The thyroid is a gland located at the base of the neck just below the larynx. Its main role is to regulate the body's metabolism by producing two hormones known as thyroxine and triiodothyronine. If the thyroid gland does not produce sufficient quantities of these hormones, it is said to be under active or "low" and your doctor may diagnose a condition called hypothyroidism. According to U.K. health care provider, Bupa, hypothyroidism is more common in women than men and is more common in older people. If your thyroid gland is under active, your doctor may prescribe medication to help regulate hormone production. Some nutritional supplements help boost a low thyroid but should not replace conventional treatment.
Tyrosine
The non-essential amino acid known as tyrosine helps the thyroid gland to produce thyroid hormones. According to the Unversity of Maryland Medical Center website, taking 500 mg of tyrosine two or three times daily may boost a low thyroid. However, it should not be used alongside prescription medicine for hypothyroidism as it may cause the thyroid gland to produce too much thyroxine and triiodothyronine. Tyrosine is found in a host of foods such as almonds, bananas, cheese and lima beans. It can also be taken as a nutritional supplement. Do not use tyrosine if you are taking monoamine oxidase inhibitors for depression as it may cause a dangerously rapid increase in blood pressure.
Omega-3 Fatty Acids
The UMMC website notes that omega-3 fatty acids may also provide support for an under active thyroid. Omega-3 fatty acids are found in oily fish such as herring, tuna, salmon and mackerel. They can also be obtained by taking a fish oil supplement. According to MedlinePlus, a service of the U.S. National Library of Health, taking three grams or less per day of fish oil is safe for most people. However, high doses can increase the risk of bleeding. Fish oil supplements may cause side effects including nausea, bad breath and heartburn.
Vitamin B2
According to the charity, Thyroid UK, a deficiency of vitamin B2 can suppress thyroid function. Also known as riboflavin, vitamin B2 is found in a variety of foods including meat, eggs, milk and green vegetables. It can also be taken as a nutritional supplement, usually in combination with other B vitamins. MedlinePlus notes that vitamin B2 is likely safe for the majority of people, but high doses may cause diarrhea.
