Iodine is essential for human health, it is
essential element in the human diet and a deficiency can lead to a number of health outcomes collectively termed iodine deficiency disorders (IDD). The geochemistry of iodine is dominated by its volatility with volatilisation of organo-iodine compounds and elemental iodine from biological and non-biological sources in the oceans being a major component of its global cycle. As a result of the dominant oceanic source, iodine is strongly enriched in near-coastal soils, however, the major zone of marine influence generally stretches to only 50–80 km inland and terrestrial sources of volatilised iodine, from wetlands, soils and plants are also an important aspect of its global geochemical cycle. Iodine in soils is strongly bound with transfer factors from soil to plants being generally small and as a consequence there is only limited uptake of iodine through the plant root system. It is likely that uptake of atmospheric iodine by the aerial parts of plants is an essential process and, along with iodine deposited on plant surfaces, is a major source for grazing animals. Human intake of iodine is mainly from food with some populations also obtaining appreciable quantities of iodine from drinking water. Plant-derived dietary iodine is generally insufficient as evidenced from the low dietary iodine of strict vegan diets. Seafood provides major iodine-rich dietary items but other inputs are mainly from adventitious sources, such as the use of iodised salt and from dairy produce, which is a rich source mainly due to cattle-feed being fortified with iodine, and to the use of iodine-containing sterilants in the dairy industry. While the distribution and geochemistry of iodine are reflected in the global distribution of IDD, the recent upsurge of IDD in developed countries would seem to reflect changes in diet.so why iodine is essential?
The body needs iodine to make thyroid hormones that control the body's metabolism and many other important functions. The body also requires thyroid hormones for proper development of bone and brain during pregnancy and infancy. In addition to these, iodine strengthen immune system of the body and flushes out toxins, helps maintain optimum energy levels, contributes to healthy skin and helps in preventing cancer.
http://www.iccidd.org/cm_data/2011_Zimmermann_The_role_of_iodine_in_human_growth_and_development_SCDB.pdf
http://www.ijem.in/temp/IndianJEndocrMetab14113-3677665_101256.pdf
Certainly the body needs iodine to grow properly because it is necessary for the work of thyroid hormones T3 and T4 and these hormones play a large role of growth through control and regulation of various metabolic processes
Dear friends ,iodine is still essential for growth and function of organs of human .see attached file
Please take a look at this useful RG link.
Article Iodine as Essential Nutrient during the First 1000 Days of Life
The natural source of iodine would be either the consumption of seaweeds like nori and the consumption of glandular foods for non vegetarians or fish and mollusks The halogens such as chloride, fluoride and bromide would be antagonistic to iodide and proper thyroid function. The elimination of chlorine in water by aeration and the non use of fluoride and bromide would be recommendable. In many countries salt has iodine added a caveat is that over consumption of salt is an issue in may locales. High salt consumption can aggravate high blood pressure a condition which is becoming common in many areas.
Dear Tareq Alasadi
Iodine is important in building thyroid hormones
Thyroid hormones are important in food metabolism and proper growth
And it has importance in building the bone and brain of the fetus
Iodine is an essential trace element for normal growth and development. It is used to make tetraiodothyronine (T4, thyroxine) and triiodothyronine (T3), which are thyroid hormones necessary for the normal growth and development of the brain and nervous system and the maintenance of body heat and energy.
Iodine is an essential trace element for human growth and development and is required for the synthesis of thyroid hormones. Low levels of thyroid hormones result in hypothyroidism which could cause serious functional and developmental disorders collectively called iodine deficiency disorders (IDDs). https://www.researchgate.net/publication/51533818_The_role_of_iodine_in_human_growth_and_development
The body needs iodine to produce thyroid hormones that help regulate growth, metabolism, heart rate and a host of other vital functions. A lack of iodine can hinder production of that hormone and lead to hypothyroidism.
https://healthblog.uofmhealth.org/childrens-health/pass-salt-iodine-crucial-for-kids-diets
Iodine is a mineral found in some foods. The body needs iodine to make thyroid hormones. These hormones control the body's metabolism and many other important functions. The body also needs thyroid hormones for proper bone and brain development during pregnancy and infancy. https://ods.od.nih.gov/factsheets/Iodine-Consumer/
Iodine is an essential component of the hormones produced by the thyroid gland. Thyroid hormones, and therefore iodine, are essential for mammalian life. Iodine deficiency is a major public health problem; globally, it is estimated that two billion individuals have an insufficient iodine intake. Although goiter is the most visible sequelae of iodine deficiency, the major impact of hypothyroidism due to iodine deficiency is impaired neurodevelopment, particularly early in life. In the fetal brain, inadequate thyroid hormone impairs myelination, cell migration, differentiation and maturation. Moderate-to-severe iodine deficiency during pregnancy increases rates of spontaneous abortion, reduces birth weight, and increases infant mortality. Offspring of deficient mothers are at high risk for cognitive disability, with cretinism being the most severe manifestation. It remains unclear if development of the offspring is affected by mild maternal iodine deficiency. Moderate-to-severe iodine deficiency during childhood reduces somatic growth. Correction of mild-to-moderate iodine deficiency in primary school aged children improves cognitive and motor function. Iodine prophylaxis of deficient populations with periodic monitoring is an extremely cost effective approach to reduce the substantial adverse effects of iodine deficiency throughout the life cycle. https://pubmed.ncbi.nlm.nih.gov/21802524/
Tareq Abdhilkadhim Naser Alasadi
Kids on restrictive diets (or who are extremely picky eaters) could be at risk for low iodine levels that can hinder growth and bodily function.
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