3 A further 61% of the pediatric population, or 50.8 million children, had vitamin D insufficiency (defined as 25-hydroxyvitamin D levels of 37–72 nmol/l). As children in Northern latitudes were ...

A vitamin D test, specifically the 25-hydroxyvitamin D blood test, is used to diagnose deficiency. Low levels may require supplementation with ergocalciferol or other forms of vitamin D.

Vitamin D3 supplementation was associated with antihypertensive effects without significant between-dose differences among overweight older adults.

Pediatric patients with severe obstructive sleep apnea and a vitamin D deficiency faced more severe sleep apnea vs. those ...