02.04.2025

Magnesium – what is it good for? [2025]

Magnesium: The underestimated key to health, energy and inner balance

Introduction
Magnesium is one of the most important minerals for the human body – yet its significance in everyday life is often underestimated. While vitamins like C and D receive a lot of attention, magnesium leads a rather quiet existence. However, it is involved in over 300 enzymatic processes and plays a central role in our health, energy production, muscle and nerve function, as well as sleep and the cardiovascular system. In this article, you will learn why magnesium is so essential, how a deficiency manifests itself, and what you can do to ensure your body is optimally supplied.

What is magnesium?

Magnesium is an essential mineral that our bodies cannot produce on their own – we must therefore obtain it through food or supplements. It is a so-called macroelement, meaning it is present in significant amounts in the body, particularly in bones, muscles, and cells. Magnesium is available in various compounds that differ in their bioavailability. The most common forms include magnesium citrate, glycinate, oxide, malate, and chloride. Each of these forms has its own properties and is suitable for different needs – from rapid absorption in cases of acute deficiency to a gentler effect for sensitive digestive systems.

How does magnesium work in the body?

Magnesium's effects on the body are multifaceted. It plays a key role in energy metabolism by enabling the formation and utilization of adenosine triphosphate (ATP)—the primary energy source for our cells. Furthermore, it is essential for muscle and nerve function, as it supports nerve impulse transmission and has a relaxing effect on muscles and the nervous system. Without sufficient magnesium, muscle cramps, tremors, nervousness, or fatigue can occur. Magnesium is also essential for DNA synthesis, insulin sensitivity, and the stabilization of cell membranes. In short, optimal magnesium levels are crucial for physical and mental well-being.

Magnesium and energy production

Magnesium is directly involved in the conversion of food into energy. The so-called citric acid cycle, in which glucose, fats, and amino acids are converted into ATP, only functions properly if sufficient magnesium is present. A magnesium deficiency can disrupt energy production in the cells – often manifesting as fatigue, difficulty concentrating, or general exhaustion. People with chronic energy deficiency or fatigue symptoms often benefit significantly from targeted magnesium supplementation.

Magnesium for muscles and movement

Magnesium plays a crucial role in muscle regulation. It controls the interplay of calcium and potassium, which is responsible for muscle contraction and relaxation. A balanced magnesium level not only prevents muscle cramps and twitches but also improves physical performance. Athletes, in particular, have an increased need for magnesium because they lose it through heavy sweating. Even everyday tension or back pain can be caused by a hidden magnesium deficiency.

Influence on the nervous system

The nervous system relies on a stable supply of magnesium. This mineral supports the transmission of stimuli between nerve cells, protects against overexcitation, and has an overall calming effect. During stressful times, sleep deprivation, or mental strain, magnesium can help strengthen the nervous system. Studies show that magnesium has an anxiolytic effect – meaning it reduces anxiety – and thus has a positive influence on mental health and stress resilience.

Sleep and magnesium

Magnesium has a relaxing effect and promotes nighttime regeneration. It supports the body's own production of melatonin, the sleep hormone, and also has a calming effect on the central nervous system. People with difficulty falling asleep or frequent nighttime awakenings often report better sleep when they take magnesium regularly – especially in a highly bioavailable form such as magnesium glycinate or citrate.

Magnesium and the psyche

A balanced magnesium level is also essential for mental health. This mineral is involved in the regulation of neurotransmitters such as serotonin and dopamine and can thus have a positive influence on depressive moods, nervousness, and inner restlessness. Magnesium is also increasingly recommended as a supportive therapy for burnout symptoms. In combination with stress management and exercise, magnesium can make a valuable contribution in this regard.

Cardiovascular health

Magnesium regulates heart rhythm, promotes vascular relaxation, and helps stabilize blood pressure. A long-term deficiency can contribute to heart rhythm disorders or high blood pressure. Studies show that people with high magnesium levels have a lower risk of coronary heart disease. Magnesium is also particularly relevant in the prevention of arteriosclerosis (hardening of the arteries) and in supporting the management of existing cardiovascular diseases.

Bone health and teeth

Magnesium is an essential partner of calcium and vitamin D when it comes to bone health. It supports the incorporation of calcium into bone tissue, thus ensuring strong bones and healthy teeth. Especially in combination with vitamin K2, it helps ensure that calcium reaches where it's needed – and isn't deposited in the arteries. Therefore, anyone wanting to prevent osteoporosis should also pay attention to their magnesium levels.

