The 25-hydroxy Vitamin D test measures the Vitamin D levels in the body. Vitamin D is an essential vitamin for humans. The human body requires Vitamin D for regulating body minerals. Vitamin D helps to maintain Calcium and Phosphorus balance in the body. Vitamin D, also known as calciferol, is a fat-soluble vitamin. Vitamin D functions in the capacity of a hormone.
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Orthopaedics Vitamins
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The Vitamin D3 test (25-hydroxyvitamin D test) measures the level of vitamin D in your blood. It's used to determine if you have too little, too much, or sufficient vitamin D. This test helps diagnose vitamin D deficiency or monitor treatment for bone disorders like rickets or osteoporosis.
No special preparation is needed for a Vitamin D3 blood test. You can eat and drink normally before the test unless instructed otherwise by your healthcare provider.
Deficient: Less than 20 ng/mL
Insufficient: 20–30 ng/mL
Sufficient: 30–100 ng/mL
Potentially toxic: Over 100 ng/mL
Low levels may indicate a deficiency due to lack of sunlight, poor diet, or absorption issues, while high levels may result from excessive supplementation.
