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

After discovering I was vitamin D deficient, I started religiously taking supplements, and I've never felt better.

In general, a good way to work out whether your vitamin D supplementation is having the desired effect is to take a vitamin D ...

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 ...

Vitamin D is produced naturally by the body when it's exposed to sunlight, but during the UK winter months, many people are deficient in it, as one writer found out a year ago ...

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 ...

“In some countries, at-home vitamin D deficiency tests are available, but they require a finger prick blood sample. To determine vitamin D sufficiency status in a more convenient and less ...

Scientists are looking for volunteers to take part in a trial to see if taking vitamin D can give the immune system ... for six months if a finger-prick test shows they are deficient in the ...

Read each question carefully and answer as truthfully as possible. After finishing the Vitamin Test, you will receive a detailed, personalized interpretation of your score that includes diagrams ...

As far as bone health goes, vitamin D plays an important role because it maintains calcium and phosphorus balance by promoting absorption. Vitamin D is usually added to milk to increase calcium ...