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Soy Warning
Thursday, July 5, 2007
How much soy is in your diet? Probably a lot more than you think, and it may
not be as healthy for you as you've been led to believe. Americans are using
soy products in record numbers. In addition to splashing soy sauce on
Chinese food and home cooked stir fries, we're adding tofu and other soy
products to our diets by the ton under the assurance that soy is good for
us.
But some experts advise caution. First, we're getting much more soy in our
diets than most of us realize. Soy is in countless products including
cereals, cakes, breads, sausages and cheese. You'll find it under many
different aliases, including vegetable oil, protein concentrate, textured
plant protein or lecithin, and soy protein isolate. Second, more may not be
better.
As early as 1950, studies showed that rats fed soy protein had lower
fertility, smaller litters and increased mortality. In 1999, two American
scientists at the Food and Drug Administration warned against the health
claims of soy. "There is abundant evidence that the isoflavones in soy
demonstrate toxicity in estrogen sensitive tissues and in the thyroid.
Eating as little as 30 grams of soy per day can result in hypothyroidism,
with symptoms of lethargy, constipation, weight gain and fatigue."
Soy contains many chemicals such as phytoestrogens which act like estrogens
in the body. Other chemicals include enzyme inhibitors which hamper the
digestion of protein, phytates which keep the body from absorbing minerals,
and haemagluttin which causes red blood cells to clot.
The ancient, slow-fermentation process of making tofu used by the Chinese
and Japanese destroyed most of the chemicals, but modern production methods
don't.
A Swedish study found that 100 grams of baby formula has the same amount of
estrogen as a contraceptive pill. "Soy infant feeding floods the bloodstream
with female hormones that inhibit testosterone," said the Weston A. Price
Foundation, which supports nutritional research. And what about girls who
enter puberty years before their grandmothers did?
The ancients knew the power of soy's estrogen content. Buddhist monasteries
traditionally used tofu to help monks remain celebate, while Japanese women
punished their unfaithful husbands by adding more soy to their diets.
Soy Warning
Thursday, July 5, 2007
How much soy is in your diet? Probably a lot more than you think, and it may
not be as healthy for you as you've been led to believe. Americans are using
soy products in record numbers. In addition to splashing soy sauce on
Chinese food and home cooked stir fries, we're adding tofu and other soy
products to our diets by the ton under the assurance that soy is good for
us.
But some experts advise caution. First, we're getting much more soy in our
diets than most of us realize. Soy is in countless products including
cereals, cakes, breads, sausages and cheese. You'll find it under many
different aliases, including vegetable oil, protein concentrate, textured
plant protein or lecithin, and soy protein isolate. Second, more may not be
better.
As early as 1950, studies showed that rats fed soy protein had lower
fertility, smaller litters and increased mortality. In 1999, two American
scientists at the Food and Drug Administration warned against the health
claims of soy. "There is abundant evidence that the isoflavones in soy
demonstrate toxicity in estrogen sensitive tissues and in the thyroid.
Eating as little as 30 grams of soy per day can result in hypothyroidism,
with symptoms of lethargy, constipation, weight gain and fatigue."
Soy contains many chemicals such as phytoestrogens which act like estrogens
in the body. Other chemicals include enzyme inhibitors which hamper the
digestion of protein, phytates which keep the body from absorbing minerals,
and haemagluttin which causes red blood cells to clot.
The ancient, slow-fermentation process of making tofu used by the Chinese
and Japanese destroyed most of the chemicals, but modern production methods
don't.
A Swedish study found that 100 grams of baby formula has the same amount of
estrogen as a contraceptive pill. "Soy infant feeding floods the bloodstream
with female hormones that inhibit testosterone," said the Weston A. Price
Foundation, which supports nutritional research. And what about girls who
enter puberty years before their grandmothers did?
The ancients knew the power of soy's estrogen content. Buddhist monasteries
traditionally used tofu to help monks remain celebate, while Japanese women
punished their unfaithful husbands by adding more soy to their diets.
