Vitamin D is a nutrient critical to human health. Vitamin D levels are influenced by diet, exposure to sunlight (ultraviolet radiation) and some disease processes. Testing for vitamin D requires a blood draw and laboratory assessment of levels. Vitamin D status may be related to numerous risk factors, conditions, and diseases. Testing might be performed for a variety of concerns including vitamin D insufficiency, risk of poor bone health, presence of conditions resulting in malabsorption or altered metabolism, and suspected toxicity.
There are questions about the accuracy and usefulness of tests for Vitamin D levels, especially in healthy subjects. Assessing vitamin D levels may be useful to influence diagnostic or treatment decisions in some circumstances, though the usefulness of testing is uncertain in others.
- Draft Key Questions Published: April 27, 2012
- Public Comment Period: April 27 - May 14, 2012
- Draft Report Published: August 31, 2012
- Public Comment Period: August 31 - October 1, 2012
- Final Report Published: October 8, 2012
- HTCC Public Meeting: November 16, 2012
Primary Criteria Ranking
Safety = Low
Efficacy = High
Cost = High