Medically reviewed by Soma Mandal, MD A vitamin D test is a blood test that measures the level of vitamin D (calciferol) in ...

New research finds that taking a daily vitamin D supplement may help lower blood pressure, especially for older adults with ...

The Vitamin D Blood Test (25-OH Vitamin D): Who, How, When, and Where Clinically speaking, things began to change in the 1970s when the blood test for vitamin D (known as the "25-OH vitamin D ...

Women who take vitamin D supplements during a pregnancy may be giving their kids the legacy of stronger bones, new research ...

Vitamin D is produced naturally by the body when it's exposed to sunlight, but during the UK winter months, many people are ...

Can vitamin D supplements prevent heart disease? A new study finds no impact on cardiac health in older adults, even with ...

Vitamin patches are making their way into the main stream, but there's little evidence that they work. Are they worth a try, ...

Vitamin D not only supports your immune system but can help you prevent bone disease, regulate mood and more. Here's how you ...

10 mcg = 400 IU. 15 mcg = 600 IU. 20 mcg = 800 IU. It is much easier to access the patient’s need after a vitamin D blood test. Few individuals would allow their clinician to simply guess an ...