Lower levels of thyroid hormone means lower energy, and since less calories are burned for energy, more weight is stored. (everlywell.com)
The goal of therapy is to restore normal thyroid function and minimize side effects of treatment without creating lower than normal levels of thyroid hormones (referred to as hypothyroidism). (catfriendly.com)
Thus, selenium - deficient individuals showing clinical signs of hypothyroidism could be overlooked on the basis that blood levels of thyroid hormones appear normal. (kerryblues.org)