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There are several methods used by medical practitioners to measure iodine, including a blood test, iodine loading test, and Hair Tissue Mineral Analysis (HTMA) test.
Founder of NoshandFlourish.com and HTMA practitioner, Stephanie Mace, has experience treating patients with iodine therapy. According to Mace, HTMA can give medical practitioners a clear picture of what is going on in the cell. HTMA tests for 37 minerals and various toxic elements. Although it doesn't individually test for iodine, Mace says in her practice there are simple ways to determine iodine levels using HTMA.
Mace looks at sodium, selenium, potassium, and lithium levels in HTMA, which she says are reliable indicators of the levels of iodine in the tissues. The HTMA test can even indicate the presence of Hashimoto's Disorder. Insufficient iodine in the cells cause thyroid cells to become damaged. As a result, Hashimoto's disease may develop.
Mace says many of her patients do both the 24-hour loading test with bromine and an HTMA test. The 24-hour Iodine Loading test with bromine can be used to determine whole-body iodine sufficiency. Since it is possible to show a healthy amount of iodine on the 24-hour loading test and still have symptoms of iodine deficiency, the HTMA test may help reveal iodine deficiency.