Quick answer

For runners, magnesium for normal muscle function, a good amino acid supply and restful sleep are especially relevant. Melatonin helps to reduce the time taken to fall asleep, and magnesium contributes to the reduction of tiredness and fatigue. Supplements complement training and nutrition, but do not replace them.

Anyone who runs regularly places particular demands on the body: long sessions, many repetitions of the same movement and the wish to set off fresh again the next morning. Endurance sport thrives on continuity, and continuity is easier to achieve when muscle function, energy metabolism and recovery work well together. In this guide we look at which nutrients play a sensible role for ambitious runners and which Scheunengut products fit purposefully into an endurance routine – honestly classified and without exaggerated promises.

Running places lasting demands on the metabolism: over many kilometres the muscles work in the endurance range, the body loses fluid and minerals through sweat, and the ever-same movement stresses tendons, ligaments and muscles at once. Anyone who keeps up their training over weeks and months quickly notices that it is not the single hard session that makes the difference, but the ability to line up at the start recovered day after day. This is exactly where nutrition and nutrient supply come into view – not as a miracle cure, but as a building block that supports solid foundations.

What matters when the goal is running & endurance

Endurance performance is always an interplay of training, nutrition and recovery. On the nutrient side there are a few building blocks for which the European Food Safety Authority (EFSA) lists authorised statements:

  • Magnesium contributes to normal muscle function, supports normal energy-yielding metabolism and contributes to the reduction of tiredness and fatigue. Magnesium also contributes to electrolyte balance – a point that is relevant for many when sweating over long runs.
  • Melatonin helps to reduce the time taken to fall asleep (the beneficial effect is obtained by consuming 1 mg shortly before going to bed). Good sleep is the basis of any recovery after running.
  • Essential amino acids are the building blocks of the body's own proteins. The body cannot produce them itself, so they must be supplied through the diet – especially with a high training volume, a topic that many endurance athletes keep an eye on.

The honest classification is important: nutrients do not optimise personal bests and replace neither training nor a wholesome diet. They can merely help to support normal body functions such as muscle function and energy metabolism. Many of these functions only come into play in interplay: a well-fuelled energy metabolism is of little use without restful nights, and the best muscle function is worthless if fluid and electrolyte intake during long runs is neglected. For all statements mentioned here, the clear EU framework applies: we name exclusively functions that are actually authorised and deliberately avoid performance or healing promises that cannot be seriously substantiated.

Our product recommendations

The following products can be used individually or as a coordinated routine. Choose based on where your focus lies – on muscle and electrolyte supply, on protein intake or on restful sleep. All products rely on well-thought-out, clearly declared formulations.

Magnesium Complex

Our Magnesium Complex combines four bioactive magnesium sources with 400 mg of elemental magnesium. For runners this is particularly interesting because magnesium contributes to normal muscle function and to the reduction of tiredness and fatigue. Anyone who sweats a lot over long sessions will find an uncomplicated basic supply here, because magnesium additionally contributes to electrolyte balance and to normal energy-yielding metabolism. The combination of several magnesium compounds ensures good availability.

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Amino Acid Complex

The Amino Acid Complex delivers all essential amino acids plus four co-factors. Amino acids are the basic building blocks of the body's own proteins – from the muscles to many enzymes. For endurance athletes with a high weekly volume, a conscious protein supply is a constant topic anyway; this complex supplements the diet with a complete amino acid profile. It is especially practical for anyone who, for reasons of time or taste, does not always align their meal plan optimally with protein.

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Coenzyme Q10

Our Coenzyme Q10 consists of high-dose ubiquinone from plant fermentation. Coenzyme Q10 is a substance the body produces itself, present in the cells and long popular among athletes. We deliberately make no health-related promises here, but point to the pure, plant-fermented formulation and the high bioavailability of the ubiquinone. For endurance athletes who want to purposefully add this molecule to their routine, it is an uncomplicated choice.

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Melatonin Sleep Complex

The Melatonin Sleep Complex combines 1 mg of melatonin per tablet with magnesium. Melatonin helps to reduce the time taken to fall asleep – and because endurance performance depends heavily on nightly recovery, this closes the circle between training and regeneration. The additional magnesium contributes to normal muscle function. The 365-count pack comfortably lasts through a whole season.

