One way to assess a person's intake or level of iodine is by testing the iodine concentration in their urine. This method is used extensively in research to evaluate the connection between various diseases and the levels of iodine in individuals and various populations.Even though the urine iodine test is considered reliable it does measure only the out-flow of iodine from foods ingested in the previous 48 hours. Yet it still remains useful for investigation and is the only means of iodine mea... more