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

Besides back pain, being deficient in the vitamin may also lead to other symptoms such as tiredness, increased susceptibility to illness, feelings of anxiety and delayed healing of wounds ...

Vitamin C supports our immune systems, helps our bodies heal wounds, protects our joints and contributes to collagen ...

Regular blood tests can also help monitor vitamin B9 levels and ensure that any deficiencies are promptly addressed through ...