Iodine (iodide) may help to address the following conditions:
Iodine is necessary to the proper development of a growing body.
Iodine promotes healthier hair, nails, skin, and teeth.
thyroid disorders
Iodine is very important to thyroid health. Iodine deficiency can result in cretinism, goiter, or hyper- or hypothyroidism. However, iodine intake will not reverse these problems; it can only prevent them.
brain fog
Iodine deficiency in adults is linked to cloudy thinking, weight gain, depression, and mental deficiency. Infants whose diets are deficient in iodine exhibit diminished intellectual capacity and learning disabilities."
developmental disorders
Iodine deficiency in children is linked to decreased learning ability and motivation to achieve, impaired eye coordination, and lower IQ scores. Sufficient dietary iodine can help prevent these problems, among others, although it is not currently known whether supplementation can reverse the problems.
Iodine deficiency can result in depressed mood, particularly when the condition is extreme and associated with hypothyroidism.
Iodine supplementation may relieve endometriosis. It does so by helping to convert the cancer-promoting estrogen, estradiol, into the safer estrogen, estriol. Doses required are potentially toxic, and should be monitored by a doctor.
Because pregnancy creates additional requirements for iodine, even slightly iodine-deficient mothers may develop goiter during pregnancy, with detrimental effects to the fetus, including cretinism. In the U.S., urinary iodine concentrations have been reduced by 50% since the 1970s, possibly due to dietary salt restriction. Women should take in an average 150 g of iodine before becoming pregnant to avoid possible complications.
Iodine deficiency causes thyroid and adrenal disorders related to fatigue. For iodine-deficient individuals, supplementation can correct fatigue while improving brain function and mood.
Low iodine levels during pregnancy affect fetal brain development. Effects range from mild deficits in intelligence or coordination to extreme retardation and cretinism. Currently, the RDA for pregnant women is 175 g.
fibrocystic breast disease
Women with fibrocystic breast disease often experience relief from supplemental iodine in the form of Ioderol or Lugol's solution. Oversupplementation with iodine can adversely affect thyroid function.
Low iodine intake is associated with increased cancer risk. Researchers believe this may be related to iodine's ability to convert a cancer-promoting form of estrogen to a safer form. Iodine supplements are particularly effective in reducing breast cancer risk in women receiving treatment for hypothyroidism.
immune disorders
Iodine deficiency or excess can result in hypothyroidism and impaired immune response.
Iodine deficiency in adults can result in lethargy, cloudy thinking, and depressed mood.
nervous system disorders
Infants born to iodine deficient mothers are at risk for severe retardation. Children whose diets are low in iodine are likely to develop learning disabilities. An article in the British journal Lancet summarized: "Women who suffer from iodine deficiency and hypothyroidism during pregnancy risk causing neurologic damage in their offspring."
A medical doctor who studied Canadian polio epidemics concluded that polio was related to iodine deficiency, and proceeded to both cure and prevent polio with small doses of iodine.
skin disorders
Keloid scars are less likely to form when iodine intake and tissue levels are adequate. Iodine also helps to reduce existing scars when applied consistently over a period of time. Iodine applied to a scab helps to organize total repair of skin tissue and reduce scarring. Topical application of Lugol's solution has been credited with returning pre-cancerous skin lesions to normal.
SIDS (sudden infant death syndrome)
In the United States, SIDS is twice as common in states that previously suffered from goiter before iodine was added to table salt. Some researchers have noted thyroid gland abnormalities in SIDS victims that suggest iodine deficiency may be associated with these infant deaths.
uterine fibroids
Iodine helps to convert estrogen from its more dangerous form, estradiol, to the safer form, estriol, simultaneously providing relief from uterine fibroids. Because iodine excess can precipitate thyroid problems, thyroid function should be monitored throughout treatment.
Iodine deficiency can result in depression and weight gain.
keloid scars
Keloid scars are less likely to form when iodine intake and tissue levels are adequate. Iodine also helps to reduce existing scars when applied consistently over a period of time.

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