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 ...

They’ll label the tube of blood and send it to a lab. Some medicines, vitamins, and supplements can impact your test results' precision. These can include diuretics (water pills), antacids ...

Vitamin D3 supplementation with calcium reduces blood pressure in elderly, overweight individuals, particularly those with ...

The A1C level test can give false or inaccurate results in some people. Doctors say your A1C level can be falsely elevated ...

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 ...