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goitre.jpg Izzeldin Hussein, member of the Board of the International Council for the Control of Iodine Deficiency on his work in Sudan, gave a lecture recently at LondonMet University, Holloway, London. We will be putting his Powerpoint presentation on this website shortly. Although we are supposed to know how to prevent iodine deficiency, and it is the most certain way of retarding the brain of the child, there are still 1.6 Billion people at risk today.

It is interesting especially as iodine deficiency is being seen again in the UK and Europe. It is likely that intensive agriculture is contributing to the depletion of soils.

A lively discussion followed after the revelation that, in the Red Sea areas of Sudan, aid initiatives can in fact over-supplement diet by Iodising everything in the food, from salt to cooking oil. Surprisingly, few of the local population include fish in their diet. Excess Iodine can produce life-threatening effects; the beneficial dosage is very low indeed (one teaspoonful is a lifetime dose but needs to be administered every day) and having a narrow range, which differs during the course of life. Mothers-to-be need a higher dosage than other adults, starting from the 3rd month of pregnancy for maximum protection of the fetal brain.

The external sign of Iodine Deficiency, an enlarged goitre, is obvious but not the way that needs are measured, which is by urine tests. Debate continues as to the difference between free Iodine or rather its salts, and Iodine naturally bound in food such as fish.



Professor Richard Mithen of the National Food Research Institute, is quoted by Andrew Purvis (Food Magazine 15th May) as stating that my evidence on the decline in trace elements in food is

Read more: Decline in trace elements in food "Not anecdotal"

David Thomas continues the debate with Bridget McKevith from the British Nutrition Foundation and Peter Melchett from the Soil Association on the BBC Radio 4 Food Programme (Sunday 12 March 2006 repeated Monday 13 March 2006 at 4pm GMT. You can listen to the programme on-line soon.

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