The perils of vitamin D deficiency are well documented, and symptoms such as fatigue, flu, dizziness, hair loss and even weight gain have been either conclusively proven or strongly implicated.

Dr. Theodore C. Friedman, M.D., Ph.D. is not alone in pointing out the strong association between hypothyroidism and vitamin D deficiency. In a paper on the subject, Dr. Friedman explains that “both vitamin D and the thyroid hormone bind to similar receptors called steroid hormone receptors.

"A different gene in the vitamin D receptor was shown to predispose people to autoimmune thyroid disease including Graves’ disease and Hashimoto’s thyroiditis.”

In this article, we’ll examine the links between vitamin D deficiency and thyroid disease, and suggest means of upping your vitamin D to protect your health.