Iodine and Thyroid

When do we need Iodine rich diet comprising of iodine rich foods? Obviously, it is when we are likely to face iodine deficiency. There will be many health issues due to iodine deficiency. If you read the overview of the thyroid gland, you would observe that the thyroid gland is the only organ in our body which takes up iodine from the food. What is iodine? Iodine is a chemical element with the atomic number 53. Also, Iodine has the ability to kill bacteria, fungus, and microorganisms too. Iodine and thyroid are essential in the preparation of thyroid hormones. 

For your swift recovery from hypothyroidism which is caused due to the low production of thyroid hormones, you can try thyroid hormone replacement therapy. thyroid hormone is actually two iodine-containing hormones called t3 and t4. So, Thyroid disorders can be treated with a thyroid and iodine supplements or synthetic thyroid hormone levothyroxine. (which is sold as selenium and Synthroid, Levothroid etc.) But if you just know the harmful Synthroid side effects, automatically your way of approach for thyroid treatment might change. Iodine and thyroid function are interlinked. Severe signs of iodine deficiency can cause hypothyroidism. Sometimes, it may also result in stunted and impaired growth. 

Iodine and Thyroid

[Must Read] Approved Hypothyroidism Diet and Foods for Hypothyroidism

Thyroid hormone production requires the presence of both iodine and calcium. The iodine mineral and the amino acid tyrosine combine in the process of thyroid hormones such as T3 and T4 manufacture in our body. If you discern the structure & chemical formula of Thyroid hormone triiodothyronine and thyroxine, there will 3 and 4 molecules of Iodine for thyroid respectively. Apart from that iodine and thyroid is also helpful for growth and development of our cells and muscles. Also used in the makes of proteins from amino acids. 

Iodine Deficiency Symptoms

Iodine deficiency and thyroid gland function are intertwined and integrated. This relation between iodine and thyroid has been known since the twentieth century. Iodine deficiency can cause brain damage and fogs the brain. knowing foods high in iodine or foods with iodine is enough if you know the symptoms of iodine deficiency as well. So, taking a diet that works with iodine-rich foods or foods with iodine sources is important nonetheless. However, If a low amount of iodine is taken into our body from the food sources of iodine than the recommended daily intake of iodine, the following symptoms develop.

Read below to know the natural sources of iodine in food and also the symptoms of iodine deficiency caused due to the thyroid hormone function changes. If you observe closely you will find that the iodine deficiency symptoms and hypothyrodism symptoms are alike. So, we can safely come to a conclusion that there might be various iodine uses but the main one is thyroid iodine treatment. 

  • Reduced rate of thyroid hormone synthesis 
  • Swelling in the Neck. (Goiter is one of the most common symptoms arising due to the iodine deficiency and the lack of iodine thyroid.)
  • Unexpected Weight Gain
  • Fatigue and Weakness
  • Hair loss and thinning of hair
  • Dry, Flaky Skin
  • Sensitivity to cold (Defective Malfunction of thyroid heat regulation)
  • Fluctuations in Heart Rate 
  • Iodine and heart palpitations
  • Trouble concentrating and also memory loss

[Related Read] Detailed Explanation of Symptoms of Hypothyroidism

Suitable Iodine Amount According to Age

The amount of iodine and thyroid requirement changes for every person to person. It also changes with the age of the person in question accordingly. The required amounts of iodine for it to show some benefits of iodine and thyroid on a daily basis are given below. Likewise, Too much iodine is also not advisable as it may direct to hyperthyroidism. The recommended levels of iodine in the US are 150mcg per day. 

Note: The values mentioned are the upper limit for intake of iodine.

  • 1-3 years: 200 mcg
  • 4-8 years: 300 mcg
  • 9-13 years: 600 mcg
  • 14-18 years: 900 mcg
  • 19 years and older: 1,100 mcg
  • Women 14-18 years: 900 mcg
  • women 19 years and older: 1,100 mcg

Iodine Rich Foods: Hypothyroid Nutrition for Iodine and Thyroid

The following are the foods high in iodine. There are various iodine benefits which look after our day to day routine. This iodine deficiency can be substituted with iodine supplements for thyroid as a part of iodine treatment for thyroid. Fair intake of iodine foods or foods rich in iodine is imperative for proper thyroxine t4 and t3 thyroid production. When the results are shown to be negative for iodine deficiency test, then it is high time that you start the foods that contain iodine in your diet. If the thyroid gland is working properly without any thyroid deficiency, only then we can be safe. As the regulation of metabolic rate, detoxification, and immunity are dependent on the thyroxine function which is in turn based on the iodine function.

Better to use iodine rich foods than the underactive thyroid iodine supplements because of the side effects of iodine supplementation. The below-mentioned food with iodine or iodine-rich foods is helpful to solve the problem.

1. Eggs

One serving or one hard-boiled Egg contains 12- 20mcg of iodine. This is just the same as 15% of 150mcg, the required white iodine level per day. 

2. Seaweed

The seaweed iodine is a good to go option and the best iodine supplement if you can find a good quality seaweed. It also prevents the low iodine symptoms. It contains the iodine for thyroid in abundance. For instance, in a quarter serving, not even a whole serving, it contains a whopping 4500mcg. This quantity is 3000% more than the daily recommended value. so, make sure the quantity or portion you take is less.

3. Salt

Iodine in Salt deficiency can also be a cause of hypothyroidism. this can easily be treated with the iodine salt. Limit the salt but not avoid it. Excess of salt lads o high blood pressure whereas the other end of the extreme results in hypothyroidism. Just one gram of salt is filled with 77mcg of element iodine which is more than 40% of 150.

4. Seafood

100 gms of Lobster contains 100mcg of iodine i.e, approximately around 70% of 150In addition to the lobster, The other seafood is tuna. Yes, we can find iodine in tuna too. The cod nutrition facts are hair-raising an astonishing as well. The cod which is a type of sea fish with soft flesh contains a low amount of calories and is high in iodine content. It is one of the sources of iodine foods. The cod liver oil is also used in the chemical manufacture of iodine and thyroid supplements.

5. Dairy Products

In the American diets, dairy-related products are the crucial thyroid support diet. A cup of yogurt can help you meet the requirements of iodine. It is because it contains around 154mcg of iodine. More than enough, huh!

6. Baked Potato

The baked potato is one of the pivotal dietary sources of iodine. It provides 62mcg of Iodine which approx to 40% of 150.

Visit the My Thyroid Problems website for an intriguing and fascinating approach to the thyroid gland and thyroid problems. You can find the whole lot information about the thyroid related queries. In case if we miss a pint please share with us. This helps others to know about it as well. 


Word Meaning
TSH Thyroid Stimulating Hormone
Triiodothyronine T3 hormone produced by the Thyroid gland
Hashimoto’s thyroiditis Auto-immune disorder of the thyroid gland.
Thyroid Hormones T3 T4, and Calcitonin
Thyroxine T4 hormone
mcg micrograms (10-6 gms)

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