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Cuoihoi Foods to Improve an Underactive Thyroid

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Hypothyroidism, also known as underactive thyroid or low thyroid, refers to a condition in which the thyroid gland is not able to make enough hormones to keep the body running normally.

The activity of the small, butterfly-shaped gland located in your neck affects a variety of systems in the body. The hormones produced by this gland (TSH, T3 and T4) regulate mood, metabolism, energy levels, body temperature, heart rate and blood pressure.

Some symptoms of an underactive thyroid include constant fatigue, sudden weight gain and inability to lose weight, increased sensitivity to cold, constipation, extremely dry skin, puffy face, hoarseness, high blood cholesterol levels, muscle aches, joint pain, thinning hair and impaired memory.


The symptoms may be mild in the beginning, but as your metabolism continues to slow, they become more noticeable.

To treat your underactive thyroid, medications are needed. Treatment of hypothyroidism with synthetic thyroid hormones is a simple, safe and effective option. However, certain foods can also help improve thyroid health and boost the effectiveness of your metabolism.

foods to improve underactive thyroid

Here are the top 10 foods to eat to improve an underactive thyroid.


1. Brazil Nuts

brazil nuts

Selenium is an important mineral for proper thyroid functioning. It protects the thyroid from inflammatory by products of hormone production.

A 2015 study published in The Journal of Clinical Endocrinology & Metabolism notes that low selenium is associated with increased risk of thyroid disease. Moreover, increased selenium intake may reduce this risk.

The best source of selenium is Brazil nuts. A 2008 study published in the American Journal of Clinical Nutrition states that eating two Brazil nuts on a daily basis is effective for increasing selenium status.

In fact, including this high-selenium food in your diet could prevent the need for fortification or supplements to improve the selenium status.

Furthermore, because Brazil nuts are rich in the amino acid L-arginine, they even help reduce weight.

You can eat 2 or 3 Brazil nuts as a healthy snack, or include a few in salads or stir-fries.

2. Coconut Oil

coconut oil

Coconut oil contains healthy medium-chain fatty acids that help people suffering from hypothyroidism. These fatty acids stimulate thyroid hormone production as well as keep the gland functioning normally.

Furthermore, coconut oil promotes weight loss and reduces cholesterol levels, two common issues related to underactive thyroid.

Replace your regular cooking oil with extra-virgin coconut oil. In baking, you can use coconut oil in place of butter. You can also eat 1 to 2 tablespoons of extra-virgin coconut oil daily by adding it to your milk, tea, hot chocolate or smoothie.

Note: Do not consume more than 3 tablespoons of coconut oil a day.

3. Yogurt



Yogurt is also good for your thyroid health, due to its high vitamin D content. In fact, vitamin D deficiency is linked to Hashimoto’s disease, one of the most common causes of hypothyroidism.

A 2013 study published in Endocrine Practice reports that vitamin D has a potential role in development of Hashimoto’s disease and/or its progression to hypothyroidism.

Moreover, probiotic yogurt helps maintain the balance of “good bacteria” in the gut. Yogurt also contains significant amounts of calcium, protein and iodine that are important for thyroid as well as overall health.

Aim to eat at least 1 cup of yogurt daily, either plain topped with fresh fruits or as an ingredient in a smoothie.

4. Salmon


Salmon is one of the best fish that you can eat for your thyroid health and metabolism. It also boasts significant anti-inflammatory properties, due to its rich omega-3 fatty acid content. Numerous studies document the health benefits of salmon.

A 2010 study published in The Journal of Nutritional Biochemistry suggests that fatty acids signal thyroid cells in the liver to burn more fat.

A 2014 study published in Acta Physiologica Hungarica reports that omega-3 fatty acids could be useful as a neuro-protective agent against cognitive impairment due to hypothyroidism.

In addition, omega-3 fatty acids lower the risk of heart disease, another side effect of unmanaged hypothyroidism.

As most salmon sold in the United States is farm raised, which are contaminated with PCBS (Polychlorinated biphenyls) and mercury, it is recommended to opt for wild salmon. When buying salmon, make sure it is labeled as wild. Eat it at least twice a week.

5. Seaweed


To help your thyroid gland function properly, iodine is necessary. Iodine attaches to the amino acid tyrosine to form thyroxin, which is essential for your thyroid to function properly.

An inadequate level of iodine in the body inhibits the production of metabolism-regulating thyroid hormones.

To get your daily dose of iodine without increasing your salt intake, seaweed is one of the best options. This sea vegetable is also packed with other nutrients, including calcium, fiber, protein, phosphorus, magnesium, selenium, manganese, iron and vitamins A, B, C, E and K.