View Melatonin Sleep Complex

How to make the right choice

Which of the products presented make sense for you depends on your own training routine. Anyone who completes many long sessions in the heat and sweats heavily should focus more on magnesium and electrolyte supply. Anyone who does not always manage optimal protein intake in everyday life benefits more from a complete amino acid profile. And anyone who struggles to wind down after intense blocks will find in the Melatonin Sleep Complex an evening companion, because melatonin helps to reduce the time taken to fall asleep.

A good approach is to start with a single product that closes the biggest gap, rather than taking several preparations in parallel right away. That makes it easier to recognise what actually does you good and to keep track of the amounts consumed. Also pay attention to the recommended intake: more than the stated daily dose brings no additional benefit and, for some nutrients, is even undesirable.

Regularity also counts more than the single intake. Nutrients unfold their contribution to normal body functions when they are supplied continuously and as part of a balanced diet – not as a short-term booster before a competition. Anyone who firmly builds the products into their weekly routine gets more out of them in the long run than with sporadic use on individual hard days.

And finally, it is worth looking at the basic supply: anyone who already eats healthily and varied often needs less supplementation than advertising suggests. Regard supplements as the fine-tuning of a solid foundation – exactly then they are a sensible building block for runners.

Fundamentals first

No preparation turns a training plan into a better runner. Honestly, the decisive levers remain elsewhere: a well-thought-out training structure with enough easy sessions, enough sleep, a carbohydrate- and protein-conscious diet as well as consistent fluid and electrolyte intake. Anyone who runs a lot should also pay attention to a good iron and vitamin D supply – this can be checked medically if needed. Supplements are then sensible when they complement this basis, not when they are meant to replace it. So regard the products presented here as building blocks that round off an already solid routine.

Another honest point: nutrient needs are individual. Body weight, training volume, diet and stage of life influence which building blocks are actually relevant for you. Anyone who runs vegan or vegetarian pays attention to different things than someone on a mixed diet. Instead of stacking as many preparations as possible, it is worth purposefully closing the gaps that really exist in your own everyday life. This clarity saves money and keeps your own routine manageable – and it ensures that you get out of supplements what is realistically possible.

Frequently Asked Questions (FAQ)

Which nutrients are especially relevant for runners?

Among the frequently discussed building blocks is magnesium, which contributes to normal muscle function and to the reduction of tiredness and fatigue. An adequate protein or amino acid supply is also a constant topic with a high training volume, as is restful sleep as the basis of recovery.

Why does sleep play a role for endurance?

The body regenerates during sleep. Melatonin helps to reduce the time taken to fall asleep, and a restful night is the basis for running again the next day with enjoyment and fresh legs.

Does magnesium replace a sports drink?

No. Magnesium contributes to electrolyte balance, but is no substitute for a needs-based fluid and carbohydrate intake during long sessions. Both fulfil different tasks and complement each other rather than replacing one another.

Can I combine several of these products?

In principle the products can be combined, for example magnesium during the day and the Melatonin Sleep Complex in the evening. Stick to the recommended intakes stated on the packaging and do not overdo it with the number of parallel preparations.

Are these products suitable for recreational runners?

Yes. Whether an ambitious marathon preparer or an after-work runner – the nutrients presented support normal body functions and are not limited to a particular performance level.

Note: Food supplements are no substitute for a balanced diet and a healthy lifestyle. In the case of pre-existing conditions, during pregnancy and breastfeeding, or when taking medication, please consult your doctor before use.

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Health notice: This guide is for general information purposes only and does not replace individual medical or pharmaceutical advice. Food supplements are not a substitute for a balanced, varied diet and a healthy lifestyle. If you have health concerns, are pregnant or breastfeeding, or are taking medication, please consult a doctor or pharmacist. How our guides are created →

Sources

  1. EU Register of authorised health claims — Europäische Kommission, 2024
  2. European Food Safety Authority (EFSA) — EFSA, 2024
  3. Reference values for nutrient intake — Deutsche Gesellschaft für Ernährung, 2024
  4. Food supplements: consumer information — Verbraucherzentrale, 2024
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