Sport & Training

Get to know your muscles better!

Magnesium contributes to normal muscle function: discover which cofactors are involved and how to get enough through your diet.

•18. Juni 2025• 2 min Lesezeit • Medizinisch geprüft von Christian Lazar am
Understand your muscles better! Strong woman showing off her muscles in front of a mountain landscape.

The function of our muscles involves a complex interplay of various nutrients. A key role is played by magnesium, a mineral essential for muscle contraction and relaxation. However, magnesium can only reach its full potential in combination with other important nutrients known as cofactors. In this article, we explore how to ensure you get enough magnesium and its cofactors, and consider when dietary supplements may be useful.

The Role of Magnesium in Muscle Function

A table showing a list of all the different forms of magnesium
A list of magnesium forms, from chloride to taurate - involved in over 300 enzyme reactions.

Magnesium is responsible for activating over 300 enzyme reactions in the body, including those important for muscle function and energy production. A magnesium deficiency can lead to muscle cramps, weakness and fatigue.

The Importance of Cofactors

1. Vitamin D

Vitamin D promotes the absorption of magnesium in the intestines and its storage in the bones. Adequate vitamin D is essential for optimal magnesium absorption.

2. Calcium

Calcium and magnesium work together to ensure healthy muscle contraction. An ideal ratio of calcium to magnesium is approximately 2:1. This means that for every 1000 mg of calcium, there should be approximately 500 mg of magnesium.

3. Vitamin B6

Vitamin B6 improves the absorption and storage of magnesium and supports energy production in the muscles.

4. Zinc

Zinc and magnesium work together to support muscle strength. Zinc is also important for protein synthesis and therefore for building muscle.

The Sensible Use of Dietary Supplements

A selection of natural supplements for an active lifestyle
Capsules, strawberries, walnuts and sesame seeds - supplements can be useful when nutritional needs are higher.

Although a balanced diet is the foundation of good nutrition, dietary supplements can be useful in certain cases. This is particularly true when diet alone does not provide enough nutrients or when nutritional needs are higher, as can be the case for athletes.

Magnesium

A supplement of 300 to 400 mg of magnesium per day may be beneficial for adults, especially during intense physical activity or periods of stress.

Vitamin D

Vitamin D supplementation depends heavily on individual exposure to sunlight. On average, a daily dose of 800-1000 IU of vitamin D3 may be recommended.

Calcium

When supplementing with calcium, care should be taken to maintain a balanced ratio of calcium to magnesium. A daily intake of approximately 1000-1200 mg of calcium.

Zinc

A daily supplement of 10 to 15 mg of zinc can support muscle health and the immune system.

Here you'll find optimally dosed  Magnesium Citrate Capsules, with highly bioavailable and organic magnesium citrate:

Magnesium Citrate Capsules - 2 capsules, 246 mg magnesium
Magnesium Citrate Capsules from Vitalplant - 246 mg of magnesium per daily serving

Conclusion

To best support muscle function, a balanced combination of magnesium, its cofactors and appropriately chosen dietary supplements is essential. However, everyone is unique, and needs can vary. It is therefore advisable to consult a doctor or nutritionist before taking dietary supplements to develop a plan tailored to your personal needs. This can help ensure your muscles get everything they need to stay strong and healthy.

Dr. Anna Falk
Über den Autor

Dr. Anna Falk

Dr. rer. nat. in Organischer Chemie · Wissenschaftliche Leiterin

Dr. Anna Falk ist promovierte Chemikerin (summa cum laude) und Alexander von Humboldt-Stipendiatin. Bei Vitalplant verantwortet sie die evidenzbasierte Produktentwicklung und Qualitätsanalytik – jede Rezeptur auf Basis messbarer Daten.

Organische ChemieNaturstoffanalytikEvidenzbasierte ProduktentwicklungSporternährung
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Christian Lazar
Medizinisch geprüft von
Christian Lazar
Approbierter Apotheker · Gründer & Geschäftsführer

„Dieser Artikel wurde vor Veröffentlichung auf wissenschaftliche Korrektheit und pharmazeutische Genauigkeit geprüft.“— Geprüft am 10. Oktober 2026

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