Mikhail Khvostov, Deputy Director of the Institute of Medicine and Medical Technologies at Novosibirsk State University and a Doctor of Biological Sciences, informed TASS that consuming more than 350 mg of magnesium per day can lead to a drop in blood pressure, drowsiness, and diarrhea, while a more severe overdose may result in cardiac arrest.
Magnesium has recently become one of the most sought-after types of dietary supplements among Russians. It plays a crucial role in the functioning of the nervous system and muscles. Its deficiency is often linked to sleep disturbances, increased fatigue, and depressive symptoms. Unlike antidepressants, this supplement is available without a prescription.
The expert outlined the symptoms of an overdose, with drowsiness and the loss of tendon reflexes being the first signs. This is followed by a sharp decline in blood pressure and respiratory depression, while levels exceeding 5 millimoles per liter can lead to cardiac arrest.
Khvostov clarifies that in some individuals, an overdose may cause diarrhea and a drop in blood pressure. The doctor emphasizes that the effects largely depend on kidney function: the more issues there are with the kidneys, the higher the risks and the severity of the symptoms.
What should be done? The specialist advises that if mild nausea or other symptoms occur, one should stop taking the supplement and drink water. Healthy kidneys will eliminate the excess of the substance within a day. However, if confusion or hypotension develops, it is necessary to urgently call an ambulance: the antidote is intravenous calcium gluconate. For individuals diagnosed with kidney failure, even a minor overdose requires medical supervision, and sometimes hemodialysis is needed.
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