It seems that optimizing selenium intake provides powerful protection against autoimmune thyroid disease, and provides tolerance of a wide range
of iodine intakes.
Relations between various measures
of iodine intake and thyroid volume, thyroid nodularity, and serum thyroglobulin.
In individuals with anti-thyroid peroxidase (TPO) or anti-thyroglobulin (TG) antibodies, the incidence of elevated TSH increased with greater levels
of iodine intake (18).
The amounts
of iodine intake in Kobe and Hotaka were less than those in Nishihara or Yamagata, but TGAb and / or TPOAb positivity was about the same in Nishihara, Yamagata, Kobe, and Hotaka.
Based on the reported values in seaweed, some have claimed levels of 12 mg (12,000 mcg) in Japanese diets, although a published analysis
of iodine intake in Japan found a range of 45 - 1921 mcg per day (J Nutr Sci Vitaminol (Tokyo).
Within one week
of iodine intake (5 mg tincture of iodine per day added to liquids) the bleeding and obstruction stopped, enabling me to have an external ejaculation which I hadn't had in several years.
These scientists suggested that lowered rates
of iodine intake could be traced to dietary changes.
Excess iodine intake in the mother may block thyroid function in the fetus, leading to hypothyroidism and goitre, and is associated with poorer mental and psychomotor development or behaviour problems in children.22 56 64 However, the risk for adverse effects of iodine supplementation is higher in cases of preconception ID due to sudden increase
of iodine intake, and should therefore not be the case in Sweden where the normal population is iodine sufficient.65
Not exact matches
As your baby's
intake of breastmilk or formula decreases, the need to consider
iodine supplementation increases.
The Vegan Society markets a vitamin and mineral supplement called VEG 1, which is designed to provide vegans with reliables
intakes of vitamins B12 and D,
iodine and selenium.
As the use
of iodised salt has also declined since that time,
intakes of iodine have fallen in both Australia and New Zealand (Eastman 1999, Gunton et al 1999, Hynes et al 2004, Skeaff et al 2002, 2005, Thomson 2002, 2004).
Iodophores used by the dairy industry, which opportunistically enter the food supply, were the major, if not the prime, contributors to
intake of iodine in Australia and New Zealand in the 1960s.
Insufficient
intake of dietary
iodine, which typically comes from iodized salt and processed foods containing
iodine and iodized salt.
The researchers were especially interested in the
intake and concentrations
of nutrients that are limited or lacking in vegetarian foods, for example vitamin B12, vitamin D, selenium,
iodine and essential fatty acids.
Earlier research shows that the
intake of iodine has decreased in Finland over the past years.
Moreover, closer attention should be paid to the
intake of vitamin D and
iodine among vegans.
The daily recommended
intake of iodine in the UK is 140 µg / day and just over half comes from dietary sources other than milk / dairy products.
Most Americans have no problem getting enough
iodine, since table salt is iodized — but if you're on a low - sodium diet (as an increasing number
of Americans are for their heart health) or follow a vegan diet (more on that later), then you may need to up your
intake from other sources.
While the thyroid can adjust to higher
intakes of iodine, it is possible to develop thyroid problems from too much
iodine.
And finally,
iodine is very powerful at boosting your thyroid function, so increase your
intake of iodine by including more
iodine rich foods like shrimps, seaweed, tuna and cod.
However, if dietary
iodine intake is poor, around 5 grams
of iodized salt is needed to reach the recommended amount
of iodine in pregnant women.
Excess soybean
intake with
iodine deficiency caused abnormal growth
of the thyroid gland.
Iodine deficiency is on the rise for two reasons: decreased intake of iodine, and increased intake of br
Iodine deficiency is on the rise for two reasons: decreased
intake of iodine, and increased intake of br
iodine, and increased
intake of bromine.
Dramatic synergism between excess soybean
intake and
iodine deficiency on the development
of rat thyroid hyperplasia.
While
iodine is needed for thyroid hormone production, several studies have found that increased
iodine intake is associated with flareups
of Hashimoto's disease.
The World Health Organization recommends 250 µg / d
of daily
iodine intake, however, in the US, our diets usually provide enough
iodine so check with your doctor to see if you need additional supplementation.
An experiment was done that resulted in a case
of hypothyroidism, which researchers misinterpreted as being caused by excessive
iodine intake.
The Total Diet Study, performed by the FDA, reported an
iodine intake of 621 µg for 2 year - olds between 1974 and 1982, compared with 373 µg between 1982 and 1991.
