Vitamin D (25-OH) measures the level of 25-hydroxyvitamin D in your blood, the main form used to assess your vitamin D status. Vitamin D helps your body absorb calcium and is essential for bone healt…
Category: Vitamins & Minerals
Also known as: vitamin d, vit d, 25-oh vitamin d, 25-hydroxyvitamin d, calcidiol, 25ohd, d3, vitamin d3
Reference range: 30–100 ng/mL (Source: ABIM)
Standard unit: ng/mL
High values may indicate
High vitamin D levels may indicate excessive supplementation or vitamin D toxicity, which can cause hypercalcemia, nausea, kidney damage, and abnormal heart rhythm.
Low values may indicate
Low vitamin D levels may indicate inadequate sun exposure, poor dietary intake, malabsorption disorders, liver or kidney disease, or increased risk of osteoporosis and bone fractures.