Whether it’s hyperthyroidism, hypothyroidism, or Hashimoto’s thyroiditis—thyroid problems can pose many challenges in the lives of those affected. Although the thyroid is a relatively small organ, it plays a major role in our body’s health. It regulates metabolism, influences our energy levels, and even affects our mood. If it becomes unbalanced, we usually notice it right away.
Fortunately, however, with the right diet and targeted nutrient intake, there’s a lot we can do to support thyroid health when dealing with thyroid issues. In this article, you’ll find valuable tips on how to boost your thyroid health through your diet. We’ll also tell you which foods are good for you if you have thyroid issues and which ones are less suitable.
The Most Important Nutrients for Your Thyroid Gland
Some nutrients are especially important for your thyroid health. These include, first and foremost:
- Iodine is arguably the most important nutrient for the thyroid gland. This trace element is an essential component of the two thyroid hormones, triiodothyronine (T3) and thyroxine (T4). Without an adequate intake of iodine, the thyroid gland cannot produce hormones.
- Selenium is an important cofactor for the enzymes involved in the conversion of T4 to T3. As an antioxidant, it also protects the thyroid gland from oxidative stress.
- Zinc supports the production and regulation of thyroid hormones.
- Iron also plays a crucial role in the production of thyroid hormones.
- Vitamin D3 supports healthy immune system function and can thus help reduce inflammation that may affect the thyroid gland. It also influences the release of the thyroid hormone thyroxine.
- Vitamin A plays a role in the release of thyrotropin (TSH)—a hormone that regulates all functions of the thyroid gland.
These Foods Support Your Thyroid
You can give your thyroid a helping hand, and to do that, we recommend foods that are particularly rich in the nutrients mentioned. These include, among others:
- Iodine is found in abundance in saltwater fish, seafood, seaweed, and iodized table salt.
- Selenium is found primarily in Brazil nuts, tuna, sunflower seeds, eggs, and mushrooms.
- Oysters, beef, pumpkin seeds, lentils, and chickpeas are rich in zinc.
- Red meat is high in iron, but spinach, legumes, pumpkin seeds, and lentils also contain significant amounts.
- Vitamin D3 is primarily produced in the skin through exposure to sunlight, provided you aren't using sunscreen. However, there are also some foods that contain small amounts of vitamin D3—these include fatty fish, wild mushrooms, cod liver oil, and egg yolks.
- Carrots, sweet potatoes, pumpkin, liver, kale, apricots, and mangoes are rich in vitamin A.
The Right Diet for Hyperthyroidism
In hyperthyroidism, the thyroid gland produces too many hormones.
It’s important to regulate your metabolism and lower your hormone levels. Foods rich in omega-3 fatty acids, as well as vitamins C, D3, and the B vitamins, can be particularly helpful in this regard. We also recommend a balanced combination of various minerals—such as iron, selenium, and zinc—as found in Pro Mineral Complete.
To “slow down” your thyroid’s function a bit, it’s also advisable to avoid iodine-rich foods —while still ensuring you get the recommended 200 µg per day. In addition, coffee and alcohol can exacerbate typical symptoms of hyperthyroidism, such as nervousness and a racing heart.
Here is a nutritional chart listing foods that are suitable and less suitable for people with hyperthyroidism:
| Recommended Foods for Hyperthyroidism | Foods to Avoid If You Have Hyperthyroidism |
|---|---|
| fresh fruits and vegetables | Iodized salt |
| lean meat | Seafood and Seaweed |
| Eggs | caffeinated beverages |
| Legumes | Alcohol |
| Nuts and Seeds | processed foods and fast food |
| Whole-grain products, rice | |
| Flax, chia, and hemp seeds or oil |
Dietary Recommendations for Hypothyroidism
With hypothyroidism, the situation is exactly the opposite: The thyroid gland produces too few hormones and therefore needs to be supported in its function. Iodine, of course, plays a key role here. However, other nutrients such as selenium, iron, zinc, magnesium, vitamin D, B vitamins, and omega-3 fatty acids are also crucial for counteracting any potential nutrient deficiencies.
However, you should avoid certain foods that can inhibit iodine absorption—these foods are also called “goitrogenic foods.” These include, above all, various types of cabbage and soy products.
The following table shows you which foods are suitable and which are less suitable for a diet when you have hypothyroidism:
| Foods That Are Good for Hypothyroidism | Foods to Avoid If You Have Hypothyroidism |
|---|---|
| Seafood and fatty fish | Goitrogenic foods: soy products, cabbage, broccoli, cauliflower |
| Beef | highly processed, nutrient-poor foods |
| Dairy Products and Eggs | refined carbohydrates and sugar |
| Nuts and Seeds | |
| Legumes | |
| Vegetables such as carrots, sweet potatoes, squash, and spinach | |
| Whole-grain products |
What is the recommended diet for Hashimoto's thyroiditis?
Hashimoto's thyroiditis is an autoimmune disease in which the body's own immune system attacks the thyroid gland. This autoimmune reaction leads to chronic inflammation of the thyroid gland, which in turn causes hypothyroidism.
It is crucial to follow an anti-inflammatory, nutrient-rich diet —key nutrients here include selenium, vitamin D3, omega-3 fatty acids, and B vitamins. Foods that promote inflammation, on the other hand, are less recommended.
The following table shows you which foods are suitable for people with Hashimoto's thyroiditis and which are less so:
| Foods Recommended for Hashimoto's Thyroiditis | Foods to Avoid if You Have Hashimoto's Thyroiditis |
|---|---|
| fresh vegetables | highly processed, nutrient-poor foods |
| lean meat | refined carbohydrates and sugar |
| Legumes | Corn |
| Mushrooms | high-fat dairy products |
| Flaxseed, hemp, and algae oil | refined oils |
| Nuts and Seeds | foods high in gluten |
| Leafy vegetables | Goitrogenic foods: soy products, cabbage, broccoli, cauliflower |
Conclusion
A healthy and well-functioning thyroid is essential for feeling healthy and well-rounded. But whether you’re dealing with hyperthyroidism, hypothyroidism, or Hashimoto’s thyroiditis— the right diet can make a big difference. That’s because carefully selecting the right foods and nutrients can support your thyroid’s function and, in turn, boost your overall well-being. Your thyroid will thank you for it!
But remember: A healthy diet can support your thyroid health. However, it is not a cure-all. That’s why it’s important to seek treatment from your doctor or naturopath if you have serious thyroid problems. They’ll discuss the next steps with you to help restore balance to your thyroid’s health.
Sources
- German Thyroid Center: Iodine, Selenium, Vitamins, and Nutrition. Retrieved May 24, 2024.
- Robert Koch Institute: Iodine Intake. Retrieved May 24, 2024.
- German Nutrition Society: Iodine. Retrieved June 1, 2024.
- NetDoktor: Vitamin A – Foods High in Vitamin A. Retrieved June 13, 2024.
