Scientists from Taiwan have discovered a link between low blood magnesium levels and an increased risk of developing dementia in individuals over 50 years old. The results of a large-scale study showed that a deficiency of this important mineral can negatively affect not only brain function but also the condition of the cardiovascular system.
The study, published in the scientific journal Frontiers in Nutrition, is based on the analysis of data from over 325,000 individuals from the international TriNetX database.
Magnesium and Brain Health
Specialists found that individuals whose blood magnesium levels were below 1.7 mg/dL at least twice within a year had a 33% higher risk of developing dementia compared to those with normal levels.
The association was particularly pronounced with vascular dementia — in this group, the risk increased by 63%.
Additionally, magnesium deficiency was linked to a higher likelihood of stroke and increased mortality from various causes.
The authors of the study note that the results remained significant even after adjusting for the age and sex of the participants.
Why Magnesium is So Important
Magnesium plays a crucial role in the functioning of the nervous system, heart, blood vessels, and metabolic processes.
A deficiency can impair blood supply to the brain and disrupt signal transmission between nerve cells. These processes are considered to be among the factors contributing to cognitive impairments and memory decline.
According to scientists, monitoring magnesium levels may help identify individuals at increased risk of dementia earlier and develop more effective preventive measures.
More Does Not Mean Better
At the same time, researchers warn that excess magnesium is also not beneficial.
During the study, specialists noticed that excessively high levels of the mineral in the blood could also be associated with adverse health outcomes.
Neurologist Tatyana Stetskaya emphasizes that magnesium supplements should not be taken without a specialist's prescription. Self-medication can lead to side effects and, in some cases, harm the body.
Experts remind that maintaining normal magnesium levels is important for brain and vascular health; however, any supplements should only be taken after consulting a doctor and with confirmed deficiency. A balanced diet and regular medical check-ups remain the foundation for preventing cognitive impairments.
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