Vitamin D supplements are generally in your system after 4 to 12 weeks. Learn more about the importance of consistent ...

U.S. diets should include more of vitamins D and E, fiber, calcium and magnesium — all are essential nutrients that could offer health benefits.

A specialized vitamin D3 nanoemulsion significantly improved core autism symptoms in children. New research explores how a ...

Article Published: 07 July 1945 Vitamin a Deficiency and the Requirements of Human Adults Nature 156, 11–12 (1945) Cite this article ...