You can use seaweed in sushi, soups and salads. Seaweed snacks are also available in the market, which are great as a healthy low-fat alternative to chips.

Note: If you have autoimmune thyroid problems, avoid seaweed and other sea vegetables in excess amounts, which may worsen your condition.

6. Brown Rice

brown rice

People who have hypothyroidism often crave carbohydrates more than other types of food. This happens due to a decrease in the neurotransmitter serotonin. Carbohydrates tend to raise serotonin levels.

In addition, carbohydrates have a direct effect on thyroid function as insulin is needed for the conversion of the inactive T4 hormone into the active T3 hormone. Insulin is found to be quite low among people following a very low-carbohydrate diet.

It’s important to eat healthy carbohydrates, such as brown rice. Being rich in complex carbohydrates, brown rice helps ease digestion and promote bowel movements, alleviating common digestive problems faced by people who have hypothyroidism.

It also helps increase energy levels, while reducing and balancing blood sugar.

Note: Brown rice is rich in fiber, which can interfere with synthetic thyroid hormones. It is recommended to take your thyroid medication a couple of hours before or after eating foods rich in dietary fiber.

Cuoihoi Foods to Improve an Underactive Thyroid was last modified: September 15th, 2017 by Top10HomeRemedies
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12 thoughts on “Cuoihoi Foods to Improve an Underactive Thyroid”

  1. I dont want to take any med. I eat all the foods that you mentioned. Before, when I was eating white rice it won’t go down my throat so I changed to brown rice. I started using coconut oil before I go to sleep and when I get up in the morning…I feel good. My throat in swallowing food improved. I prefer taking herbs than prescription.

  2. Very Useful. Plz send me some tips regarding Grey hair. I got too much of Grey hair. My age is 37. How to prevent and how to do hair colour at home.

  3. Absolutely fantastic! I have had to deal with underactive thyroid since the early age of just 6, and have been on prescribed medication of Levothyroxine since I was 6. I have always tried to find out what causes my legs to swell, but nobody has given me an answer, but it’s made me feel so self concious, and I can’t even wear a skirt, or dress because I feel so embarrassed, my hair has gone from being lovely to appalling, I am constantly cold, and I am now at the age of 45, so I just feel like I don’t know what to do, or who to ask for help, but if anyone is reading this, and possibly has some valuable advice then I really would so much appreciate you getting in with me please. Thank you ☆

    1. Hi Joanne..I learn that soaking coriander seeds overnight and drinking the boiled coriander water helps…
      It’s an ancient Ayurvedic formula…
      Kindly Google to know more…

    2. TERESA 9th May 2016 . I started to feel the effects of hypothyroidism when l was thirty years old and was diagnosed correct by my G.P. and given Levothyroxine 100mg this was a starter dose . Over the years the dose varied from 100 to 125 mgs and to this day the blood tests are either to high or to low there seems to be no balance . I have been consuming peanuts as l craved protein and do not like to eat too much meat , though love fish. My hair started to thin and my skin was terribly rough also my legs began to show signs of swelling . Once again l talked to my G.P. who checked my TSH levels and told me they are normal, not satisfied with the answer l started my own research and found that the high consumption of peanuts and soy yoghurt could cause leaching of thyroxine from my body , so once again l consulted my G.P. and had a referral to to see a consultant at a university hospital. I had further tests and the tests came back normal . I mentioned my research on peanuts and soy yoghurt and the side effects caused …… sad to say they ignored this . I have since ceased to eat both peanuts and soy products and YES!! my hair has thickened and is no longer dry and stringy ,my skin is soft and lease itchy, my weight has decreased and l have much more energy . So all l can say is doctors and consultants need to do more research on thyroid problems and diet .

  4. I have an under active thyroid, but I can’t eat nuts, as I have a bad reaction to them. I also have rheumatoid arthritis, and osteoarthritis. What would you suggest I put in my diet to help. Thank you

  5. For gray hair treatment I use Henna hair color and conditioner –dye and chemical free. 100% Natural Plant Powder. Mix in a small bowl,with some water and brush on with hair dye brush from a Sally’s beauty store. Should be thick goopy texture–not runny.
    I put on every piece of hair – top knot it and take a relaxing bath for that hour.
    Very good for your hair!
    Good luck!

  6. After reading this article few months back I have been consuming table spoon of coconut oil on most days but today I read it somewhere else that it’s bad for the cholesterol because of saturated fat. Kindly clear this thing out.

    1. Coconut oil has good fats, only animal products contain bad cholesterol and fats. Watch documentaries like food matters on Netflix. also the china study is a good book about health and food.

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