Hypothyroidism is a condition where the thyroid gland does not produce enough hormones, which can affect metabolism, energy, and overall well-being. A diet for hypothyroidism can help maintain normal hormone levels and improve quality of life. In this article, we will explore which foods to include in your diet and which to avoid to ease the symptoms of hypothyroidism.
The role of iodine in the diet for hypothyroidism
The importance of iodine
Iodine is a key element for the production of thyroid hormones. Iodine deficiency can lead to an enlarged thyroid gland, known as a goitre, and worsen hypothyroidism symptoms. Foods rich in iodine, such as seafood, dairy products, and eggs, can help maintain a healthy level of this element.
Iodine is important for the synthesis of thyroxine (T4) and triiodothyronine (T3), which regulate metabolism. Without sufficient iodine, the thyroid gland cannot produce these hormones in the required amounts, leading to slowed metabolism, fatigue, and weight gain.
Sources of iodine
- Seaweed
- Fish (tuna, cod)
- Dairy products (milk, yoghurt)
- Eggs
It is important to remember that excess iodine can also be harmful, so it is advisable to adhere to recommended intake levels. For example, adults are recommended to consume about 150 mcg of iodine per day. This can be achieved by consuming seafood twice a week and adding iodised salt to meals.
Tips for iodine consumption
To avoid iodine deficiency, it is worth paying attention to the quality of products. Choose fresh seafood and avoid processed foods, which may contain fewer beneficial substances. It is also useful to include iodised salt in your diet, but do not exceed the daily norm.
If you live in a region with low iodine content in the soil, consider taking iodine supplements after consulting with a doctor. This can be especially beneficial for pregnant women, who have an increased need for iodine.
Selenium and its significance
Functions of selenium
Selenium is an antioxidant that helps protect the thyroid gland from damage and supports hormone production. Selenium deficiency can worsen thyroid function and exacerbate hypothyroidism symptoms. Selenium also aids in converting the hormone T4 into the active form T3, which is important for energy metabolism.
Selenium helps reduce inflammation levels in the body, which can be beneficial for people with autoimmune forms of hypothyroidism. It also affects the immune system, helping the body fight infections.
Foods rich in selenium
- Brazil nuts
- Sunflower seeds
- Tuna
- Chicken meat
Including these foods in your diet can support thyroid health. For example, just 2-3 Brazil nuts a day can provide the daily norm of selenium. It is important not to exceed the dose, as excess selenium can be toxic.
Tips for selenium consumption
For optimal selenium absorption, it is recommended to consume foods rich in this element together with sources of vitamin E, such as avocado or olive oil. This will help improve the body's antioxidant protection.
If you have dietary restrictions that make it difficult to get enough selenium, consider taking supplements. However, be sure to consult with your doctor before doing so.
Avoiding soy and gluten
Soy and its impact
Soy contains isoflavones, which can affect thyroid function. Research shows that excessive soy consumption may reduce the effectiveness of medications for treating hypothyroidism (Caprio et al., Frontiers in endocrinology, 2022). Therefore, it is advisable to limit the intake of soy products such as soy milk, tofu, and soy sauces.
Isoflavones may block the absorption of iodine by the thyroid gland, which can worsen the condition in hypothyroidism. If you do consume soy products, try to do so separately from taking thyroid medications to avoid interactions.
Gluten and hypothyroidism
Some studies suggest a link between gluten and autoimmune thyroid diseases. Avoiding gluten may help reduce inflammation and improve symptoms in some people with hypothyroidism. This is particularly relevant for those with gluten sensitivity or coeliac disease.
Gluten can trigger inflammatory reactions in the body, which may exacerbate hypothyroidism symptoms.
Practical tips for avoiding soy and gluten
To avoid soy and gluten, pay attention to product labels. Choose gluten-free alternatives such as rice or corn flour. Instead of soy products, you can use coconut or almond milk.
If you often eat out, find out about the ingredients of dishes in a restaurant or café beforehand. This will help avoid accidental consumption of soy or gluten.
Antioxidants for health support
The role of antioxidants
Antioxidants help protect cells from damage and support overall health. They can be particularly beneficial for people with hypothyroidism as they help reduce inflammation. Antioxidants such as vitamins C, E, and beta-carotene support the immune system and promote cell recovery.
Antioxidants can also improve circulation and reduce the risk of cardiovascular diseases, which often accompany hypothyroidism. They help neutralise free radicals, reducing oxidative stress in cells.
Sources of antioxidants
- Berries (blueberries, raspberries)
- Green tea
- Dark chocolate
- Nuts
Including these foods in your diet can support overall health and improve well-being. For example, a cup of green tea a day can provide the body with powerful antioxidants that aid detoxification.
Tips for consuming antioxidants
It is recommended to consume a variety of antioxidant sources to gain maximum benefit. For example, combine berries with yoghurt or add nuts to salads to increase antioxidant action.
Try adding berries to your morning porridge or making smoothies with green tea. This is not only tasty but also beneficial for your body.
Balanced nutrition
Meal planning
A balanced diet that includes all necessary nutrients is important for maintaining health with hypothyroidism. It is important to include a variety of foods in your diet to provide the body with all the necessary vitamins and minerals. This will help maintain energy and overall well-being.
A balanced diet should contain sufficient amounts of proteins, fats, and carbohydrates. Proteins help repair tissues, fats are a source of energy, and carbohydrates provide the body with glucose, which is the main source of energy for cells.
Nutrition tips
- Include a variety of vegetables and fruits in your diet
- Choose whole grain products
- Avoid processed foods and excessive sugar
Such nutrition can help maintain energy and overall well-being. For example, choose whole grain bread instead of white bread, and fruits instead of sweets.
Practical tips for balanced nutrition
Plan your menu for the week to avoid the temptation of quick snacks. Use seasonal vegetables and fruits to gain maximum benefit. Cook meals at home to control the quality of ingredients.
Try steaming or baking dishes to preserve more nutrients. Use a variety of spices to enhance flavour without adding extra calories.
Scientific Sources
- Case report: Goiter and overt hypothyroidism in an iodine-deficient toddler on soy milk and hypoallergenic diet, Frontiers in endocrinology, 2022
- Effects of Dietary Phytoestrogens on Hormones throughout a Human Lifespan: A Review, Nutrients, 2020
Read Also
- Weekly menu for hypothyroidism: focus on iodine and selenium
- Diet for autoimmune diseases: focus on health
Balanced nutrition is an important part of maintaining health with hypothyroidism. If you wish to receive an individual nutrition programme, book a consultation with our dietitian.
Frequently Asked Questions
What foods should be included in the diet for hypothyroidism?
Include foods rich in iodine and selenium, such as seafood, dairy products, eggs, Brazil nuts, and tuna.
Why is it important to avoid soy in hypothyroidism?
Soy contains isoflavones, which can reduce the effectiveness of medications for treating hypothyroidism and block iodine absorption.
How does gluten affect hypothyroidism?
Avoiding gluten may reduce inflammation and improve symptoms in people with hypothyroidism, especially if there is gluten sensitivity.
Which antioxidants are beneficial for hypothyroidism?
Antioxidants such as vitamins C, E, and beta-carotene help reduce inflammation and support overall health.
Article Author: Olga Bezugla — PhD in Medicine, clinical dietitian, and expert in metabolic health and clinical nutrition. Postdoctoral fellowship — DIfE (Deutsches Institut für Ernährungsforschung), Potsdam, Germany. More About the Doctor