Vitamin D Total

Vitamin D plays an important role in calcium absorption and its deficiency can lead to abnormal bone development, bone weakness, and pain. It also helps maintain proper levels of calcium, phosphate, and parathyroid hormone. UV rays from the sun cause the skin to generate vitamin D in the body. Fish, eggs, and dairy products with added vitamin C are additional excellent vitamin sources. Vitamin D can be deficient due to sun exposure limitations or diet. To assess vitamin D levels, the 25-hydroxy vitamin D test measures the amount of calcidiol (the main form of stored vitamin D) in your blood. This test, also known as the 25-OH vitamin D test, helps diagnose deficiency or excess vitamin D, potentially linked to bone problems like rickets or osteoporosis.