Your thyroid is one of your endocrine glands, which make hormones.

Thyroid hormones control the rate of many activities in your body. These include how fast you burn calories and how fast your heart beats. Thyroid disorders can range from a small, harmless goiter (enlarged gland) that needs no treatment to life-threatening cancer. Technically, there’s no specific diet used to treat thyroid disorders, but there are certain foods that can help you feel your best—and ones that you might want to avoid.