Vitamin D, 1,25 Dihydroxy (Thyroid Disease and Ricketts)  E-mail this product to a friend

This test measures the amount of Vitamin D in your blood, and compares it versus normal, expected values. It can help you identify if you are deficient in the type of Vitamin D implicated in Ricketts disease.

Levels of Vitamin D vary with exposure to sunlight, which is essential in Vitamin D production. Dietary intake of phosphorus is also critical in the production of Vitamin D. Also, when a person does not get enough calcium, levels of 1,25-dihydroxy D increase due to increased production of parathyroid hormone. Other factors that influence Vitamin D levels are the health of the thyroid, estrogens, calcitonin, human growth hormone, prolactin, insulin, and glucocorticoids. Vitamin D helps regulate calcium absorption from the diet, and is important for healthy bones.