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

There has been no consensus on the optimal level of vitamin D intake to reduce PTH, and this is why many laboratories report the normal range of vitamin D to be so wide (20 to 40 ng/ml ...

Some health insurances cover vitamin D testing and some do not, and prices vary from $10 to $50, so local laboratory costs should be checked before telling the patient that a vitamin D test is needed.

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 ...

Vitamins play crucial roles in maintaining optimal health and functionality within the body. These micronutrients serve as essential cofactors for enzymatic reactions, aiding in metabolism, energy ...