Normal value of 25-hydroxyvitamin D2

This substance is the primary form of vitamin in the human body. Its normal value varies significantly depending on the standard laboratory testing method used. Typically, a level of no less than 30 is considered basically normal. If the level is below 12.5, it indicates a severe deficiency of vitamin D. Assessment of vitamin D toxicity is recommended for patients with suspected toxicity. Evaluating vitamin D insufficiency or deficiency helps identify individuals who may benefit from vitamin D supplementation.