Magnesium is one of those minerals we constantly hear about when talking about energy, muscles, rest or general well-being. However, there are also many exaggerated claims and some confusion about which type to choose or when using a supplement may actually make sense.
Understanding the benefits of magnesium starts with one essential point: magnesium is not a “miracle” ingredient, but an essential mineral involved in many normal processes in the body.
In addition to obtaining it through food, magnesium supplements are now available in different formats and chemical forms, including citrate, oxide and magnesium glycinate. But are they all the same? Which one should we choose? And when might supplementation be useful?
What is magnesium and why does the body need it?
Magnesium is an essential mineral naturally present in the body and in many foods.
It is involved in a wide range of biochemical reactions related to important functions such as energy production, normal muscle and nerve function, protein synthesis and the maintenance of normal bones.
This helps explain why magnesium is associated with so many different aspects of well-being.
However, talking about the benefits of magnesium does not mean that taking extra amounts will automatically provide more energy, stronger muscles or perfect sleep.
The main goal is to ensure that the body has an adequate amount available to carry out the normal functions in which this mineral is involved.
Main benefits and functions of magnesium
Contributes to normal energy-yielding metabolism
One of magnesium’s recognised functions is its role in energy metabolism.
The body constantly needs energy for everything from basic physiological functions to everyday activities and physical exercise.
Magnesium contributes to normal energy-yielding metabolism and also helps reduce tiredness and fatigue.
This does not mean that taking a magnesium supplement works like a stimulant or produces an immediate burst of energy.
Its role is part of the body’s normal physiological processes related to energy use.
Contributes to normal muscle function
This function is particularly relevant for physically active people.
Magnesium contributes to normal muscle function and also supports normal electrolyte balance.
This is one reason why magnesium is frequently discussed in relation to sport, physical activity and recovery.
However, it should always be kept in context: no mineral can replace good training, an appropriate diet, hydration and adequate rest.
Supports normal nervous system function
Magnesium also contributes to the normal functioning of the nervous system and to normal psychological function.
This partly explains why it is often found in products associated with everyday well-being.
However, these normal physiological functions should not be turned into claims that a magnesium supplement can, by itself, treat anxiety, severe stress or other health conditions.
Contributes to the maintenance of normal bones
When we think about bone health, calcium and vitamin D often come to mind first, but magnesium also plays a role.
It contributes to the maintenance of normal bones and is also involved in normal protein synthesis and the process of cell division.
This is another example of how the same micronutrient can take part in many different physiological processes.
Where do we get magnesium naturally?
Before talking about supplements, it is important to remember that a significant part of our magnesium requirements should come from food.
Magnesium can be found in foods such as:
- nuts and seeds;
- legumes;
- green leafy vegetables;
- whole grains;
- certain soy products;
- some dairy products and other foods.
A varied diet helps provide not only magnesium but also many other nutrients the body needs.
For this reason, food supplements should always be understood as a complement to, rather than a replacement for, a balanced diet.
When may magnesium supplementation be useful?
Not everyone needs to take a magnesium supplement.
Whether supplementation is appropriate depends on diet, individual requirements, personal circumstances and, in some cases, advice from a healthcare professional.
It may be worth considering supplementation when the diet does not provide enough magnesium, when there is a specific nutritional need or when we want to complement our diet in a controlled way.
Certain medications and medical conditions can also affect magnesium status or make it particularly important to pay attention to intake.
For this reason, if you have a medical condition, regularly take medication or are concerned about a possible deficiency, it is advisable to speak with a healthcare professional before starting supplementation.
Types of magnesium: are they all the same?
When looking for a supplement, it is common to come across terms such as magnesium citrate, magnesium oxide, magnesium glycinate and other forms.
The first thing to understand is that magnesium needs to be bound to another compound so that it can be incorporated into a formulation.
This combination creates different magnesium salts or forms.
Magnesium citrate
Magnesium citrate is a widely used form in food supplements.
Magnesium forms that dissolve well generally tend to be absorbed more completely than forms with lower solubility.
However, absorption should not be the only factor considered when choosing a supplement.
Magnesium oxide
Magnesium oxide is another widely used form.
It contains a relatively high proportion of magnesium compared with the total weight of the compound, but its digestive behaviour and absorption can differ from other forms.
This is why two supplements should not be compared simply by looking at the number of milligrams displayed prominently on the front of the packaging.
