Re: Soy and t3

[Guest guest]

Soy shoudl be avoided by all that are hypothyroid. I am not sure HOW it

affects thyroid but that it does is a fact.

--

http://nthadrenalsweb.org/

http://health.groups.yahoo.com/group/NaturalThyroidHormonesADRENALS/

http://faqhelp.webs.com/

http://health.groups.yahoo.com/group/RT3_T3/

http://www.thyroid-rt3.com/

http://groups.yahoo.com/group/HypoPets/

http://www.stopthethyroidmadness.com/

[Guest guest]

Hi ,

>>>> Will soy prevent T3 from working? I am eating soy " yofu " ad we speak cause

Hertoghe told me to stop all milk products! The hindus were right afterall. .

I avoid soy sauce but is a lil soya yoghurt ok, for digestion purposes?<<<

Actually Soy Sauce (proper FERMENTED Soy Sauce) is actually better than Soy

yoghurt as the fermentation reduces the phytic acid in it.

However Soy should not be consumed by anyone. Hypothyroid or not.

Search " Soy " on Weston Price site (I got 1310 results!!!)

These are just a couple of them.....

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Confused About Soy?--Soy Dangers Summarized

http://www.westonaprice.org/Soy-Alert/

High levels of phytic acid in soy reduce assimilation of calcium, magnesium,

copper, iron and zinc. Phytic acid in soy is not neutralized by ordinary

preparation methods such as soaking, sprouting and long, slow cooking. High

phytate diets have caused growth problems in children.

Trypsin inhibitors in soy interfere with protein digestion and may cause

pancreatic disorders. In test animals soy containing trypsin inhibitors caused

stunted growth.

Soy phytoestrogens disrupt endocrine function and have the potential to cause

infertility and to promote breast cancer in adult women.

Soy phytoestrogens are potent antithyroid agents that cause hypothyroidism and

may cause thyroid cancer. In infants, consumption of soy formula has been linked

to autoimmune thyroid disease.

Vitamin B12 analogs in soy are not absorbed and actually increase the body's

requirement for B12.

Soy foods increase the body's requirement for vitamin D.

Fragile proteins are denatured during high temperature processing to make soy

protein isolate and textured vegetable protein. Processing of soy protein

results in the formation of toxic lysinoalanine and highly carcinogenic

nitrosamines.

Free glutamic acid or MSG, a potent neurotoxin, is formed during soy food

processing and additional amounts are added to many soy foods.

Soy foods contain high levels of aluminum which is toxic to the nervous system

and the kidneys.

The above soy dangers and our Myths & Truths About Soy are available in our Soy

Alert! trifold brochure for mass distribution.

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This is an excerpt. The rest of the article makes interesting reading too.....

Soy Interferes with Enzymes

http://www.westonaprice.org/Soy-and-the-Brain.html

While soybeans are relatively high in protein compared to other legumes, they

are a poor source of protein because other proteins found in soybeans act as

potent enzyme inhibitors. These " anti-nutrients " block the action of trypsin and

other enzymes needed for protein digestion. Trypsin inhibitors are large,

tightly folded proteins that are not completely deactivated during ordinary

cooking and can reduce protein digestion. Therefore, soy consumption may lead to

chronic deficiencies in amino acid uptake.8

Soy's ability to interfere with enzymes and amino acids may have direct

consequence for the brain. As White and his colleagues suggest, " isoflavones in

tofu and other soyfoods might exert their influence through interference with

tyrosine kinase-dependent mechanisms required for optimal hippocampal function,

structure and plasticity. " 2

High amounts of protein tyrosine kinases are found in the hippocampus, a brain

region involved with learning and memory. One of soy's primary isoflavones,

genistein, has been shown to inhibit tyrosine kinase in the hippocampus, where

it blocked " long-term potentiation, " a mechanism of memory formation.9

Tyrosine, Dopamine, and Parkinson's Disease

The brain uses the amino acids tyrosine or phenylalanine to synthesize the key

neurotransmitters dopamine and norepinephrine, brain chemicals that promote

alertness and activity. Dopamine is crucial to fine muscle coordination. People

whose hands tremble from Parkinson's disease have a diminished ability to

synthesize dopamine. An increased incidence of depression and other mood

disorders are associated with low levels of dopamine and norepinephrine. Also,

the current scientific consensus on attention-deficit disorder points to a

dopamine imbalance.

Soy has been shown to affect tyrosine hydroxylase activity in animals, causing

the utilization rate of dopamine to be " profoundly disturbed. " When soy lecithin

supplements were given throughout perinatal development, they reduced activity

in the cerebral cortex and " altered synaptic characteristics in a manner

consistent with disturbances in neural function. " 10

Researchers at Sweden's Karolinska Institute and at the National Institutes of

Health are finding a connection between tyrosine hydroxylase activity, thyroid

hormone receptors, and depleted dopamine levels in the brain--particularly in

the substantia nigra, a region associated with the movement difficulties

characteristic of Parkinson's disease.11,12,13

Soy Affects the Brain via the Thyroid Gland

Tyrosine is crucial to the brain in another way. It's needed for the body to

make active thyroid hormones, which are a major physiological regulator of

mammalian brain development. By affecting the rate of cell differentiation and

gene expression, thyroid hormones regulate the growth and migration of neurons,

including synaptic development and myelin formation in specific brain regions.

Low blood levels of tyrosine are associated with an underactive thyroid gland.

It is well known that isoflavones in soy products can depress thyroid function,

causing goiter (enlarged thyroid gland) and autoimmune thyroid disease. In the

early 1960s, goiter and hypothyroidism were reported in infants fed soybean

diets.14 Scientists at the National Center for Toxicological Research showed

that the soy isoflavones genistein and daidzein " inhibit thyroid

peroxidase-catalyzed reactions essential to thyroid hormone synthesis. " 15

Japanese researchers studied effects on the thyroid from soybeans administered

to healthy subjects. They reported that consumption of as little as 30 grams

(two tablespoons) of soybeans per day for only one month resulted in a

significant increase in thyroid stimulating hormone (TSH), which is produced by

the brain's pituitary gland when thyroid hormones are too low. Their findings

suggested that " excessive soybean ingestion for a certain duration might

suppress thyroid function and cause goiters in healthy people, especially

elderly subjects. " 16

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Lethal Lee