Research shows that aerobic exercise can help boost your thyroid hormone levels.

Thyroid hormones are very important. They help control growth, cell repair, and metabolism — the process by which your body converts what you eat into energy.
Additionally, eating more protein may help boost your metabolism.
People with hypothyroidism usually have a slower metabolism.
Hypothyroidism is a condition in which the thyroid gland does not make enough thyroid hormone. As the thyroid hormone is important for growth, repair, and metabolism, people with hypothyroidism may often feel cold and fatigued and may gain weight easily.
When the thyroid gland receives a signal called thyroid-stimulating hormone (TSH), it releases thyroid hormones into the bloodstream. This signal is sent from the pituitary gland, a small gland found at the base of your brain, when thyroid hormone levels are low (4Trusted Source).

Occasionally, the thyroid gland doesn’t release thyroid hormones, even when there is plenty of TSH. This is called primary hypothyroidism and the most common type of hypothyroidism.

Approximately 90% of primary hypothyroidism is caused by Hashimoto’s thyroiditis, an autoimmune disease in which your immune system mistakenly attacks your thyroid gland
Other causes of primary hypothyroidism are iodine deficiency, a genetic disorder, taking certain medications, and surgery that removes part of the thyroid (6Trusted Source).
Iodine is an essential mineral that’s needed to make thyroid hormones.

If you have an iodine deficiency, consider adding iodized table salt to your meals or eating more iodine-rich foods like seaweed, fish, dairy, and eggs.

Iodine supplements are unnecessary, as you can get plenty of iodine from your diet. Some studies have also shown that getting too much of this mineral may damage the thyroid gland
Selenium helps “activate” thyroid hormones so they can be used by the body.

This essential mineral also has antioxidant benefits, which means it may protect the thyroid gland from damage by molecules called free radicals.

Adding selenium-rich foods to your diet is a great way to boost your selenium levels. This includes Brazil nuts, tuna, sardines, eggs, and legumes.

Avoid taking a selenium supplement unless advised by your healthcare provider. Supplements provide large doses, and selenium may be toxic in large amounts