Iodine can be described as the heaviest halogen in the normally present halogen, which is in particular present in Group 17 (VIIA) of the Periodic Table of the Elements. The Periodic Table of Elements contains a chart of how compounds or elements are related to each other. The chemical aspect of iodine is the same as light halogen placed at elevated, such as chlorine, bromine, and fluorine. However, its physical appearance tends to be distinctive as it reflects elements of steel gray that are transformed into attractive purple vapor at incineration.
Iodine (I) is a nonmetallic trace element necessary for human to synthesize thyroid hormone. Iodine deficiency is an important health problem in many parts of the world. Most of the Earth's iodine is present in the sea in the form of iodide ions (I -), and the iodine content in the soil varies from region to region. The older the exposed soil surface, the higher the possibility that iodine is eroded. Mountains in the Himalayas, Atlas Mountains, Andes Mountain Range, Alps and the like, flooded valleys such as India's Ganges Plain, many inland regions such as Central and Africa, Central and Eastern Europe, and the Midwestern world of North America, and the iodine content Is one of the lowest regions (1)
Iodine is necessary for normal growth and development of the brain and nervous system. Since iodine is derived from soil, the content of iodine in food depends on the iodine content of the soil. Soils with low iodine content are mainly distributed in highlands, mountainous areas, and floods. Fish and other foods from the ocean (sea salt etc.) get rich in iodine from seawater, and in many cases it is rich in iodine. Acute hunger suddenly occurs, and it may be life-threatening if you do not treat immediately. This usually occurs due to an emergency such as a conflict or a natural disaster. Meanwhile, dramatic images of hunger are often highlighted on the TV screen. However, acute starvation accounts for only 8% of the global starvation problem.
Iodine and iodine salts in foods exist in several chemical forms including sodium and potassium salts, inorganic iodine (I 2), iodate and iodine, and reduced forms of iodine. Since iodine rarely appears as salt rather than element, it is called iodide rather than iodine. Iodide is rapidly and almost completely absorbed into the stomach and duodenum. Iodic acid decreases in the digestive tract and is absorbed as iodide. When iodide enters the circulation, the thyroid gland concentrates thyroid hormone synthesis to an appropriate amount and the majority of the remaining amount is excreted in the urine. Healthy adults with adequate iodine contain about 15 to 20 mg of iodine, 70 to 80% of which are contained in the thyroid gland.