Natural Cleansers - CommonHealth of Virginia

The best indicator of vitamin D status is the concentration of serum 25-hydroxyvitamin D. Although there is no universally accepted definition of vitamin D deficiency, an acceptable serum 25-hydroxyvitamin D level appears to be 50 nmol/L, with moderate–severe deficiency defined as less than 25 nmol/L (Ministry of Health and Cancer Society of ... ................
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