Katherine Anderson, ND FABNO National Director Naturopathic ...

Slower metabolism slow burning of food not enough energy available or produced from food Major cause is radiation to the neck Hodgkin's disease, the risk of hypothyroidism at 20 years from the time of diagnosis was 50% (16) . Concurrent administration of chemotherapy may increase the risk substantially. Immunologic and targeted therapies for cancer may also induce hypothyroidism. Examples: Sutent for RCC, immune therapy (interleukin 2 and interferon). The diagnosis of hypothyroidism is confirmed by measurement of serum TSH and free thyroxine (T4).