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Tuesday, 15 March 2011

Foods that suppress iodine uptake

www.stopthethyroidmadness.com...

Goitrogenic drugs and chemicals

Chemicals that have been shown to have goitrogenic effects include:

* Sulfadimethoxine, propylthiouracil, potassium perchlorate, and iopanoic acid.[1]
* Some oxazolidines such as goitrin.[2]
* Thiocyanate overload in Central Africa, especially if also in conjunction with selenium deficiency.[3] Reliance on cassava as a carbohydrate provides a source of thiocyanate in some areas.[4]
* Ions such as thiocyanate and perchlorate decrease iodide uptake by competitive inhibition and, as a consequence of reduced thyroxine and triiodothyronine secretion by the gland, cause an increased release of thyrotropin (by reduced negative feedback), which then stimulates the gland.
* Amiodarone inhibits peripheral conversion of thyroxine to triiodothyronine; also interferes with thyroid hormone action.
* Lithium inhibits thyroid hormone release.
* Phenobarbitone, phenytoin, carbamazepine, rifampin induce metabolic degradation of T3 and T4.

Goitrogenic foods

Certain raw foods (cooking inactivates the goitrogens) have been identified as lightly goitrogenic. These foods include:

* cassava
* Soybeans (and soybean products such as tofu, soybean oil, soy flour, soy lecithin)
* Pine nuts
* Peanuts
* Millet
* Strawberries
* Pears
* Peaches
* Spinach
* Bamboo shoots
* Sweet Potatoes
* Vegetables in the genus Brassica [5]
o Bok choy
o Broccoli
o Broccolini (Asparations)
o Brussels sprouts
o Cabbage
o Canola
o Cauliflower
o Chinese cabbage
o Choy sum
o Collard greens
o Horseradish
o Kai-lan (Chinese broccoli)
o Kale
o Kohlrabi
o Mizuna
o Mustard greens
o Radishes
o Rapeseed (yu choy)
o Rapini
o Rutabagas
o Tatsoi
o Turnips

Thyroid hyperplasia has been demonstrated in mice:[6]

Despite being generally a stimulant, caffeine (examples: coffee, tea, cola, chocolate) acts on thyroid function as a suppressant.[7] Indeed some studies on rats suggest that excess caffeine in conjunction with a lack of iodine may promote the formation of thyroid cancers.[8]

en.wikipedia.org...

Also, if you are still eating white bread made with bleached flour... stop doing it! The bromine used in the bleaching process can be taken up into the thyroid and cause dysfunction. Not to mention your body will absorb all that tasty radioactive iodine to replace the bromine you acquired from that bread you thought was good for you.

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