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Vitamin D helps the body properly control calcium and phosphate levels in the body. When the body is deficient in vitamin D, it is unable to properly control calcium and phosphate levels. If the blood levels of these minerals become too low, the b...
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Vitamin D deficiency exists when the concentration of 25-hydroxy-vitamin D (25-OH-D) in the blood serum occurs at 12 nanograms/milliliter (ng/ml) or less. This is one-half to one-fourth the amount normally present.
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Vitamin D deficiency exists when the concentration of 25-hydroxy-vitamin D (25-OH-D) in the blood serum occurs at 12 ng/ml (nanograms/milliliter), or less. The normal concentration of 25-hydroxy-vitamin D in the blood serum is 25-50 ng/ml.
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