Service Providers for Vitamin D3/D2
The Vitamin D3/D2 test measures the levels of both Vitamin D2 (ergocalciferol) and Vitamin D3 (cholecalciferol) in the blood. Vitamin D2 is typically obtained from plant sources and fortified foods, while Vitamin D3 is produced in the skin through sunlight exposure and is also found in animal-based foods. This test helps assess vitamin D deficiency or excess, which can affect bone health and immune function. A blood sample is drawn for the test. No special preparation is usually required. Risks include mild discomfort during the blood draw. Low levels may indicate deficiency, while high levels could indicate excess supplementation.