The Best Diet for Those Without a Thyroid

Do you struggle to find the right diet, despite managing your thyroid condition? Look no further – this guide outlines the best diet for those without a thyroid to ensure optimal health. You’ll learn how to meet your nutritional needs and discover which foods to incorporate and avoid.

Quick facts: Best Diet For Those Without A Thyroid

  • ✅ A thyroidectomy can result in a deficiency in nutrients such as iodine, selenium, and tyrosine, as well as vitamins A, D, and B12 (WebMD).
  • ✅ People without a thyroid are often advised to follow a low-iodine diet to reduce their risk of developing hyperthyroidism (Mayo Clinic).
  • ✅ People without a thyroid should focus on eating a balanced diet that includes foods high in fiber, protein, healthy fats and complex carbohydrates (Healthline).
  • ✅ Eating smaller and more frequent meals throughout the day can help with thyroid hormone production (Harvard Health Publishing).
  • ✅ Eating foods rich in vitamin A and zinc, such as fruits and vegetables, can help support overall thyroid health (WebMD).


The best diet for those without a thyroid is one that emphasizes a combination of nutrient-dense whole foods and healthy fats. A person without a thyroid should focus on eating foods that have plenty of nutrients, including vitamins, minerals, and antioxidants. The diet should also incorporate healthy fats, such as Omega-3 fatty acids, which are essential for normal hormone production. Additionally, the diet should include moderate amounts of protein to help maintain muscle mass while avoiding overly processed carbohydrates.

Finally, it’s important to ensure that all meals are balanced with enough calories to meet individual needs and support overall health. While there’s no single answer when it comes to eating right for those without a thyroid, following this basic dietary guideline can help ensure optimal health.

How Thyroid Disorders Impact Diet

Those with certain thyroid disorders may need to take extra steps when it comes to choosing the right diet. For instance, because the thyroid regulates metabolism and energy, people without a functioning thyroid may need to be careful about their calorie intake. Certain foods can also interfere with the absorption of thyroid medication, which is why it’s important to be aware of which foods to avoid.

Below, we’ll discuss how thyroid disorders can impact your diet and which foods are best to eat:


Hypothyroidism is a condition in which the thyroid gland, which is located at the front of the neck, can’t produce enough hormones to properly regulate metabolism. This occurs when either the pituitary gland doesn’t release enough stimulating hormones, or if there is an injury to the thyroid itself. Symptoms of hypothyroidism include weight gain, fatigue and cold sensitivity.

The best diet for those with hypothyroidism involves:

  • Increasing nutrient-dense foods such as fruits and vegetables that are high in fiber, as well as healthy fats such as avocados and olive oil.
  • Reducing consumption of refined carbohydrates such as white bread, pastries and chips to avoid large blood sugar swings.
  • Eating meals slowly and mindfully can also help manage cravings for sweets and other processed carbohydrates.
  • Including probiotic-rich foods such as yogurt and sauerkraut for their positive impact on gut health.
  • Supplementing with selenium may be important for those suffering from a thyroid condition due to its ability to boost immune function.


Hyperthyroidism occurs when the thyroid gland produces an excessive amount of thyroid hormones. Symptoms include weight loss, fatigue, irregular heartbeat, hand tremors, and heat intolerance.

When it comes to diet, those with hyperthyroidism should focus on foods that can improve their health. This includes eating a balanced diet high in fruits and vegetables, lean proteins, and whole grains. Additionally, eating smaller portion sizes more frequently throughout the day can provide increased energy levels.

As for beverages, those with hyperthyroidism should avoid alcohol and caffeine as these can worsen symptoms. Furthermore increase their intake of water as this will help to improve overall functioning of the body. Lastly ample amounts of rest must also be taken in order to keep stress levels low and allow for proper recovery from physical exertion.

Nutritional Requirements for Those Without a Thyroid

It is important for those without a thyroid to take extra caution when it comes to their nutrition. Due to the lack of the hormone thyroxine, the body has difficulty absorbing and utilizing the nutrients from food. Consequently, those without a thyroid are at risk of various nutrient deficiencies and must be mindful of their dietary habits.

Let’s take look at some of the nutritional requirements for those without a thyroid:

Adequate Calories

For those who do not have a thyroid, it is important to ensure an adequate intake of calories each day to prevent excessive weight loss and malnutrition. This is because the thyroid hormone, which helps regulate metabolism, is absent in thyroid-less individuals. A diet should contain adequate amounts of carbohydrates and protein to keep their metabolism at a healthy level. They should also make sure that their diet contains all the essential vitamins and minerals they need.

