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Vitamin D Sufficiency

Meaning

Vitamin D Sufficiency is the clinical state achieved when the circulating concentration of 25-hydroxyvitamin D (25(OH)D) in the blood serum meets or exceeds the threshold required to ensure optimal skeletal health and support its numerous non-endocrine biological functions. This threshold is generally defined in clinical practice as a serum level of 30 ng/mL or higher. Achieving and maintaining sufficiency is a primary therapeutic goal to prevent deficiency-related disorders and support systemic well-being.