Endurance Fuel: Balanced energy for marathons, ultras, and long trails

During prolonged exertion, everything revolves around a constant energy supply. Eating too little means slowing down, but the wrong foods... Nutrition can actually cause stomach problems or an energy slump. In this collection, you will find sports.Nutrition which is especially suitable for sustained exertion: from marathons to ultras and long days in the mountains.

With the right balance of carbohydrates, electrolytes, and ease of use, you stay strong, sharp, and in control longer.

Why is endurance fuel different?

During a long trail or marathon, your body demands continuous energy. Products in this collection are designed to deliver energy gradually and efficiently without overloading your stomach.

Benefits of endurance sportsNutrition:

• Constant energy during prolonged exertion
• Lower risk of the well-known “man with the hammer”
• Better absorption of carbohydrates over several hours
• Suitable for long runs and ultra races
• Easy to combine with hydration and electrolytes

Especially during training sessions of several hours, a good fueling plan often makes the difference between finishing strong or running completely flat.

Who is Endurance Fuel suitable for?

This collection is ideal for:

• Trail runners who run long distances
• Marathon runners who want to keep their energy stable
• Ultra runners who have to keep eating for hours
• Athletes who train for endurance
• Long bike rides, hikes or multi-sport events

Even if you regularly notice that you run out of energy after 2 to 3 hours, a better combination of carbohydrates and timing can make an immediately noticeable difference.

Which products are suitable for prolonged exertion?

During ultras or long training days, you want to be able to vary your activities. That is why this collection contains different types of endurance. Nutrition:

• Energy gels for fast carbohydrates on the go
• Drink mixes with carbohydrates and electrolytes
• Energy chews for gradual intake
• Energy bars for longer sessions
• Products with multiple carbohydrate sources for optimal absorption

Alternating different textures and flavors keeps eating easier — even when you have been on the road for hours.

How much should you eat during a marathon or ultra?

Many runners eat too little during long efforts. A commonly used guideline is between 60 and 90 grams of carbohydrates per hour, depending on intensity and experience. Training well on Nutrition is just as important as your physical training.

Practical tips for long distances:

• Start eating within the first hour
• Take small amounts every 20–30 minutes
• Switch gels, drinks and solids Nutrition af
• Test your raceNutrition during long training sessions
• Don't forget electrolytes and hydration

A good fueling plan helps not only your energy, but also your focus, recovery, and muscle function during long races.

FAQ – Endurance Fuel

What is the difference between endurance fuel and fast energy?

Endurance fuel focuses on long-lasting, stable energy supply during efforts of several hours, while fast energy is primarily suitable for short peak moments.

How many carbohydrates do I need per hour?

Most endurance athletes perform optimally with 60–90 grams of carbohydrates per hour. Practicing properly during training remains essential.

Which Nutrition works best during ultras?

Many ultra runners combine gels, drink mixes, chews, and sometimes solid food. Nutrition to prevent taste fatigue and stomach problems.

Can I also use these products during training?

It is precisely during training that you test what works well for your body. This way, you avoid surprises on race day.

Also check out our collections of energy gels, electrolytes, soft flasks, and recovery nutrition for a complete strategy from start to finish.