In addition to providing adequate calories, individuals without a thyroid should increase their intake of healthy fats like omega-3 fatty acids and monounsaturated fats. These fats help support overall health and keep the body functioning properly without the presence of a thyroid hormone. Finally, limiting sugar and processed foods helps promote optimal health for those without a thyroid, as these foods can disturb blood sugar levels and lead to other medical issues.


Macronutrients are a key part of any diet, and for those without a thyroid, they are especially important. Macronutrients consist of carbohydrates, protein, and fat. All three of these make up the majority of your daily caloric consumption.

For those without a thyroid, it is important to consume adequate amounts of each macronutrient in order to maintain healthy levels of hormones that regulate metabolism and energy levels. The American Thyroid Association recommends that patients consume a balanced diet that consists of 45-65 percent carbohydrates, 10-35 percent protein and 20-35 percent fat.

Additionally, adequate hydration is also important for individuals with no thyroid. Water helps to regulate body temperature and should be consumed throughout the day in order to stay hydrated and healthy.


For those without a thyroid, it can be difficult to fulfill micronutrient needs. Micronutrients include vitamins, minerals, and antioxidants which are essential for optimal health. Vitamin A, B-complex vitamins (such as B1, B2 and B6), Vitamin C, Vitamin E and Vitamin K are all important when lacking a thyroid gland. Minerals such as zinc, selenium and iodine also need to be included in the diet due to their vital role in many metabolic processes.

In addition to these key nutrients, adequate intake of healthy fats is necessary for those living without a functional thyroid gland. Omega-3 fatty acids found in fish oil can help reduce inflammation throughout the body while promoting healthy brain functioning. Omega-6 fatty acids are also important for reducing inflammation and providing necessary energy throughout the day. Lastly, it’s important to ensure adequate hydration throughout the day by consuming plenty of plain water or other non-caffeinated fluids such as bone broth or herbal tea.

Foods to Avoid

There are some dietary considerations to keep in mind when living without a thyroid, as certain foods may not be tolerated as well as others. This means some foods need to be avoided or limited when it comes to your diet. It is important to understand which foods to avoid in order to get the most out of your diet. Let’s take a closer look:

  • Foods high in iodine, such as seafood, seaweed, and dairy products.
  • Foods that contain goitrogens, such as cruciferous vegetables, soy products, and peanuts.
  • Foods that are high in sugar, such as candy, cookies, and cakes.
  • Foods that are high in saturated fat, such as red meat and processed meats.
  • Foods that are high in sodium, such as processed foods and canned soups.


Gluten-free diets have become increasingly popular in recent years, but they are especially important for those without a thyroid. Gluten is a protein found in foods such as wheat, barley, and rye. It is often used to give bread its light and fluffy texture and to help hold baked goods together. For those without a thyroid, gluten can trigger the autoimmune response associated with Hashimoto’s disease.

This autoimmune response creates inflammation that impairs the body’s ability to produce hormones. When people with Hashimoto’s avoid gluten, they often experience improvement in their symptoms. Other grains high in gluten such as farro, bulgur, and spelt should also be avoided.


Soy is a food that should be avoided if you have an underactive thyroid. Soy contains goitrogens, which are substances that block the production of thyroid hormones. Studies have shown that people with hypothyroidism tend to have lower levels of iodine, and consuming large amounts of soy can further reduce iodine absorption. Furthermore, soy can also interfere with medications used to treat hypothyroidism by interfering with the body’s absorption of the drug.

Finally, soy is also high in phytic acid, which has been linked to low T3 (thyroxine) levels and impairing thyroid activity. It’s best for those with an underactive thyroid to avoid all forms of soy, including:

  • Tofu
  • Soymilk
  • Edamame
  • Tempeh

Cruciferous Vegetables

Cruciferous vegetables are a type of plant which are part of the Brassicaceae family. Examples of these vegetables include broccoli, cauliflower, cabbage, Brussels sprouts, bok choy, and kale. Cruciferous vegetables can be a good source of fiber and certain minerals but for those with hypothyroidism or an underactive thyroid, it’s best to avoid these foods as they can interfere with the absorption of thyroid medication.

When taken in large amounts these vegetables can inhibit the uptake of iodine which is essential for proper functioning of the thyroid gland. Therefore, it’s best to limit consumption or avoid cruciferous vegetables altogether if possible when managing an underactive thyroid.

Foods to Include

Eating a well-balanced diet is essential for people with hypothyroidism, as it helps regulate thyroid hormone levels. To get the most health benefits, eating a variety of nutrient-rich foods is essential. This includes including foods high in protein, healthy fats, complex carbohydrates, vitamin A and C, selenium, iodine, calcium, and other minerals.

