What is Iodine? Importance of Iodine in diet. Foods rich in Iodine.

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Iodine and the Thyroid Hormone Iodine Toxicity
Toxicity due to excessive consumption of Iodine is rarely ever seen as people can tolerate almost 1000 mgs (1 gm) without undesirable effects. Even in parts of Japan where diets include large amounts of fish with seaweed, still only total up to 50-80mg. However should somebody take in excess of 1 gm, symptoms will include burning of the mouth, throat, and stomach, fever, nausea, vomiting, diarrhea, a weak pulse, or even coma.

Properly iodized salt will contribute only around 300 mcg of iodine, so the concern of consuming excess iodine should not stop people from taking Iodized salt.

Goitrogens
These are substances that interfere with the absorption or utilization of iodine or the production of thyroid hormones. Cassava from the Congo belt has a compound that is metabolized to THIOCYANATE and blocks thyroid glands intake of Iodine. Other foods include

Cruciferous vegetables for example, broccoli, brussel sprouts, cabbage, cauliflower, kale, mustard, turnips and radishes
Millet
Peaches
Pine nuts
Peanuts
Soybean and soy products, including tofu
Spinach
Strawberries

Cooking de-activates goitrogens in the cruciferous vegetables to some extent but even otherwise the amount of consumption of any of the above mentioned products is not large enough to cause thyroid problems, except soy -when people consume excess of soy from dawn to dusk. Moderate consumption helps get the value of other nutrients; phytofactors or anti oxidants that in fact help us lead healthier lives.

It is best if people with existing condition of hypothyroidism consult their doctor about including these foods.

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User Comments

01 July, 2014 | sri | Reply

Hi Madam,
I am suffering with hypothyrodism. having 25 mg Electroxin daily.
what foods should i eat?I am taking less sodium salt.Is it good?
Please reply.
Thanks.

01 April, 2013 | leena | Reply

though i am vegetaian can i take seecod capsule instead of fish as i am hypothyriod patient

20 September, 2011 | Vijayalakshmi Iyengar | Reply

Even if people eat a lot of fish and other sources of natural Iodine they can still used iodized salt without any worry as it does not add more than 300 mcg iodine daily to the diet. The fear of consuming excess iodine should not lead to stop use of iodized salt. Iodine excess is undesirable, but its consequences are not nearly so severe as those of iodine deficiency, because the latter affects human development and can produce permanent brain damage. Anyways most people can tolerate at least 1 mg (1000 mcg) of iodine daily without adverse effects, unless they have an auto immune problem.

12 August, 2011 | Prakruthi Shah | Reply

When my sister was pregnant she was diagnosed as a hypothyroid patient and put onto medication to correct it and have a normal pregnancy. Now her little son needs to take a little pill of thyroxin every day.Will this be needed for life? Will it affect his mental and physical growth?

13 August, 2011 | Poonam | Reply

Hello Prakruthi,
We understand your concern for your young nephew.
Some babies are born with a condition called congenital hypothyroidism. Was that the diagnosis for your nephew? Usually, if the medication the child receives is in the right quantities needed by the body the child should grow normally.
Your sister and her husband must discuss these issues with the doctor and also read a lot about the condition from reliable sites on the internet to be well informed about his condition and keep in touch with any new developments in the field.

12 August, 2011 | vishwa | Reply

We eat sea food regularly in our home especially seer, haddock and pomfret. Do we need to use iodised salt in our cooking?

13 August, 2011 | Poonam | Reply

Hello Vishwa,
If you are getting an average of 150ug of iodine per day through your diet, you are meeting your needs for the nutrient. If not, you will need to consume some iodised salt to cover the deficit.

31 October, 2011 | Vishwa | Reply

Hello madam Poonam,I want to clarify a couple of things.How do I know I am getting 150ug of Iodine everyday in my diet? We are fish eaters but we eat only once or twice a week. My wife is a veg she does not eat at all. Secondly we have no choice but to use iodised salt as all salt sold in the market is iodised salt.
However as somebody has commented if we take iodised salt along with naturally rich iodine foods it should not cause toxicity as we can tolerate upto 1000ug of iodine and iodised salt adds 300 ug per day on the high side.This is a consolation.

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Tags: Anemia, Diet, General health, Healthy Lifestyle, Iodine, Obesity / Weight Loss, Pregnancy / Lactation, Screening

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