[Nille]

Her er svaret jeg fikk fra stoffskifte eksperten i det andre forumet (en av grunnleggerne der):

Opprinnelig lagt inn av Doreen T

Yes Nille, you might consider limiting your intake of certain foods which possibly can interfere with thyroid function .. they're known as "goitrogens" or "causing goiters". Soy foods ... soy protein, tofu, soy milk, protein bars etc ... head the list. Also: Brussels sprouts, rutabaga, turnips, kohlrabi, radishes, cauliflower, African cassava, millet, babassu (a palm-tree coconut fruit popular in Brazil and Africa) cabbage, and kale ... Note - the goitrogenic property is apparently destroyed with cooking, so the advice is to avoid or strictly limit your consumption of these foods RAW, and stick to moderate amounts cooked.

Dette stemmer med hva Mary Shomon skriver i boka si. Et helt kapittel om hvordan soya virker inn. Klaerer ikke å oversette fordi jeg mangler skikkelig norske ord, men på internet infoen sier hun:

Sitat:

A Look at the Dangers of Soy to the Health of Your Thyroid

Sitat:

Health and nutrition magazines tout the benefits of soy as a cure-all for women's health, hormonal problems, cancer prevention, weight loss, and many other problems. The reality, however, is that promotion of soy may be more a matter of business and marketing, rather than recommendations based on sound scientific evidence.

Isoflavones, the key components of soy that make them so potent as a posible substitute for hormone replacement, mean that soy products, while touted as foods and nutritional products -- often are used and act as like a hormonal drug.

If you have a diagnosed or undiagnosed thyroid problem, or a history of autoimmune disease, overconsumption of soy isoflavones can potentially trigger a thyroid condition. Soy foods can worsen an existing diagnosed thyroid problem in many people.
In both cases the symptoms such as fatigue, weight gain, and depression or moodiness are often overlooked and hard to diagnose.

A recent study found that as millions of Americans -- perhaps as many as more than 10 million -- have an undiagnosed thyroid condition. The vast majority of thyroid patients are women over 40. This is the same group that, responding to marketing claims that promote soy as helping to prevent breast cancer, reducing the risk of high cholesterol or heart disease, or as a treatment for symptoms of menopause, are turning to soy foods and isoflavone supplements in vast numbers.

Here is more information regarding soy and its relationship to the thyroid.

FDA's Soy Experts Speak Out Against Soy

"there is abundant evidence that some of the isoflavones found in soy, including genistein and equol, a metabolize of daidzen, demonstrate toxicity in estrogen sensitive tissues and in the thyroid. This is true for a number of species, including humans.

Additionally, isoflavones are inhibitors of the thyroid peroxidase which makes T3 and T4. Inhibition can be expected to generate thyroid abnormalities, including goiter and autoimmune thyroiditis. There exists a significant body of animal data that demonstrates goitrogenic and even carcinogenic effects of soy products. Moreover, there are significant reports of goitrogenic effects from soy consumption in human infants and adults."