Iodine Uses Benefits Deficiency and Foods

Iodine Uses, Benefits, Deficiency, Foods and Supplements

Iodine content in the body is 20 to 30 mg. Out of this Iodine body content 8 mg is found in the thyroid gland. Iodine deficiency has become one of the most common problem worldwide. The major cause of iodine deficiency is inadequate intake due to low soil concentration, with resulting low concentration in crops. The iodine content of plants grown in iodine-deficient soil may be as low as 10 micro-gram/kg, compared with 1,000 micro-gram/kg for plants grown on soils with high iodine content.

Physiological Function of Mineral Nutrient Iodine

Iodine (I) is necessary to make thyroid hormone, a regulator of energy metabolism that is vital for normal growth and development, maintenance of body temperature, and brain development. Thyroxine (T4) contains 4 iodine atoms and trilodothyronine (T3) contains 3 iodine atoms, so iodine constitutes 65% and 59% of T4 and T3, respectively.

Dietary organic iodine is converted to iodide in the gut and absorbed throughout the gastrointestinal tract. Iodide is 100% bio-available.

Causes of Deficiency of Mineral Nutrient Iodine

Decreased Intake, Impaired conversion

Health concerns due to Iodine deficiency

Goiter, Hypothyroidism Hyperthyroidism, Fibrocystic breast disease

Neurological, Developmental, reproductive disorders

Iodine deficiencies are the leading cause of preventable mental retardation worldwide. Iodine deficiency is known to affect all stages of life.

For the fetus, it can lead to abortions, stillbirth, congenital anomalies, increased perinatal mortality, endemic cretinism and deaf mutism.

In the neonate, it can cause goiter, hypothyroidism, mental retardation and increased susceptibility of the thyroid gland to nuclear radiation. Neonatal screening can prevent neurological consequences of congenital hypothyroidism in infants after birth.

In children and adolescents, iodine deficiency can lead to goiter, sub-clinical hypothyroidism, sub-clinical hyperthyroidism, impaired mental function, retarded physical development and susceptibility of the thyroid gland to nuclear radiation.

Finally, in adults, the consequences of iodine deficiency are goiter, hypothyroidism, impaired mental function, spontaneous hyperthyroidism in the elderly, iodine-induced hyperthyroidism and Increased vulnerability of the thyroid gland to nuclear radiation.

Iodine deficiency coupled with high goitrogen intake for a long time period can bring about goiter.  The combination of goitrogenic thiocyanides with selenium deficiency is a risk factor for endemic myxedematous cretinism.

Assessment of Iodine Mineral Status

Direct Markers: Urine

Functional Biomarkers: Serum T3, T4TSH, Blood spot, Thyroglobulin

Supplementation of Iodine

Children 2-12 years: 90-600 micro-gram

Adult male: 150micro-gram to 50mg

Adult female: 150micro-gram to 50mg

Buy Best or most Bio-Available or Active form of Iodine Supplement

Potassium Iodide and elemental Iodine

Food source of Iodine

Seaweed, shellfish, marine fish, iodized salts

AUTHOR Anupama Singh

I am the founder of Vitsupp and have a bachelors in engineering. My family suffers from every lifestyle disease you can think of. Heart disease, obesity, high blood pressure, diabetes, hypothyroidism . . you name it and some one in my family has it. Trying to save myself and my family from our genetic disposition, I learnt much about nutrition, exercise and lifestyle diseases. Certificate in "Diabetes – The Essential Facts" by University of Copenhagen

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