A cautious iodization program bringing
iodine intake to a low recommended level is associated with an increase in the prevalence
of thyroid autoantibodies in the population.
Topliss (2016) also mentions, «Discouraging
iodine mega-supplementation may not preclude appropriate physiological supplementation in pregnancy to a total
intake of 250 µg / day» (11, p. 495).
Caution should therefore be heeded before adding supplemental
iodine to the regimen of any patient with thyroid autoimmunity, since, «Iodine intake modulates the pattern of thyroid diseases, even in cases of slight differences in intake and doses below 150 μg daily recommended for preventing IDD»
iodine to the regimen
of any patient with thyroid autoimmunity, since, «
Iodine intake modulates the pattern of thyroid diseases, even in cases of slight differences in intake and doses below 150 μg daily recommended for preventing IDD»
Iodine intake modulates the pattern
of thyroid diseases, even in cases
of slight differences in
intake and doses below 150 μg daily recommended for preventing IDD» (9).
90 %
of ingested
iodine is excreted via renal pathways, such that median spot urinary
iodine concentrations (UIC) will serve as a biomarker for recent dietary
iodine intake (1).
Correlation between
iodine intake and thyroid disorders: a cross-sectional study from the South
of China.
Thyroglobulin is a sensitive measure
of both deficient and excess
iodine intakes in children and indicates no adverse effects on thyroid function in the UIC range
of 100 - 299 micrograms / L: a UNICEF / ICCIDD Study Group Report.
What's more, individuals with a family history
of Hashimoto's thyroiditis should be especially cautious about
iodine intake, since the autoimmune reaction induced by
iodine is particularly likely in genetically susceptible individuals.
Another study demonstrated an increased incidence
of Hashimoto's and positive thyroid autoantibodies when Italy improved its low
iodine intake between 1995 and 2010 (15).
Animal models strongly support this pathophysiological mechanism whereby
iodine induces thyroid autoimmunity, as, «Excessive
iodine intake can precipitate spontaneous thyroiditis in genetically predisposed animals, by increasing the immunogenicity
of thyroglobulin (TG)» (19).
Meanwhile, however, «The spectrum
of thyroid diseases has undergone a significant change ranging from simple goiter to toxic nodular goiter, Hashimoto's thyroiditis, and thyroid cancer accompanied by the increase in
iodine intake, especially for thyroid cancer with an annual increase
of 14.51 % in China» (3).
US Food and Drug Administration's Total Diet Study: dietary
intake of perchlorate and
iodine.
Kelpasan can help to optimize your
intake of iodine which may be beneficial to those concerned with thyroid imbalances.
Intake of 3 - 6 mg / day, an amount commonly consumed in Japan without increased incidence
of autoimmune thyroiditis or hypothyroidism, may be necessary to support not only thyroid hormone production, but
iodine's important antioxidant functions in the breast and other tissues in which this trace mineral is concentrated.
Separate and apart from these glucosinolate - related studies on cruciferous vegetable
intake and thyroid function, it's important to note that the number one cause
of goiter worldwide is deficiency
of the mineral
iodine.
A moderate
intake of iodine in foods should not be problematic except in the most sensitive cases.
Restricting the
iodine intake in these sensitive people will indeed reverse the suppressive effect
of iodine, and TSH will normalize to lower levels.
And another on the potential dangers
of excessive
iodine intake: http://www.forefronthealth.com/
iodine-supplements/
A study shows how people in Japan and Korea, which habitually include seaweeds into their diets, could be relatively immune to negative effects
of high
iodine intake, but one
of these single seaweed - rich meals could already present health risks to unhabituated people in low -
iodine consuming countries.
An increased dietary
intake of iodine compensates for the consumption
of moderate amounts
of crucifers but can not reverse the effects
of large amounts
of crucifers.
It produces the thyroid hormone, which helps control the body's metabolism as well as many other organ functions, from
iodine and can not produce hormones when the body lacks
iodine.2 Some thyroid troubles originate from an
iodine deficiency, leading to a simple increase in
iodine intake to improve health.4 However, problems can also occur when the thyroid produces either too much or too little
of its hormone because there is trouble with the gland itself or with any
of the other glands in the body it communicates with.
Using assimilated extracts gathered from a mix
of seaweeds, Sea -
Iodine provides you the health
of the sea while dodging the dangers
of exorbitant salt
intake.
These experts believe the low
iodine intake is then compounded by eating an excess
of foods (known as goitrogens) which inhibit the small amounts
of iodine ingested from being absorbed and converted from T4 to T3.