Has the UK really become iodine sufficient?

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Professor Margaret Rayman and Dr Sarah Bath, on behalf of the UK iodine group, have recently reviewed the evidence that classifies the UK as iodine-sufficient. The Iodine Global Network maps now show the UK as being an iodine-sufficient country on the basis of school-aged children, whereas the previous map indicated mild iodine deficiency in the UK. The difference is likely explained by the fact that the latest estimate is based on data from the National Diet and Nutrition Survey, which includes boys and girls 4-18 years old, whereas the previous estimate was based on teenage schoolgirls aged 14-15 years. The full comment is published in the Lancet Diabetes and Endocrinology.