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

Vitamin D3 seemed more effective than D2 at raising this important blood test. Furthermore, preliminary work showed that enzymes in the liver and the final vitamin D receptors (VDR) in important ...

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

Vitamin D deficiency is more common than we think. A Vitamin D Test measures the level of this essential vitamin in your blood, which is needed for bone health and immune function. Regular ...

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

What Is a Phosphate Blood Test? A phosphate test measures the amount of phosphate in your blood. Phosphate is what you get when you combine the mineral phosphorus with oxygen. When you eat certain ...

Vitamin D3 is more effective at raising and maintaining the vitamin D blood test (again, D2 binds less tightly to the vitamin D receptors in the body; therefore, D2 does not circulate as long in ...