Magnesium glycinate
Magnesium glycinate is a form in which magnesium is associated with glycine.
It has become a popular option in supplementation and can be found in both traditional formats and more convenient alternatives.
However, we should not assume that there is one universally “best” form for everyone.
The right choice depends on the formulation, the amount of magnesium provided, individual tolerance and personal preferences.
Magnesium glycinate: why has it become so popular?
Interest in magnesium glycinate has grown considerably in recent years.
One reason is that it provides another way of formulating magnesium by binding the mineral to glycine, offering an alternative to other commonly used magnesium salts.
There are also more and more convenient formats designed to make supplementation easier to incorporate into a daily routine.
This brings us back to an idea we discussed when looking at gummy supplements: the format does not automatically make an ingredient better, but it can make it easier and more convenient to use.
Magnesium and exercise: what is the connection?
Magnesium is often associated with sport because it is involved in functions closely related to physical activity.
It contributes to normal muscle function, normal energy-yielding metabolism and normal electrolyte balance.
This makes maintaining an adequate magnesium intake particularly relevant when discussing nutrition for an active lifestyle.
However, taking more magnesium than necessary will not replace proper training planning or turn an ineffective workout into an effective one.
Supplementation should always be considered within a much broader context that includes nutrition, hydration, training and recovery.
What is the relationship between magnesium and rest?
This is probably one of the areas in which we see the greatest number of marketing claims about magnesium.
The mineral contributes to normal nervous system function and normal psychological function, but this does not mean that we can generally claim that any magnesium supplement “cures insomnia” or guarantees deep sleep.
Rest depends on many factors, including schedules, screen exposure, stress, physical activity, diet, stimulant intake, environment and everyday habits.
For this reason, if we choose to include magnesium in an evening routine because that timing helps us stay consistent, it should be viewed as part of a broader set of healthy habits rather than as a standalone solution to sleep problems.
What should we check when choosing a magnesium supplement?
The actual amount of magnesium
This is one of the most important points.
When a label states a certain amount of “magnesium glycinate”, “magnesium citrate” or another magnesium salt, that amount does not necessarily equal the same quantity of elemental magnesium.
It is therefore important to carefully check the nutritional information and determine how much magnesium the recommended daily serving actually provides.
The recommended serving
We should also check how many capsules, tablets or gummies make up one serving.
We should not increase the amount on our own simply because we assume that a higher dose will necessarily provide greater benefits.
Excessive magnesium intake from supplements can cause gastrointestinal effects such as diarrhoea, nausea or abdominal cramping.
The full formulation
A supplement may contain other nutrients in addition to magnesium.
For this reason, it is worth checking the complete ingredient list and evaluating the formulation as a whole rather than choosing a product solely because of the name displayed on the front of the packaging.
What is the best time to take magnesium?
There is no single mandatory time that works for everyone.
In many cases, the most important thing is to choose a time that makes regular use easier and to follow the specific instructions provided with the product.
Some people prefer taking it with a meal, while others include it in their afternoon or evening routine.
If a product provides specific directions regarding dosage and use, these should always be followed.
In addition, some magnesium supplements may interfere with the absorption of certain medicines, so anyone taking regular medication should check whether doses need to be separated.
Green Folhas Magnesium Glycinate: convenience in gummy format
At Green Folhas, we have also incorporated magnesium into a format designed to make daily supplementation easier.
Our Magnesium Glycinate combines this form of magnesium with vitamin B6 and vitamin D3 and is presented in gummy format.
The main advantage of the format is practical: there is no need to swallow large tablets or prepare mixtures, making it easy to include in a daily routine.
As with any supplement, the important thing is to respect the recommended serving, check the formulation and use it as part of a healthy diet and lifestyle.
Magnesium: important, without turning it into a miracle product
The benefits of magnesium are linked to its role in many normal functions of the body, including energy metabolism, muscle and nervous system function, electrolyte balance, protein synthesis and the maintenance of normal bones.
That already makes magnesium an important mineral without the need to give it exaggerated properties.
Food should always be our starting point.
When we decide to supplement, it is worth choosing an appropriate formulation, checking how much magnesium it actually provides and selecting a format that can be easily incorporated into our routine.
And, as is so often the case when talking about nutrition and well-being, the best strategy is rarely to look for a miracle solution, but rather to maintain healthy habits consistently.