A recent study published by the journal Experimental and Clinical Endocrinology & Diabetes found that vitamin D supplementation reduced thyroid autoimmunity among women receiving levothyroxine treatment for Hashimoto’s thyroiditis.
Hashimoto’s thyroiditis (HT) is an autoimmune condition in which the immune system attacks the thyroid gland, gradually destroying it over time. Although there may be no symptoms initially, as the thyroid gland becomes damaged, it may result in the formation of a goiter. Individuals often develop hypothyroidism, which typically causes unintentional weight gain, fatigue, constipation, depression and chronic pain.
HT is one of the most common autoimmune conditions in the US. About 1 in 1,000 individuals are diagnosed with this condition annually. The etiology of HT is not fully understood; however, it is believed to be due to a combination of genetic predisposition and environmental factors.