The Best Diet for Hyperthyroidism: Foods to Eat and Foods to Avoid

Do you have hyperthyroidism? Eating the right foods is essential for managing your health. In this blog, we will discuss the best diet for hyperthyroidism – what to eat and what to avoid. You’ll learn how to make dietary changes that can help you manage your condition.

Quick facts: Best Diet For Hyperthyroidism Foods To Eat Foods To Avoid

  • ✅ Hyperthyroidism can be managed by controlling one’s diet, with consumption of high-fiber foods, lean proteins and complex carbohydrates recommended. – Harvard Health Publishing
  • ✅ Seafood, nuts, and dairy products should be avoided, as they can interfere with thyroid hormone production. – Cleveland Clinic
  • ✅ Eating foods that contain iodine, such as kale and Swiss chard, can help support better thyroid function. – American Thyroid Association
  • ✅ Eating foods rich in anti-inflammatory properties, such as green leafy vegetables, can help reduce inflammation in the body associated with hyperthyroidism. – The National Institutes of Health
  • ✅ Avoiding trans fats and processed foods, as well as caffeine and alcohol, can help reduce symptoms of hyperthyroidism. – Mayo Clinic


Hyperthyroidism is a condition where the thyroid gland produces too much of the thyroid hormone, which can result in many physical and mental symptoms such as hyperactivity, heart palpitations, and anxiety.

A diet for hyperthyroidism focuses on whole foods that are nutrient-dense and low in added sugars and refined carbohydrates. Eating plenty of fruits and vegetables while avoiding processed foods also helps to improve symptoms. Additionally, certain foods can help to reduce inflammation associated with the condition while other foods may worsen it.

This guide will provide an overview of what should be included in a Hyperthyroidism diet as well as which foods should be avoided:

Types of Hyperthyroidism

Hyperthyroidism is a condition when the thyroid gland produces too much of the hormone thyroxine. It can be caused by autoimmune issues like Grave’s Disease, or can be caused by an overactive pituitary gland or overactive thyroid nodules. Common symptoms associated with hyperthyroidism include anxiety, insomnia, weight loss, and heat intolerance.

There are three types of hyperthyroidism: primary hyperthyroidism, secondary hyperthyroidism and tertiary hyperthyroidism. Primary Hyperthyroidism is due to Grave’s disease in which there is an excess production of thyroxine by the thyroid gland itself. Secondary Hyperthyroidism occurs when the pituitary gland produces too much TSH which stimulates excessive production of thyroxine by the thyroid gland. Tertiary Hyperthyroidism occurs when there is an overactive Thyrotropin Releasing Hormone (TRH) produced from the hypothalamus. This causes increased release of TSH which stimulates excessive production of thyroxine by the thyroid gland.

The best diet for managing your hyperthyroidism depends on the type you have and how it affects you specifically. Generally, a diet rich in anti-inflammatory foods and low in sugar, caffeine and processed foods is recommended for all types of hyperthyroidism for healthful overall management of symptoms and to reduce inflammation associated with autoimmunity disorders such as Grave’s disease that cause primary type hyperthyoroidism symptoms.

The Best Diet for Hyperthyroidism

People with hyperthyroidism have an overactive thyroid, which causes their body to produce excessive amounts of thyroid hormones. Eating a balanced and healthy diet is essential to managing hyperthyroidism. Certain foods can balance the amount of hormone production and help protect your health.

Let us explore the best diet for hyperthyroidism and the foods to eat or avoid:

Foods to Eat

When managing a hyperthyroid condition, it is important to choose foods that are nutrient dense, lower in salt and sugar, and able to provide the necessary vitamins and minerals needed for overall health. Some of the best options for people with hyperthyroidism include:

  • Lean meats such as fish, chicken, or turkey
  • Fruits such as berries, apples, pears, oranges
  • Non-starchy vegetables like leafy greens, broccoli, cauliflower
  • Healthy fats like avocados and olive oil
  • Whole grains like quinoa or brown rice

Eating a balanced diet can help manage symptoms of hyperthyroidism by providing the body with essential nutrients. By limiting processed and sugary foods, you can also keep blood glucose levels in check. Eating a variety of these foods can also help prevent nutrient deficiencies that might arise when dealing with issues related to hyperthyroidism.

