UK Childrens IQ’s are being lowered by Iodine deficiency

22 May 2013 Last updated at 07:53

Iodine deficiency ‘may lower UK children’s IQ’

By James Gallagher Health and science reporter, BBC News

Mild iodine deficiency during pregnancy could be dimming the intellect of some babies born in the UK, say researchers.

Their study of 1,000 families, published in the Lancet, showed lower IQs and reading scores in primary school pupils whose mother had had too little iodine while pregnant.

Academics advise women of child-bearing age to maintain iodine in their diets by eating dairy products and fish.

Women were warned not to take seaweed pills, as they contain too much iodine.

Iodine is essential for the development of the brain as it is needed to build some of the body’s hormones. A severe deficiency is the leading cause of preventable brain damage in the world.

It was mainly thought of as a problem in developing countries, yet previous studies have also suggested that some women in the UK are mildly deficient. The impact of low-level deficiency was, however, previously unknown.

Researchers at Surrey and Bristol Universities looked at iodine levels in urine samples taken from pregnant women in south-west England.

Dr Sarah Bath: “Good sources of iodine are fish, milk and dairy products”

The study showed that iodine deficiency was common – affecting two-thirds of women.

Their children went on to have slightly lower IQs at the age of eight and worse reading ability aged nine.

Dr Sarah Bath told the BBC: “We saw a three-point IQ difference between children who were born to mothers with low iodine in early pregnancy and children who were born to mothers above the cut-off.”

The researchers said this “may prevent a child reaching their full potential” and was an “important public health issue”.

Their advice, published on the British Dietetic Association website, recommends that pregnant and breastfeeding women need 250 micrograms per day and other adults need 150mcg.

Prof Margaret Rayman said: “Our advice is to make sure they have enough iodine intake, and take additional iodine in safely, probably from food – dairy products, fish.”

But she pointed out that iodine levels in organic milk are 42% lower than in regular milk, adding that if pregnant women are drinking organic milk, “they need to drink more of it”.

Dr Bath warned against using kelp or seaweed supplements, as they are packed with so much iodine it could cause problems.

A large number of pregnancies are unplanned, so the advice is to all women of child-bearing age.

It had been thought that the UK had dealt with its iodine problem decades ago by “lucky accident”. Changes to dairy farming meant cows’ milk contained more iodine and at the same time the government was encouraging people to drink more milk.

Other countries – including the US, Denmark and the Netherlands – added iodine to salt so that bread and processed foods became a major source of iodine.

However, the researchers argue it is too soon for the UK to consider a similar measure, as iodine deficiency across the country has yet to be assessed.

Dr Mark Vanderpump, a consultant physician at the Royal Free Hampstead NHS Trust, argues in favour of adding iodine to salt.

However, he said this would provoke fierce debate similar to arguments about adding fluoride to water in order to protect teeth.

In the meantime, he warned pregnant women against suddenly starting to take supplements.

“If you take a supplement during pregnancy, the thyroid gets stunned and goes down. Taking a supplement during pregnancy may not be the best thing to do.”

A Department of Health representative said a healthy balanced diet should be enough for women but: “We keep track of emerging research, such as today’s report.

“The Scientific Advisory Committee on Nutrition is currently considering the issue of iodine deficiency in the UK. There are currently no plans for fortification of salt with iodine.”

One comment

  • theunhivedmind

    It is well known that most people are suffering from iodine deficiency and you need far more than what is claimed. Iodine does not only go to the thyroid as claimed, iodine is used by most parts of the body and is a most vital substance which the body needs to function correctly and fight off disease and infection.

    Ask yourself why many women who have had breast cancer and now have thyroid problems from the allopathic treatments seem to outlive those who have not thyroid issues from the treatments. The answer is the iodine which the thyroid sufferers have to intake daily as part of their Thyroxine drug. Breast cancer is highly connected with a lack of iodine which then makes you more susceptible to other factors such as the mouse mammory virus and radiation (Chernobyl). The breasts need substantial amounts of iodine similar to the thyroid. The breasts then have to fight with the thyroid in order to get some iodine. The thyroid will always be given priority since it is more important and controls the timing of your body.

    I recommend people look into taking Iodum the homoeopathic form of iodine once in a while. Homoeopathic medicines are not really for preventative health but you can use some of these for this purpose unless they are sarcodes and nosodes. If you were going to do this as a preventative treatment then you would be looking at a 30c dosage or a 200c. If you show a proving of the remedy then you will have to lower the dosage down until a proving is not seen. This may mean you might be in need of a LM1 dosage instead. If no proving from the LM1 dosage is found then you can take this for a couple of days or so.

    -= The Unhived Mind

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