Symptoms And Health Risks Of Vitamin D Deficiency
However, for many people, the symptoms are subtle. Yet, even without symptoms, too little vitamin D can pose health risks.
How The Test Is Performed
Many experts recommend a level between 20 and 40 ng/mL.
Some laboratories use different measurements or test different samples. Talk to your doctor about the meaning of your specific test results, and whether you may need vitamin D supplements. Many people are confused by the way these tests are reporte.
What Is A 25-Hydroxy Vitamin D Test?
Vitamin D is a nutrient that the body makes on exposure to sunlight. Vitamin D performs several important roles throughout the body. A 25-hydroxy vitamin D test measures vitamin D levels in the body.
Doctors use blood samples to carry out the test.