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M$1.75
August 26, 2009 08:36 PM
Is soy healthy or not?
Someone just tweeted this link:
http://gretabfit.typepad.com/gretabfit/2009/08/im-rethinking-soyand-so-should-you.html
Discussing if soy is really a healthy food or not.
Is it?!?!!?
http://gretabfit.typepad.com/gretabfit/2009/08/im-rethinking-soyand-so-should-you.html
Discussing if soy is really a healthy food or not.
Is it?!?!!?
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Best Answer Decided by Votes
| August 26, 2009 10:00 PM |
Nutritionally, there are many benefits, one of the most talked about is Isoflavones. Isoflavones are thought to reduce the risk of some cancers. Soy foods are also a low cost protein source.
There are a couple of concerns around the use of soy as a protein. For infants and children, a soy allergy can be as serious as a peanut allergy. If soy is used as the protein source of packaged foods, it can be challenging to weed out unsafe foods.
The other concern is the effects of phytoestrogens in soy. Does their presence in our food supply increase the risk of some types of cancer. The phytoestrogens from soy are currently one suspect in the increasing occurrence of feline hyperthyroidism, especially in younger cats.
Can hardly wait until Thanksgiving Day!
Source(s):
http://vm.cfsan.fda.gov/~dms/fdsoypr.html
http://www.itsfortheanimals.com/DODDS-NUTRITION-THYROID.HTM
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Voted as best: chriswingate, psycgirl
Other Answers (12)
August 26, 2009 09:10 PM
Well, the original e-mail "...warning mothers not to feed their babies infant formulas or baby food that includes soy." seems to have a point about proteins and whatnot (you DO need to be careful with infants, of course), but it seems to go off the rails a bit in some ways: (1) caustic chemicals - And? There are lots of "caustic" chemicals, many of them entirely natural and normal. Like soap!
(2) GMOs? Yes, we should be careful, but humans have been modifying the genetics of plants and animals for thousands of years. It's what we do. If a particular GMO is shown to be dangerous, then we should ban it, but a general fear of GMOs is irrational. Personally, I'd rather have GMO soy than pesticide soy (or no soy at all).
(3) Soy = five birth control pills a DAY?
OK, I'm done reading this. This sounds made up, whole cloth. I'd like to see some evidence for this.
Here's what the USDA says. If you were serious about checking this out, I wouldn't rely entirely on the USDA, but it is a good, reputable starting point.
Source(s):
http://www.ars.usda.gov/is/AR/archive/jan04/soy0104.htm
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August 26, 2009 11:27 PM
There are several issues here, most of which (#s 1-6) are unsubstantiated speculations. The seventh claim does seem to have scientific merit. 1.) Caustic chemicals - Yes, there are food grade caustic chemicals, called GRAS chemical (Generally Regarded as Safe) by the USDA. In the typical commercial process for extracting soy proteins from soy beans, the proteins are extracted from defatted soy flour by adjusting the pH to slightly alkaline. (By the way, your blood pH is slightly alkaline, approximately 7.4. Milk of Magnesia has a pH of 10.5.). The pH range at which they adjust it to is to 10.0 and the most common chemical used is caustic soda, or sodium hydroxide. This helps remove the fat, and then the protein is separated from the slurry by adjusting the pH back down to below in the range of 3.8 to 6.0, which is the slightly acid range. (By the way lemons have a pH around 2.0.)
The moral of this story: there is no caustic left in the protein, it changes to salt, or sodium chloride when the pH is lowered. So there is no caustic residue !
http://www.patentstorm.us/patents/5658714/fulltext.html
http://wiki.answers.com/Q/What_is_the_pH_level_of_Milk_of_Magnesia
2.) GMO - genetically modified organisms - A big phrase that sounds bad, but definitely isn't the threat that it has been inflated to represent. All of the problems that exist are "perceived, or imagined" problems. Scientific evidence for any of these threats has not presented. And we have been genetically modifying plants since man has taken up the agrarian life style.
