydrates via a different absorption route, via the GLUT5 transporter. At a ratio of 1:0.8, 60 grams of glucose corresponds to 48 grams of fructose: a total of 108 grams of carbohydrates. In short: 2:1 is an excellent ratio for an intake of up to approximately 90 grams of carbohydrates per hour. FUEL+ 1:0.8 was developed for athletes who want to go above that.
If you consume fewer carbohydrates (up to 90 grams per hour), which applies to more than 90% of athletes, choose the standard 2:1 ratio, such as our trusted Chew Energy Bar.
Natural!
At Natusport, we believe that your body performs best on pure ingredients from nature. That is why we consciously choose raw materials sourced from land, sea, and jungle — without unnecessary synthetic additives. This revamped chew bar brings that philosophy together in a powerful formula developed for athletes who demand more from their nutrition.
To make the bars less sticky, Natusport uses a natural coating of carnauba wax, derived from the leaves of the carnauba palm. Combined with coconut oil, this ensures a pleasant bite and a high-quality finish — entirely plant-based. Additionally, the bar contains a touch of sea salt, which not only provides a fresh flavor balance but also helps replenish electrolytes during exercise. In this way, Natusport brings together the best of nature and performance in one innovative chew bar: powerful, practical, and developed for athletes who consciously choose quality.
The FUEL+ Chew Bar distinguishes itself through its pleasant texture. Thanks to the combination of pectin and agar-agar, a natural gelling agent derived from red seaweed, a firm yet soft chew is created that remains easy to eat. Even in warmer conditions, the bar retains its shape and remains pleasant to chew.
Taste fatigue can occur during prolonged exertion. That is why a fresh combination of lemon and raspberry was chosen. The light fruit flavor has been deliberately kept mild so that the chew bar continues to taste pleasant even after several hours of exercise.
The Natusport FUEL+ Chew Bar combines smart sports nutrition with natural ingredients in a practical format. Developed for athletes who want to perform for extended periods and consciously choose quality.
