Your thyroid is a small butterfly-shaped gland in your neck, but it plays a big role in controlling metabolism, energy, and hormone balance. If you have hypothyroidism or other thyroid issues, what you eat can make a huge difference. While some foods are nourishing for thyroid health, others may interfere with hormone production or absorption of thyroid medication. To support your well-being, here are 19 foods you should avoid (or limit) if you have thyroid problems.
1. Soy Products
Soy contains isoflavones that may interfere with thyroid hormone production. This includes soy milk, tofu, and soy protein powder.
2. Cruciferous Vegetables (Raw)
Broccoli, cauliflower, kale, and Brussels sprouts contain goitrogens that can block iodine absorption, especially when eaten raw. Cooking them reduces the effect.
3. Gluten-Containing Grains
Wheat, barley, and rye may trigger inflammation and worsen symptoms in people with thyroid disease, especially those with Hashimoto’s thyroiditis.
4. Sugary Foods
Excess sugar contributes to weight gain, fatigue, and insulin resistance, which can worsen hypothyroid symptoms.
5. Processed Foods
Fast food, packaged snacks, and frozen meals often contain unhealthy fats and additives that disrupt metabolism.
6. Fried Foods
Deep-fried items contain trans fats, which can impair thyroid function and contribute to weight gain.
7. Excess Caffeine
Too much coffee, tea, or energy drinks may increase anxiety, palpitations, and interfere with thyroid medication absorption.
