Vitamin D Test

The Vitamin D Test is performed to measure the level of Vitamin D in the bloodstream, primarily the 25-Hydroxy Vitamin D form, which is the most reliable marker of Vitamin D status. This vitamin is essential for maintaining strong bones, supporting mineral absorption, regulating immune function and preventing abnormal skeletal development. Vitamin D exists in two main forms in the blood — 25(OH)D and 1,25(OH)₂D, of which 25-Hydroxy Vitamin D is the major circulating form used to assess deficiency and supplementation needs.

Low Vitamin D levels may lead to bone softening disorders such as rickets in children and osteomalacia in adults. Lack of adequate sunlight exposure, malnutrition or digestive issues can reduce natural Vitamin D production. Early detection through this test helps prevent bone deformity, weak muscles, poor posture and impaired growth. Regular monitoring is recommended for children, elderly individuals, people with brittle bones, individuals with skeletal pain or those with limited sun exposure.

Measures Vitamin D levels in the blood to evaluate bone strength, calcium absorption, overall skeletal health and deficiency risk.