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Magnesium Analysis: The Key to Understanding the Body's Internal Stability
Magnesium is one of the most important trace elements, present in almost every cell of our body. Its level determines how efficiently the muscles, heart, nervous system work, and how well other minerals, in particular calcium and potassium, are absorbed. That is why magnesium analysis often becomes an important step in the diagnosis of chronic fatigue, heart disorders, seizures, or emotional instability.
This test is not just a number on a form. It is an indicator of metabolic balance, based on which the doctor can draw conclusions about hidden problems or check the effectiveness of treatment.
What does a magnesium test examine?
The assay determines the concentration of magnesium in a biological sample — usually in blood serum, less often in urine or erythrocytes. The serum level is most often used, although it reflects only 1% of total magnesium in the body.
Value within 0.65–1.05 mmol/L are considered reference. But these limits are not always sufficiently informative: it is possible to have deficiency symptoms even at “normal” levels, especially if magnesium is rapidly excreted or poorly absorbed.
Who may be recommended for the study?
to people with heart disorders (arrhythmia, hypertension, tachycardia)
at frequent cramps, spasms, muscle pain
in patients with gastrointestinal disorders (irritable bowel syndrome, diarrhea, malabsorption)
at suspected anxiety disorders, panic attacks
during pregnancy, especially with increased uterine tone
in case insulin resistance, diabetes, metabolic syndrome
in patients with osteoporosis or frequent fractures
with long-term use diuretics, laxatives, anticonvulsants
What may indicate a magnesium deficiency?
| Symptom | Possible cause of deficiency |
|---|---|
| Leg cramps at night | Poor absorption of magnesium in the intestines |
| Arrhythmia, palpitations | Low magnesium levels in cardiomyocytes |
| Constant anxiety | Magnesium is involved in the work of neurotransmitters |
| Insomnia, shallow sleep | Magnesium affects melatonin synthesis |
| Frequent headaches, migraines | Magnesium deficiency causes vasospasm |
| Fatigue, apathy | Magnesium regulates cellular energy (ATP) |
Even one of these symptoms is a reason to schedule an examination, especially if there are additional risk factors.
What is the difficulty of diagnosis?
Magnesium is stored mostly in cells and bone tissue. Therefore, even with critical intracellular deficiency serum level may remain normal. This makes diagnosis difficult, and the doctor may prescribe:
magnesium analysis in erythrocytes
determination of daily urinary magnesium excretion
additional assessment: calcium, potassium, vitamin D, ferritin
Comprehensive interpretation of the results allows for a more accurate assessment of electrolyte balance.
The most common causes of magnesium loss
chronic stress and cortisol release
alcohol, caffeine, sweets in large quantities
intestinal problems (after infections, surgeries)
malnutrition or mono-diets
prolonged physical exertion without electrolyte compensation
kidney or adrenal dysfunction
In modern conditions, the risk of magnesium deficiency is significantly increasing, especially in city dwellers, office workers, students, and people who have suffered from Covid-19 or other chronic illnesses.
Natural sources of magnesium
| Product | Magnesium content (mg/100 g) |
|---|---|
| Pumpkin seeds | 530 |
| Sugar-free cocoa | 420 |
| Almond | 270 |
| Cashew | 260 |
| Buckwheat groats | 250 |
| Dark chocolate (>70%) | 228 |
| Spinach | 80 |
For better absorption, it is advisable to combine these products with vitamin B6 and avoid foods that "leach" magnesium - excess salt, caffeine, sugar.
A magnesium test is not a formality, but an informative tool that allows you to look deeper into the causes of fatigue, anxiety, or heart symptoms. It should be included in regular health checks, especially in conditions of constant stress and high workloads.
