Vitamin D regulates the exchange of calcium and phosphorus in the body, which contributes to the maintenance of muscle tone, the immune system, myocardial function, the nervous system and hormonal status.
|Deficiency||≤ 20 ng/ml (≤ 50 nmol/l)|
|Insufficiency||21–30 ng/ml (51–75 nmol/l)|
|Acceptable||≥ 30 ng/ml (≥ 75 nmol/l)|
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