An iodine self test is a home test for iodine deficiency performed by painting a patch of orange iodine tincture on the skin and checking the color the next day, as instructed by Dr. David Williams. If the patch is faded... More » Health Diagnostics & Imaging

The most common method for testing for iodine deficiency is to take urine samples, as the body releases iodine in the urine. Iodine deficiency is not tested in individuals; it is tested across populations using urine sam... More » Health Diagnostics & Imaging

Iodine is known as an indicator because it changes color in the presence of starch and several other molecules. Iodine can also be used to track iodide and iodine in its elemental form. More » Science Chemistry Organic Chemistry
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