When it comes to vitamin d and the thyroid, context is everything. Rates of thyroid disorders are astoundingly high and are rising every year. In that context, we know that something in our world isn’t going well. Our genes aren’t changing that fast. However, our environment and lifestyles are. One of the biggest known factors right now is vitamin D deficiency as far as a known lifestyle risk factor for MANY diseases, including thyroid diseases. This article discusses the impact of vitamin D on thyroid function and if it can help with thyroid disorders.