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

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.

Despite the importance of vitamin D for overall health, it is estimated that about one billion people worldwide have a deficiency, usually defined as having serum levels of 25-hydroxyvitamin D 3 ...