Medically reviewed by Aviv Joshua, MS Vitamin D levels can be measured with a blood test. This test can indicate whether you ...

Learn about normal vitamin D levels by age. This article also looks at sources of vitamin D, symptoms of vitamin D toxicity, and more.

It noted as much as 17 % of dementia cases could be prevented in some populations by increasing everyone to "normal" levels of vitamin D, which they described as 50 nmol/L – the vitamin D ...

Vitamin D and cholesterol share a complex relationship. While vitamin D may help lower cholesterol levels, some studies suggest vitamin D can actually raise them.

Association between serum vitamin D levels and cardiorespiratory fitness in the adult population of the USA. European Journal of Preventive Cardiology , 2018; 204748731880727 DOI: 10.1177 ...

Vitamin-D levels in pregnancy do not affect bone health in offspring, a new study finds. UK advice to supplement all should be reexamined, but dark-skinned women likely still need vitamin D.

Credit: Shutterstock. A retrospective cross-sectional study among young, healthy military workers examined associations between 25(OH)D levels and post-vaccination antibody titers and healthcare ...

Forty-two study participants with vitamin D insufficiency whose levels later went back to normal had an average drop in blood pressure of 4.6 millimeters mercury.

For adults, a typical level of vitamin D in the blood is 20 nanograms per milliliter (ng/ml) or above. Levels of 12 ng/ml are too low and levels of 50 ng/ml are too high. High or low levels may ...