How much iodine does a person normally need? Are additional amounts of iodine safe in normal adults?
Answer The average daily requirement of an adult is 150 micrograms a day. The average requirement of iodine in different age groups is depicted in Table II. Iodine has a relatively wide margin of safety. Acute and chronic toxicity studies with sodium iodate have been carried out. Results of these long-term experiments of administration to man and to animal of doses comparable to those which would be used in prophylaxis programme have failed to produce any toxic signs.