So you could sum up the Anti-GMO arguments the way Chicken Little perceived things: "The sky is falling! The sky is falling! "
3.) Soy protein in diets has been found to lower estrogen levels associated with the occurrence of breast and colon cancers.
news.bio-medicine.org/.../Diet-rich-in-soy-protein-lowers-estrogens-associated-with-breast-cancer-6694-1/
www.nutraingredients-usa.com/.../Hormone-link-to-colon-cancer-new-benefit-from-soy-protein
Additionally, there have been no studies that have corroborated the research of Drane, et. al -"Oestrogenic Activity of Soya-Bean Products"
which was done on hamsters, measuring uterine weights.
The hamsters were fed soy meal, which is different from soy protein. Soy meal has the fats, whereas soy protein is defatted. Hormones would be removed in the defatting process and would not be in the soy protein.
4-6.) Claims which are all unsupported speculations
7.) The only claim for which I believe that there is some evidence is that some soy-based formulas do have too much aluminum. The safety guideline is one mg/kg bodyweight and some formulas have exceeded this limit. High exposure averages were up to 0.9 mg/kg bw per week for milk-based formulae and 1.1 mg/kg bw per week for soya-based formulae.
Some brands had four times higher than the average concentrations, leading to a four times higher potential exposure.
http://www.nutraingredients.com/Regulation/EFSA-sets-new-intake-level-for-aluminium-in-food
Source(s):
in text
Tags: soy, protein, speculation, fear, hysteria
Helpful Answer?
(1)
(0)
Helpful: brian san
Tip coltech88 for this answer
August 27, 2009 03:11 AM
Of course soya is good for us esp adults as it is high in protein and thus helps in hair groth and also aids to step up metabolism.For an adult this is must in ones diet.http://www.skinsheen.com/articles-protein-shakes-and-supplements-54.aspx
Source(s):
http://www.skinsheen.com/articles-protein-shakes-and-supplements-54.aspx
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August 27, 2009 03:50 AM
The article mentioned hexane as a dangerous compound in soy protein isolate. This really has more to do with the processing of soy than soy itself. You will find hexane in all sorts of processed fats and oils from all sorts of sources. Soy does bind to thyroxine, which can exacerbate hypothyroidism in people who have it. However, for people with normal thyroid function, it would take a lot of soy to cause any noticeable effect. I consume soy milk as a substitute for cow's milk all the time and my thyroid levels are fine.
My main concern with soy is the fact that it mimics estrogen, which could theoretically trigger cancer. There are some isolated, weak links between excess soy consumption over the course of several years and lung cancer. However this has not been extensively studied and I would not cut soy from your diet just because of that.
As for the aluminum content, soy is not the only culprit. If you drink tea you're getting aluminum and fluoride. And I'm sure there's plenty of other foods that contain aluminum and a host of other unwelcome metals as well.
Overall soy is a great part of any diet. It's high in fiber, low in carbohydrates, and full of healthy fats, so it's not something I'd consider removing from your diet unless absolutely necessary.
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August 27, 2009 07:28 AM
No infant younger than the age of six months should be fed anything other than breast milk, because infants have pores in their stomach that pass undigested immunoglobin protiens from the mother's milk directly into the infant's bloodstream, in order for the infant to piggyback on the mother's immune-system for the first little while. If infants less than six months are given any sort of protien that's not a natural component of mother's milk, those protiens can get into the infant's bloodstream and lay the foundation for mega-allergies when the child is older. You'll notice that people with serious alergies were almost always not breastfed as infants.
So indeed, one should not be feeding soya to infants less than six months old, any more than one should be feeding them peanut butter! Guess how most allergies to peanuts started?
Otherwise, soya is *EXCELLENT* food for humans!
I'll eat it any day, any way, and my only issue is that if it's not prepared right it tastes like dogfood - which tastes like dogfood because it's got lots of haphazardly-processed soy as a major ingredient, demonstrating that soya can even sustain large carnivours like a dog.
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August 27, 2009 09:04 AM
YES definitely,Soy is a complete protein, and soyfoods are rich in vitamins and minerals including folate, potassium and, in some cases, fiber.