Magnesium during pregnancy and breastfeeding

Magnesium requirements increase significantly during pregnancy, as both mother and developing child need optimal levels. A deficiency can lead to leg cramps, high blood pressure (preeclampsia), or premature labor. The need remains elevated during breastfeeding. Regular supplementation can help prevent complications and promote overall well-being.

Sport and recovery

Magnesium is a performance booster in sports. It promotes regeneration, reduces muscle soreness, supports electrolyte balance, and improves endurance. Especially in endurance sports, magnesium loss through sweat shouldn't be underestimated. Appropriate supplementation helps with faster recovery and injury prevention. Magnesium granules for drinking or gels for local application to relieve muscle tension are particularly popular.

Magnesium in foods

Many people are unaware that magnesium occurs naturally in numerous foods – especially in leafy green vegetables, nuts, seeds, legumes, and whole grains. Unfortunately, modern processed foods often contain only small amounts due to over-processing. Depleted agricultural soils also contribute to a significant decrease in the original magnesium content of fruits and vegetables.

When a magnesium deficiency is imminent

Typical risk groups for magnesium deficiency include older people, diabetics, pregnant women, athletes, and people with high stress levels. Certain medications, such as diuretics or proton pump inhibitors (e.g., for reflux), can also impair absorption or magnesium levels. A deficiency often goes undetected for a long time because the symptoms develop gradually.

How to recognize magnesium deficiency

Diagnosis isn't always straightforward: A standard blood test only measures the magnesium level in the serum – which represents only 1% of the body's total magnesium stores. Whole blood analyses or assessments based on typical symptoms such as muscle cramps, sleep disturbances, fatigue, or nervousness are more informative. Anyone unsure should seek medical advice or research reliable self-tests.

Dietary supplements compared

Magnesium supplements are available in numerous forms. Bioavailability – that is, how well the body can absorb the compound – is crucial. Organic compounds such as magnesium citrate, glycinate, or malate are particularly recommended. These are well-tolerated and effectively absorbed. The form of administration also plays a role: tablets, powder, liquid, oil, or gel – depending on individual needs and preferences.

Risks of overdose

Although magnesium is relatively safe, excessive intake – especially in the form of high-dose supplements – can lead to side effects such as diarrhea, nausea, or, in rare cases, even cardiac arrhythmias. Particular caution is advised for those with impaired kidney function. Therefore, intake should ideally be coordinated with or supervised by a doctor.

Conclusion: Consider magnesium holistically

Magnesium is far more than just a "muscle mineral." It influences virtually all important bodily functions – from energy and sleep to heart health and mental well-being. Consciously ensuring an adequate intake of this essential nutrient can noticeably improve quality of life and prevent many health problems. It's worthwhile integrating magnesium into your daily health routine – both preventively and holistically.

Bonus: Discover magnesium at MYHERO

MYHERO offers a high-quality selection of magnesium products – including the popular Magnesium Balance with seven bioavailable forms, classic magnesium citrate, as well as magnesium oil and gel for external use. Ideal for anyone who wants to take targeted steps for their health – individually dosable and optimally tailored to different needs.

How can you tell if you have too little magnesium?

A magnesium deficiency can manifest itself through symptoms such as muscle cramps, tremors, fatigue, headaches, sleep problems, nervousness, or heart rhythm disturbances. Digestive problems or difficulty concentrating can also be signs. Nighttime leg cramps are particularly typical.

Why should you take magnesium in the evening?

Magnesium has a relaxing effect on muscles and the nervous system. Therefore, taking it in the evening can help you fall asleep more easily and stay asleep throughout the night. Magnesium has proven particularly effective in the evening for inner restlessness or sleep disorders – ideally 1-2 hours before bedtime.

When should you not take magnesium?

People with severe kidney disease should only take magnesium after consulting a doctor, as excretion may be impaired. Side effects such as diarrhea can also occur at very high doses. Interactions may occur when taking certain medications (e.g., antibiotics) concurrently – medical advice is recommended in these cases as well.

Where is the highest concentration of magnesium?

Foods particularly rich in magnesium include pumpkin seeds (approx. 535 mg/100g), sunflower seeds, almonds, cashews, amaranth, rolled oats, spinach, black beans, and dark chocolate. Mineral water with a high magnesium content can also contribute to magnesium intake.

Conclusion: Magnesium – the underestimated all-rounder

Whether through diet or targeted supplementation, magnesium belongs in every holistic health approach. It not only supports physical performance and mental strength, but also acts preventively against numerous ailments.

If you're often tired, sleep poorly, or suffer from muscle tension, it's worth checking your magnesium levels. Invest in your health – daily, consciously, and for the long term.

Stay informed and discover more about our products .

Photo by Karl Fredrich on Unsplash