 In iodine deficient areas where iodized salt coverage is poor, WHO, UNICEF and the International Council for the Control of Iodine Deficiency Disorders ICCIDD recommend infants between 7 and 24 months be given a daily dose of 90 μg iodine potassium iodate or an annual dose of 200 mg iodine iodised oil. The scientific evidence for this recommendation is weak, however, and it is uncertain under what conditions the two prevention strategies may be applied and which of the two is best when. 