Other possible factors include subclinical infections, gluten intolerance, mercury and food allergies. Studies have shown that people who are iodine deficient have an increased incidence of antithyroid antibodies.
Fatigue — iodine deficiency may lead to an abnormal pituitary-adrenal function in addition to low thyroid function. Poor Digestion — many people exhibit impaired production of stomach acid as they age which may be as a result of iodine deficiency as iodine promotes stomach acidity. Iodine is one of a group of similar elements known as halogens also including bromine, chlorine and fluorine. Because they are all of a similar shape, they compete with iodine for binding in the body, particularly the thyroid gland.
Unfortunately the other elements are toxic to the body and worsen an iodine deficient problem. They can all therefore cause hypothyroidism. Fluoride is added to many water supplies, toothpaste and some common medications and causes more harm than good.
The benefit of fluoride to teeth is now being questioned while it has been linked to behavioural disorders, hypothyroidism, hip fractures, bone cancer and kidney damage. Chlorine is added to drinking water and has been linked to heart disease and cancer.
Most of us are deficient in iodine and in a constant state of toxicity from the other halogens. The good news is that if iodine is present in sufficient amounts, the other halogens cannot affect the thyroid and are excreted from the body. Iodine has also been shown to increase the secretion of other toxic heavy metals such as mercury and lead. It appears that iodine deficiency is a risk factor for both breast cancer and fibrocystic breast disease.
Fibrocystic disease often reverses with sufficient iodine replacement. Iodine is also very effective at eliminating ovarian cysts. Sometimes a goiter develops as a direct response to iodine deficiency. Your doctor may recommend a special type of iodine called radioactive iodine to treat an overactive thyroid gland.
Also called radioiodine, this medication is taken by mouth. The risk with radioactive iodine is that it can destroy too many thyroid cells. This can decrease the amount of hormone production, leading to hypothyroidism. For this reason, radioactive iodine is usually only recommended after anti-thyroid drugs have failed. Radioactive iodine is not the same thing as iodine supplements. You should never take iodine supplements for hyperthyroidism.
Radioiodine may also be a possible treatment option for thyroid cancer. It works in much the same way as hyperthyroid treatment. When you take radioactive iodine orally, the medication destroys thyroid cells, including cancerous ones.
It may be used as a treatment following thyroid surgery to make sure all cancerous cells have been removed from the body. According to the American Cancer Society , radioactive iodine treatments significantly improve the chances of survival for people with thyroid cancer.
You need more iodine in pregnancy. The recommended daily intake of iodine during pregnancy is mcg. By comparison, the recommended amount in non-pregnant adults is mcg a day. The recommended daily amount of iodine while nursing is mcg.
The same neurological benefits of iodine during pregnancy may extend to healthy brain function during childhood. This also includes a reduced risk of intellectual disability. It is likely your child gets all the iodine they need through their diet, but if you have any questions about their iodine intake, talk to their pediatrician.
As with brain development, iodine during pregnancy is associated with a healthy birth weight. One study of pregnant women with goiters found that mg of iodine taken daily for six to eight weeks was helpful in correcting goiters related to iodine deficiency. In turn, there was an overall improvement in birth weight in newborns. In fact, taking iodine unnecessarily can cause health issues.
Do not double doses. Store the medicine in a closed container at room temperature, away from heat, moisture, and direct light. Keep from freezing. All rights reserved. Information is for End User's use only and may not be sold, redistributed or otherwise used for commercial purposes. Mayo Clinic does not endorse companies or products.
Advertising revenue supports our not-for-profit mission. Any use of this site constitutes your agreement to the Terms and Conditions and Privacy Policy linked below. Page last reviewed: 03 August Next review due: 03 August Good sources of iodine Good food sources of iodine include: sea fish shellfish Iodine can also be found in plant foods, such as cereals and grains, but the levels vary depending on the amount of iodine in the soil where the plants are grown.
How much iodine do I need? Most people should be able to get all the iodine they need by eating a varied and balanced diet.
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