Fruits and Vegetables

Fruits and vegetables are an important part of a balanced diet for anyone, including those with hyperthyroidism. Fruits and vegetables provide essential vitamins and minerals to the body and can help manage or treat any health problems. Eating optimal amounts of fruits and vegetables is especially important for those with hyperthyroidism as certain types may help reduce symptoms.

For example, cruciferous vegetables like broccoli, cauliflower, cabbage, kale, Brussels sprouts, arugula, watercress, radishes or kohlrabi may be beneficial because they contain goitrogens which can help reduce thyroxine levels in the blood. Other organic produce like celery, asparagus or onions are thought to inhibit thyroid peroxidase activity which can also help regulate hormone levels. Additionally citrus fruits like oranges and limes have been shown to have anti-inflammatory properties that may lessen symptoms like fatigue or muscle pain associated with an overactive thyroid gland.

Whole Grains

Whole grains are an important part of a balanced diet for people with Hyperthyroidism. They contain fiber, vitamins, minerals and antioxidants which can help to control your symptoms. Whole grains such as oatmeal, quinoa, bulgur wheat, barley, brown rice and millet can help to stabilize blood sugar levels and reduce the risk of insulin resistance. Additionally they provide energy and contain beneficial plant compounds which can reduce inflammation associated with Hyperthyroidism.

Eating whole grains regularly has also been shown to improve gut health by promoting beneficial bacteria in the gut microbiome. This can improve digestion as well as overall health for those with Hyperthyroidism. Try to include at least 2 servings of whole grains into your diet each day for better management of the symptoms associated with Hyperthyroidism.

Lean Proteins

Lean proteins can help keep blood sugar levels stable and also provide essential nutrients such as iodine, selenium, and tyrosine which can benefit the thyroid. Lean sources of protein include:

  • Fish
  • Chicken
  • Turkey
  • Eggs
  • Tofu
  • Beans and legumes.

All of these options have the added benefit of being low in saturated fat which can be beneficial for those with hyperthyroidism. When selecting lean proteins it’s important to opt for hormone-free or organic options whenever possible to avoid any potential hormones that could interfere with the endocrine system. Additionally, plant-based proteins such as tofu and beans are good sources of fiber and can help with digestion as well.

Healthy Fats

Healthy fats are beneficial for those with hyperthyroidism as these fats provide essential fatty acids, which can help with the regulation of hormones. These healthy fats also provide slow-burning energy and help us absorb important fat-soluble vitamins like Vitamin A, D and E.

Examples of healthy fats include:

  • Omega-3 fatty acids found in oily fish such as salmon, mackerel and sardines;
  • Avocados;
  • Olives;
  • Nuts such as almonds, cashews and walnuts;
  • Seeds such as chia, flax and hemp;
  • Olive oil;
  • Coconut oil and ghee (clarified butter).

Eating a variety of these foods helps ensure that you have an adequate amount of essential fatty acids in your diet. Additionally, when consuming healthy fats it’s important to avoid unhealthy fats such as trans fats found in processed foods to keep inflammation at bay.

Foods to Avoid

When it comes to dieting for hyperthyroidism, the most important thing is to avoid certain foods that can worsen the symptoms of thyroid issues. Foods like soy, dairy products, goitrogenic vegetables, food high in fats or processed sugars should be avoided as much as possible.

  • Soy products are particularly worrisome for people with hypothyroidism because they contain phytoestrogens which might interfere with your body’s ability to produce hormones.
  • Dairy products contain iodine which can cause further problems with thyroid production and usage of hormones.
  • Goitrogens are substances found in some vegetables that can interfere with the normal production and regulation of thyroid hormones.
  • Lastly, an excessive amount of fats and processed sugars can strain your system and create further health complications.

Sticking to a well balanced diet and avoiding these foods will help you manage your symptoms and make sure that you stay healthy despite the condition.


Caffeine consumption is a particular concern for those who are managing their hyperthyroidism. This stimulant can heighten the effects of the disorder, causing feelings of anxiety and fatigue. It can also worsen issues like palpitations, racing heart rate, and insomnia. Therefore, it is advised that those with hyperthyroidism should limit their caffeine intake or avoid it altogether.