Let’s take a look at the best foods for people with hypothyroidism:

Fruits and Vegetables

Fruits and vegetables should be an essential part of any diet, especially for those without a thyroid. Fruits and vegetables are naturally low in calories, yet packed with essential vitamins, minerals, antioxidants, fiber, and other phytonutrients that play an important role in the body’s overall health. Additionally, these nutrient-dense foods provide the body with important fuel for energy production.

For optimal health benefits, individuals without a thyroid should aim to consume a wide variety of fruits and vegetables from all five food groups:

  • Dark green veggies (broccoli & spinach)
  • Orange veggies (carrots & sweet potatoes)
  • Beans & legumes (chickpeas & lentils)
  • Starchy veggies (corn & potatoes)
  • Fruits of all colors (apples & oranges)

Choose fresh or frozen fruits and vegetables whenever possible to get the most nutrients. Canned items are convenient but may contain added sodium or sugar that can contribute to unwanted weight gain.

Lean Proteins

Lean proteins are an important part of any diet, especially for those without a thyroid. Lean proteins such as chicken, turkey, fish, and eggs provide essential amino acids that help build and repair body tissues. They also provide essential fatty acids that are important for hormone balance and energy production. Eating lean proteins also helps to regulate appetite which can be an issue in those without a thyroid. Additionally, lean proteins provide several health benefits including anti-inflammatory properties and improved heart health.

It is recommended to include lean proteins in your diet at least 2-3 times per day for optimal health benefits.

Healthy Fats

For those without a thyroid, healthy fats are necessary for balanced hormone levels. Healthy fats should be included in the diet; however, they should not make up a large portion of the total caloric intake. Monounsaturated and polyunsaturated fats, such as avocados, raw nuts, and vegetable oils should be prioritized. Omega-3 fatty acids from seafood (salmon and tuna, in particular) are also beneficial for maintaining hormone balance. Additionally, some saturated fats from animal sources (such as butter or ghee) may be included as well.

Including a variety of these foods in the diet can help ensure that essential fatty acid needs are met and support proper hormone levels.

Meal Planning

For those without a thyroid, meal planning is an important part of managing their condition. Eating small meals spread out throughout the day can help to avoid side effects of hyperthyroidism or hypothyroidism such as nausea and fatigue. Eating regular and nutritious meals will also prevent sudden spikes in blood sugar levels which could wreak havoc on hormonal balance.

It’s also important to include foods that are rich in nutrients such as iron, calcium, iodine, selenium and zinc which are necessary for proper thyroid functioning. For example, cruciferous vegetables, lean proteins, dairy products, green leafy vegetables and nuts are all good sources of these vitamins and minerals. It’s also important to limit processed foods as much as possible since they often contain unhealthy additives like sugar and sodium which can interfere with hormone balance in those without a thyroid. Finally, it’s always wise to consult with a registered dietician if you’re looking for personalized recommendations on crafting a healthy diet plan specific to your needs.


When it comes to those without a thyroid, it is important to ensure they are eating a nutritious and balanced diet that includes plenty of fruits and vegetables, whole grains, lean proteins, healthy fats and probiotics. Additionally, foods with selenium should be incorporated into the diet as this nutrient helps compensate for low production of thyroid hormones. Exercise is also important for people with no thyroid as it helps in improving mood and energy levels.

In conclusion, for those without a thyroid, following a balanced diet is essential to maintain good health. Eating well-balanced meals regularly can help improve overall health, reduce the risk of obesity and other chronic diseases such as diabetes. In addition to a nutritious diet, regular physical activity can help individuals achieve their desired goals when it comes to good health.

FAQs about: Best Diet For Those Without A Thyroid

Q: What is the best diet for someone without a thyroid?

A: People who don’t have a thyroid should focus on consuming foods that are low in calories, carbohydrates, and fats, but high in fiber. They should also incorporate lean proteins, whole grains, fruits, and vegetables into their diet. In addition, they should drink plenty of water, limit caffeine and alcohol, and avoid processed and refined foods.

Q: What foods should people with no thyroid avoid?

A: People without a thyroid should avoid processed and refined foods, as well as foods high in calories, carbohydrates, and fats. They should also avoid alcohol, caffeine, and sugary drinks. Additionally, they should avoid foods that contain gluten and dairy, as these can be difficult to digest.

Q: Are there any supplements people with no thyroid should take?

A: People without a thyroid should take a multivitamin supplement, as well as a supplement containing iodine. Additionally, they may want to consider taking a supplement containing omega-3 fatty acids, as well as a probiotic supplement.

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