General Information About the Test
Test Process and Preparation
Although it varies according to laboratory reference ranges, the general medical consensus is that a 25-OH Vitamin D level in the blood above 30 ng/mL is considered healthy and sufficient. Levels below 20 ng/mL are considered a deficiency.
It causes 'rickets', which impairs bone development in children, and 'osteomalacia' (softening of the bones) and 'osteoporosis' (brittle bones) in adults. It is also directly associated with depression and fatigue.
Since the Vitamin D test is not directly or instantly affected by food, strict fasting is not required, but when requested along with routine health screenings, giving blood on an empty stomach in the morning is preferred in practice.
The information on this page is for informational purposes only. The results of medical tests must be evaluated by specialist physicians.
