Researchers have found new evidence that vitamin D may be metabolized differently in people with an elevated body mass index (BMI). The study is a new analysis of data from the VITAL trial, a large ...

Vitamin D is an essential macronutrient that is involved in several biological processes. Vitamin D production takes place endogenously as vitamin D3 (cholecalciferol) or is obtained from the diet or ...

Medically reviewed by Erika Prouty, PharmD If you take vitamin D supplements to treat any deficiencies, it's essential to ...

An overview of vitamin D metabolism, deficiency and the key preventive and management strategies undertaken in primary care.

Doctors say the ideal form of vitamin D comes from the skin when it absorbs sunlight. A dietitian expert weighs-in on the ...

Learn about the benefits of taking vitamin D and vitamin K2 together. Discover how they benefit bone and heart health.

Using significantly higher doses of vitamin D than recommended for five years did not affect the incidence of type 2 diabetes in elderly men and women, according to a new study from the University of ...

High-dose vitamins and supplements, once seen as harmless, now show potential for serious harm. Excessive intake of Vitamin A, D, E, Niacin, and gree ...