The most common cause of goiters worldwide is a lack of iodine in the diet. In the United States, where the use of iodized salt is common, a goiter is more often due to the over- or underproduction of thyroid hormones or to nodules in the gland itself.
What deficiency causes a goiter?
Iodine deficiency is the most common cause of goiter. The body needs iodine to produce thyroid hormone. If you do not have enough iodine in your diet, the thyroid gets larger to try and capture all the iodine it can, so it can make the right amount of thyroid hormone.
What foods cause goiter?
Goitrogens
- Soy foods: tofu, tempeh, edamame, etc.
- Certain vegetables: cabbage, broccoli, kale, cauliflower, spinach, etc.
- Fruits and starchy plants: sweet potatoes, cassava, peaches, strawberries, etc.
- Nuts and seeds: millet, pine nuts, peanuts, etc.