Coffee is not without its benefits however; research suggests that drinking coffee in moderation can help reduce levels of serum thyrotropin (TSH) in people with hyperthyroidism. Those looking to cut down on caffeine can opt for decaf coffee or herbal tea instead.

Processed Foods

Processed foods are those that have been modified or altered from their original form, such as canned goods, white bread, and frozen dinners. These types of foods lack essential nutrients and are often full of salt and other additives. As such, they should be avoided on a hyperthyroidism diet.

Processed meats such as bacon and sausage can be especially problematic due to their high sodium content. Replacing these with leaner sources of protein like fish and chicken is recommended. Eating processed cheeses can also cause potential health issues due to the high saturated fat content. Low-fat cottage cheese is an excellent source of protein that is lower in fat content than most processed cheeses.

Refined Sugars

Refined sugars are those which have been processed or bleached in order to create a sweeter product. This includes white sugar, brown sugar, raw sugar, and high-fructose corn syrup. These sugars are considered to be refined carbohydrates since they do not offer any nutritional value other than providing a burst of energy in the form of simple carbohydrates.

For those with hyperthyroidism, avoiding refined sugars is important as they can cause an increase in blood glucose levels which can make it difficult for the body to regulate its hormones. Additionally, some studies have suggested that refined sugars may contribute to weight gain which can exacerbate symptoms associated with hyperthyroidism. Therefore, individuals with this condition should aim to avoid or limit their intake of these products and instead opt for more natural sweeteners such as honey or maple syrup.


Gluten is a protein found in grains like wheat, spelt, rye and barley. While most people can eat gluten without any issues, those with certain medical conditions such as hyperthyroidism should avoid it. Gluten can act as an irritant to the small intestines and may cause problems with digestion and mineral absorption. Additionally, gluten may trigger autoimmune reactions that are detrimental to those with hyperthyroidism. Therefore, it is recommended to avoid all foods containing gluten when dealing with this condition.

Also included in the food groups that should be avoided due to their potential of aggravating the thyroid are processed sugar and refined carbohydrates. Foods high in sugar and refined carbohydrates can aggravate both hypothyroidism or hyperthyroidism since they lead to insulin resistance, which can trigger further symptoms of thyroid disease.


Hyperthyroidism is a common condition caused by an excess production of the thyroid hormone. If left untreated, it can have serious health implications. Therefore, it is important to manage the condition with a well-balanced diet.

The best diet for hyperthyroidism typically consists of foods rich in vitamins and minerals to provide your body with the nourishment it needs while avoiding foods high in sugar and fat that can aggravate symptoms. Some nutritious and delicious food choices include:

  • Lean meats
  • Fish
  • Legumes
  • Fruits
  • Vegetables
  • Nuts and seeds

Alternatively, some foods should be avoided due to their high sodium or sugar content. These include:

  • Processed meats
  • Fried foods
  • Sugary snacks and drinks sweetened with artificial sweeteners

Additionally, certain vegetables such as cruciferous vegetables should also be avoided if you have hyperthyroidism due to their goitrogenic properties which interfere with thyroid hormone production.

In conclusion, following a healthy diet tailored for hyperthyroidism is essential for managing the condition safely and effectively.

FAQs about: Best Diet For Hyperthyroidism Foods To Eat Foods To Avoid

Q: What is the best diet for hyperthyroidism?

A: A healthy diet for hyperthyroidism should include foods that are low in sodium, high in fiber, and rich in nutrients. Examples of these types of foods include fruits and vegetables, whole grains, nuts and seeds, and lean proteins. It is also important to limit processed foods, sugar, and caffeine.

Q: What foods should I eat for hyperthyroidism?

A: Foods that are beneficial for people with hyperthyroidism include fruits and vegetables, whole grains, nuts and seeds, and lean proteins. Additionally, some research suggests that foods rich in selenium, such as Brazil nuts, may help to reduce the symptoms of hyperthyroidism.

Q: What foods should I avoid if I have hyperthyroidism?

A: People with hyperthyroidism should avoid foods that are high in sodium, refined carbohydrates, and caffeine. Additionally, limit processed and fried foods, and foods containing artificial additives, preservatives, and refined sugar.

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