Magnesium for athletes – why is it worth ensuring an adequate intake?

Physical activity engages the muscles, the nervous system and numerous metabolic processes, which is why a well-composed diet for someone who trains should provide all the essential nutrients. One of them is magnesium, which is involved, among other things, in the normal functioning of the muscles and nervous system and in the processes related to energy production. For this reason, magnesium for athletes is a frequent topic in discussions about nutrition and recovery. This does not mean, however, that every active person automatically needs supplementation. The first thing worth looking at is your daily menu.

A well-balanced diet can provide significant amounts of this element, especially if it regularly includes wholegrain products, nuts, pips, legumes and green vegetables. However, the total amount of food eaten, the intensity of training and individual needs also matter. That is why, instead of taking magnesium preventively in a random dose, it is better to assess your diet first. Only then can you consider whether additional intake is really needed.

Magnesium for athletes – what role does it play during physical activity?

Magnesium takes part in hundreds of enzymatic reactions taking place in the body. It is needed, among other things, for the normal functioning of the muscles and nervous system, protein synthesis and the processes related to energy production. That is exactly why an adequate amount of this nutrient matters for everyone, not only for people who train. In the case of athletes, however, the quality of the whole diet becomes particularly important, because as activity increases, so does the requirement for energy and for some nutrients.

At the same time, you should not assume that tiredness after training or a muscle cramp automatically means a magnesium deficiency. Similar complaints can have many causes, such as a heavy training load, muscle fatigue, insufficient recovery or disturbances in water and electrolyte balance. That is why magnesium for physically active people is best treated as one element of a proper diet, rather than a universal solution to all the problems that appear during training.

How much magnesium does the body need per day?

Wondering how much magnesium per day should be in your diet? According to the standards used for adults, the values depend mainly on sex and age. For adult women the daily magnesium requirement is usually around 310-320 mg, and for men around 400-420 mg. These values refer to the total intake of magnesium, mainly from food. A separate maximum amount is set for magnesium from supplements and medicines – for adults it is 350 mg per day (according to the National Institutes of Health). This limit does not include magnesium naturally present in foods.

That is why the daily dose of magnesium in the product you take should not be calculated automatically on the basis of the total nutritional standard. After all, we cover part of our requirement every day with our meals.

What your actual daily magnesium requirement is depends on, among other things, age, sex, diet and level of physical activity. A person who trains recreationally a few times a week may have different needs from someone who exercises intensively almost every day. What matters in particular is how much magnesium you already get from food, which is why, before reaching for magnesium for athletes, it is worth taking a look at your diet first.

Does physical activity affect the requirement for magnesium?

Intensive training can change the body's nutritional needs, but this does not mean that every athlete should take a larger amount of magnesium in the form of a supplement. As activity increases, it is usually above all the requirement for energy that rises, and a larger amount of well-chosen food can at the same time provide more vitamins and minerals.

That is why the requirement for magnesium is worth considering in the context of the whole diet and the training load. A person who trains recreationally a few times a week may have completely different nutritional needs from a competitor who does intensive training every day. If it is difficult to obtain an adequate amount of this element from your daily menu, magnesium supplements can complement your diet. What matters most, however, is an individual assessment of your diet and the real needs of your body, rather than adopting one value as binding for all active people.

How to get magnesium from your everyday diet?

Natural dietary sources of magnesium remain the best starting point. This element is found, among other things, in pumpkin seeds, nuts, seeds, wholegrain products, legumes, cocoa and green leafy vegetables. As a result, increasing your intake does not have to mean radically overhauling your menu. It is often enough to include these products regularly in your meals and snacks.

In practice, magnesium in an athlete's diet can easily be increased through simple changes:

• adding pips or nuts to your porridge,
• choosing wholegrain bread and pasta,
• reaching more often for beans, lentils and chickpeas,
• using cocoa as an addition to meals,
• varying your diet with green vegetables.

This approach also provides fibre, plant protein and many other nutrients along the way. Instead of focusing solely on magnesium, it is therefore worth building a varied menu that also includes other vitamins and minerals. It is best to get them from natural foods and to treat supplementation as a complement to your diet when it is difficult to cover your requirements with your menu alone.

When and how to take magnesium?

The question of when to take magnesium comes up particularly often among people who train in the evening or associate this element with recovery. In reality, there is no single time that is right for everyone. It is far more important to use the product regularly in line with the recommendations of the manufacturer or a specialist and to tailor it to your individual needs.

The answer to the question of how to take magnesium also depends on the specific product, its dose and the amount of this nutrient provided by your diet. It is worth remembering that the tolerable upper intake level of 350 mg per day indicated for adults by the US National Institutes of Health applies to magnesium from supplements and medicines, not to magnesium naturally present in food. Excessive amounts from supplements may cause, among other things, diarrhoea, nausea and abdominal discomfort. That is why it is not a good idea to increase the dose on your own just because you train intensively.

Magnesium deficiency in active people – when is it worth paying attention to your intake?

The risk of insufficient intake may increase when your diet is monotonous, very restrictive or provides too little energy in relation to your activity. Some diseases and medicines that affect the absorption or excretion of magnesium may also play a role. However, a single symptom of magnesium deficiency does not allow you to conclude on your own that it is precisely this nutrient that your body is lacking. Cramps, weakness or feeling unwell can have various causes.

If your diet really does provide too little of this element or there are other indications of an increased risk of deficiency, magnesium deficiency supplements can complement your daily menu. They should not, however, replace an assessment of your diet or a consultation if complaints persist. It is also worth remembering that measuring magnesium levels in the blood has its limitations and does not always fully reflect the body's total stores of this element.

If you train intensively or suspect that your diet does not provide enough magnesium, check how often it includes foods that are a good source of it. Well-chosen magnesium for athletes can complement your diet when there is a real need for it, but a well-composed menu should still remain the foundation. If in doubt, it is worth consulting a specialist on whether supplementation is justified in your case.