Source(s):
http://www.soyconnection.com/health_nutrition/index.php
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August 27, 2009 10:04 AM
Soy is in fact very healthy. It can promote growth and can put up to 20 years on to your life if you eat it every day. (I got that fact from some magazine I happened to be reading at the dentist so I don't have a source sorry). So, in conclusion, Soy is very healthy and, with the right seasoning, can tast pretty good.
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August 27, 2009 06:52 PM
I think soy is not good for health.
Source(s):
http://www.healingdaily.com/detoxification-diet/soy.htm
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August 27, 2009 11:30 PM
Soy can be very healthy if it is prepared in a proper way. The best is sprouted soy beans. You can grow them at home. Those in the shop are often acidic. When sprouted, soy beans become alkaline and more nutrient rich. Unsprouted soy beans are slightly acidic. Also it is healthy to eat soy in a form of tofu or soy milk (but it must be UNSWEETENED in order to be any beneficial to health), but the best way is to eat sprouts. They are easy to grow, no need for soil or special equipement. You buy ORGANIC seeds (about 3-4$ per pound), put them in a (preferably in a purified) water for about 9-11 hours and then take dish with holes used for washing vegetables etc. and put it on a bowl with soy beans on top. 3 times per day rinse by putting water and letting it drain to the bowl and grow them until about 1-2 inches. It takes up to 5 days. This is the article I recommend reading if you need more info about soy's effect on health:
http://articlesofhealth.blogspot.com/2008/03/sprouted-soy-is-good-for-body-and-may.html
Source(s):
articlesofhealth.blogspot.com / book "pH Miracle" by Dr. Rober O. Young
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August 28, 2009 06:55 PM
I consider tofu to be healthy way of balancing your diet. As you replace meat in your diet with soy based products, it becomes increasingly healthier. In particular, you could dramatically lower your cholesterol intake, and replace saturated animal fats with healthier vegetable oils. For those on a vegetarian diet, soybeans have a high content of lysine, an essential amino acid necessary for optimal human growth. Eating soybeans helps achieve better balance in your protein intake. Lysine availability in all vegetarian diets is the chief factor limiting growth, and soybeans have a lot of it, and it is very cheap. No wonder the Chinese eat so much of it! It is even better to add a little meat (it does not have to be much) to dramatically improve the overall nutrient value of the proteins in your diet.
I don't know where the excess aluminum comes from. Tofu is made from soybean milk, and can be precipitated using either Calcium sulfate, Magnesium chloride or "Nigari" which is seawater minus the sodium chloride. Nigari could contain other contaminants, such as aluminum, I don't know. Eating tofu coagulated with Calcium sulfate could also add to your calcium intake, which many are deficient in. Eating tofu precipitated with Nigari would add other trace elements, and would taste better, depending of course on the quality of the Nigari.
Source(s):
http://en.wikipedia.org/wiki/Tofu
http://www.enotes.com/how-products-encyclopedia/tofu
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Voted as best: kareul
August 28, 2009 08:13 PM
I re-read the anti-soy article which this thread has been based on, and I got more annoyed with each re-reading, because, in fact, there are some points in there that are valid, but I have *never* read a more irresponsibaly, poorly thought out spin-article. It is now in my books as setting a new record in bad, irresponsible *spin*.
Here's why:
In fact, if you're talking about an infant less than 6 months old, the stuff about 4) phytates, 5) lactose, 6) cholesterol, and 7) goitrogens is true, but it would also be true for dozens of other bean, pea, and letile foods that we humans eat all the time, with no ill effect, *unless* being consumed by an infant than six months old, when, from the infant's physiology's point of view, it's only half out of the womb, such that the infant should be consuming mother's milk only for the first six months (human infants are born semi-premature compared to other mammals because if they developed to the same level that other mammal infants do before birth, the child's head would be too large to get through the birth canal, such that humans have to take extra-special care of newborns much more so than other mammals need to of their own, but we can do that, because... we're humans)
The issue about 1) hexane is a big giant *so-what*, because hexane is benign to humans.
