Foods to Avoid for Overactive Thyroid
Having an overactive thyroid, medically known as hyperthyroidism, means that your thyroid gland is producing too much of the thyroid hormone. To manage this condition, it’s important to eat a healthy diet and avoid certain foods that can aggravate your symptoms.
Cruciferous Vegetables
Cruciferous vegetables such as broccoli, cauliflower, kale, cabbage, Brussels sprouts, and bok choy are high in goitrogens, naturally occurring substances that can interfere with thyroid function. Eating these vegetables raw or lightly steamed is generally safe, as cooking them can reduce their goitrogen content.
Soy
Soybeans and foods made from soy, such as tofu and tempeh, contain compounds known as isoflavones, which may interfere with the production of thyroid hormones. Eating moderate amounts of soy is unlikely to cause any issues, but it is best to avoid large amounts of soy products if you have an overactive thyroid.
Dairy
Dairy products, such as milk, cheese, and yogurt, are high in calcium, which can interfere with the absorption of thyroid hormones. If you have an overactive thyroid, it is best to stick to calcium-fortified dairy-free alternatives, such as almond milk or oat milk.
Processed Foods
Processed foods are generally high in sodium, which can cause fluid retention and worsen the symptoms of hyperthyroidism. It is best to limit your intake of processed foods, such as fast food, chips, and frozen meals, and opt for fresh, whole foods instead.
Caffeine
Caffeine is a stimulant that can increase your heart rate and worsen the symptoms of hyperthyroidism. It is best to limit your intake of caffeinated beverages, such as coffee, tea, and soda, and opt for caffeine-free alternatives instead.