The issue about 2) "exposure" to GMO badly spun in that article that ... it makes my head spin, because basically 97% of all plant crops in north america have had some GMO work done on them going back *centuries* (or in the case of corn aka maize, millenia, because indigenous americans did such serious selective breeding of maize that it was impossible for anyone to know where maize as-first-seen-by-europeans came from until genetic science gave enough clues for scientists to backtrack and identify a wild sample, which is a thin whispy grass that look *nothing* like what you think of as corn/maize), which means, if you're going to insist that your infant not eat GMO plants, then you basically have put you and your child (after it's more than six months old) on an all meat diet, which is possible, because Inuit (aka eskimos) have lived on all-meat diets, but the trick is, in order to get things like vitamin C and Folic acid, you have to eat the *whole* animal, and you have to eat it raw, so make sure you freeze it first in order to kill the parasites.
The jazz about 8) aluminum is valid to a degree, in that it's not good to consume too much aluminum, *but*, i) all foods grown in soil have traces of aluminum, so the issue is to not to eat food grown in zones that are better used for an aluminum mine, and ii) yes of course mother's milk has less aluminum than soy, just like it has less aluminum than anything else you see around you.
So, what you can see is that the article is full of some seriously exagerated and misplaced, out-of context concerns, but what really gets-the-goat is the paragraph titles, like: "Lower IQ", as if eating soy *causes* lower IQ, when if you read the paragraph and think about it, it's just saying that if someone eats a diet with no lactose, then they won't ge getting as much galactose, and galactose is "valuable" (note that word "valuable"... not essential... just "valuable") to brain development (in infants... nothing to do with adults, so why is the article being targeted at adults?).
Furthermore, the article fails to mention that almost all people not from a north-west european heritage are lactose intolerant past the age of12, i.e. the majority of humankind on this planet, which means... what? That people who are lactose intolerant are naturaly going to have a lower IQ than those descended from north-west europe, where they evolved the double-recessive for lactose digestion after-age-12 because protien was historically in such short supply in that part of the world that if they couldn't eat milk, they'd have to kill the cow, which wouldn't last long, so they died if they couldn't live on milk (and thus the north-west european fascination with cheeze as a milk preservative).
The headers of every paragraph are equaly twisted and way blown beyond the norms of even extrordinary spin, so I'm thinking that the author *had* to be busy and so let a junior intern with a fresh and unpracticed degree in spinology (an probably with bad grades to boot) write the article, and I can already tell you what will happen if too much of this kind of bad spinning happens:
It used to be that advertizing was over the top, and would make false claims, such that finally people said, "Okay, we know you're going to make some hyped up claims in order to sell you product, but on the bottom line you can't lie," and so laws were enacted forcing advertizers to stick to the truth, no matter how exagerated the claims.
Likewise, if spin like this gets too out of hand, people are going to get fed up and laws are going to be passed telling the spin-doctors that if they want to twirl an object in the air so people will see it both front and back before making a judgement, go ahead, but it *Has To Be The Object That The Judgement Is Being Passed Upon That You Are Spinning*!!!
I know some hungry corporate and media lawyers (well... one...) who'd *love* to take on a case like that if there's a way he could get paid for it, so someone had better inform that article's author that she's flicking-her-bic in front of a powder keg.
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Here's why:
In fact, if you're talking about an infant less than 6 months old, the stuff about 4) phytates, 5) lactose, 6) cholesterol, and 7) goitrogens is true, but it would also be true for dozens of other bean, pea, and letile foods that we humans eat all the time, with no ill effect, *unless* being consumed by an infant than six months old, when, from the infant's physiology's point of view, it's only half out of the womb, such that the infant should be consuming mother's milk only for the first six months (human infants are born semi-premature compared to other mammals because if they developed to the same level that other mammal infants do before birth, the child's head would be too large to get through the birth canal, such that humans have to take extra-special care of newborns much more so than other mammals need to of their own, but we can do that, because... we're humans)
The issue about 1) hexane is a big giant *so-what*, because hexane is benign to humans.
The issue about 2) "exposure" to GMO badly spun in that article that ... it makes my head spin, because basically 97% of all plant crops in north america have had some GMO work done on them going back *centuries* (or in the case of corn aka maize, millenia, because indigenous americans did such serious selective breeding of maize that it was impossible for anyone to know where maize as-first-seen-by-europeans came from until genetic science gave enough clues for scientists to backtrack and identify a wild sample, which is a thin whispy grass that look *nothing* like what you think of as corn/maize), which means, if you're going to insist that your infant not eat GMO plants, then you basically have put you and your child (after it's more than six months old) on an all meat diet, which is possible, because Inuit (aka eskimos) have lived on all-meat diets, but the trick is, in order to get things like vitamin C and Folic acid, you have to eat the *whole* animal, and you have to eat it raw, so make sure you freeze it first in order to kill the parasites.
The jazz about 8) aluminum is valid to a degree, in that it's not good to consume too much aluminum, *but*, i) all foods grown in soil have traces of aluminum, so the issue is to not to eat food grown in zones that are better used for an aluminum mine, and ii) yes of course mother's milk has less aluminum than soy, just like it has less aluminum than anything else you see around you.
So, what you can see is that the article is full of some seriously exagerated and misplaced, out-of context concerns, but what really gets-the-goat is the paragraph titles, like: "Lower IQ", as if eating soy *causes* lower IQ, when if you read the paragraph and think about it, it's just saying that if someone eats a diet with no lactose, then they won't ge getting as much galactose, and galactose is "valuable" (note that word "valuable"... not essential... just "valuable") to brain development (in infants... nothing to do with adults, so why is the article being targeted at adults?).
Furthermore, the article fails to mention that almost all people not from a north-west european heritage are lactose intolerant past the age of12, i.e. the majority of humankind on this planet, which means... what? That people who are lactose intolerant are naturaly going to have a lower IQ than those descended from north-west europe, where they evolved the double-recessive for lactose digestion after-age-12 because protien was historically in such short supply in that part of the world that if they couldn't eat milk, they'd have to kill the cow, which wouldn't last long, so they died if they couldn't live on milk (and thus the north-west european fascination with cheeze as a milk preservative).
The headers of every paragraph are equaly twisted and way blown beyond the norms of even extrordinary spin, so I'm thinking that the author *had* to be busy and so let a junior intern with a fresh and unpracticed degree in spinology (an probably with bad grades to boot) write the article, and I can already tell you what will happen if too much of this kind of bad spinning happens:
It used to be that advertizing was over the top, and would make false claims, such that finally people said, "Okay, we know you're going to make some hyped up claims in order to sell you product, but on the bottom line you can't lie," and so laws were enacted forcing advertizers to stick to the truth, no matter how exagerated the claims.
Likewise, if spin like this gets too out of hand, people are going to get fed up and laws are going to be passed telling the spin-doctors that if they want to twirl an object in the air so people will see it both front and back before making a judgement, go ahead, but it *Has To Be The Object That The Judgement Is Being Passed Upon That You Are Spinning*!!!
I know some hungry corporate and media lawyers (well... one...) who'd *love* to take on a case like that if there's a way he could get paid for it, so someone had better inform that article's author that she's flicking-her-bic in front of a powder keg.
August 28, 2009 08:37 PM
I hope you are not commenting on my particular response. Perhaps, if you have the time, you could revise the beginning so it at least points to the comment you really want to respond to. Thanks
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August 28, 2009 10:54 PM
PS - I said "infants should be comsuming mother's milk only for the first three months", but actually it would have been more clear to say, "infants should be consuming mother's milk, and mother's milk only, for the first six months".
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August 30, 2009 07:37 PM
I wasn't commenting on your post in particular. I hit the wrong tab for submitting a Reply to a post I'd made earlier, because I wanted to expand on my own post, but I wasn't watching, and you're was the last post in the list, and that's the Reply button I clicked.
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Don't confuse it with benzene, which is a six-carbon ring.
Benzene is a carcinogen, and used to show up in the synthetic gasolines that German's learned to make from coal to work around the embarogoes that would be slapped around them by the Brits during the world wars.