phytoestrogens
Comments
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For all you research geeks like myself, here is a positively FABULOUS site. It tells you all about Flax, Soy, and any other plant or herb you are interested in. It sites all the studies and the current controversy of Soy. Happy Reading! http://www.herbalchem.net/phytoestrogens_and_human_health.htm#Phytoestrogens%20and%20breast%20cancer
Lisa
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Thank Lisa -- heading straight there!
Louise
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So, the bottom line is moderation---according to this study. Right? Why does it all have to be so confusing. Simple yes's and no's don't apply anymore, do they?
whine----whine----wine????
Jennifer
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If this is a vote about simple yes or no's, my vote is no. Until someone can explain why genistein in soy promotes the growth of breast tumors, I'll stay firmly in the no position.
I can't even talk about soy being fed to our little ones. Instead, I'll let Ms. Daniels talk for me:
http://www.mothering.com/articles/growing_child/food/soy_story.html
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Ok. let me rephrase it and say it this way.......................................why can't THEY get on the same page, and have one answer? Some say "go ahead", some say "no, wait---better not", some will say. "who knows"; you get the picture.
I could go on and on here. I will stay away as much as possible. It's IN EVERYTHING if you read labels. I'll stay away from tofu, soy nuts (whatever those are), and soy protein powders. However, I bought Special K snack bars, and what's in those-----soy. So, am I going to eat one? Probably once in a while. Pig out on them? NO---never did that before BC!!
I had a daughter that we had to put on soy formula. She couldn't tolerate goat's or cow's milk. Don't even know if rice milk was around then, and if so, probably out of my budget range.
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The soy industry is doing a great job in covering up the real facts of soy research, by ignoring them. They act like they don't exist. Who would know to even look for them? If we hear it long enough, that something is "good" for us, we'll believe it. Why wouldn't we?
I tried to buy some salad dressing without soy last week. I gave up looking. I'll have to learn how to make french dressing or cave.
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Rosemary,
I just checked out the link you posted
http://www.mothering.com/articles/growing_child/food/soy_story.html
and I think some of the data MUST be wrong. I grew up in Japan and lived there until after my 2 kids were born, and I know for a fact that Japanese eat a LOT of soy products. Tofu is a common food for all three meals a day, and add to that miso, simmered soybeans, and soysauce (flavors almost every dish).... I'm pretty sure Japanese are eating a lot of soy. True, soymilk is a new thing over there, and I've never heard of soy formula for Japanese babies. The thing is, breast cancer rates in Japan have generally been lower than ours, until recent decades. Now the numbers are getting higher.
But hey, what the heck do I know. I did eat a lot of soy products and now I got bc. Damn.
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Do we all realize that soybeans are one of the most genetically modified crops in this country?
Anyone hear of "Round-Up" soybeans? They actually spray them with Monsanto's Round-Up (which we all know kills everything) and they can still harvest these soybeans after spraying and sell them as "organic"?
When I heard this is when I stopped eating any soy products, period. As if the genetic modification is not bad enough. . .
Maybe where and how the soybeans are grown has something to do with this?
Rant over.
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From what Daniels was saying, if you took all the soy grown in Asian countries and per person, they weren't eating as much as we give them credit for. But fermented soy, per Mercola, doesn't cause the problem. Your experience there is the truer evidence. I've read also that they didn't take in consideration how much tea is being consumed which is researched as being very beneficial for us.
Yes, I ate a lot of soy the year before I was dx'd also and here I am anyway.
We manufacture soy differently and that might be the biggest problem. Something to do with carcinogenic washes. Supposedly, this process isn't done in Asia.
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A little more on the carcdinogenic, "Round Up" wash soybeahs:
Soybeans are one of the "biotech food" crops that have been genetically modified, and GM soybeans are being used in an increasing number of products. In 1995 Monsanto introduced Roundup Ready (RR) soybeans that have had a copy of a gene from the bacterium, Agrobacterium sp. strain CP4, inserted into its genome by means of a gene gun, that allows the transgenic plant to survive being sprayed by this non-selective herbicide, Roundup. Glyphosate, the active ingredient in Roundup, kills conventional soybeans. The bacterial gene is EPSP (5-enolpyruvyl shikimic acid-3-phosphate) synthase. Soybeans also have a version of this gene, but the soybean version is sensitive to glyphosate, while the CP4 version is not.[12]
RR soybeans allow a farmer to spray widely the herbicide Roundup and so to reduce tillage or even to sow the seed directly into an unplowed field, known as no-till farming or conservation tillage. No-till agriculture has many advantages, greatly reducing soil erosion and creating better wildlife habitat;[13] it also saves fossil fuels and sequesters CO2, a greenhouse effect gas.[14] It should be noted that RR soybeans simplify the process, but are not a requirement for no-till agriculture. Roundup may be sprayed on the field (and weeds) before the non-RR soybeans have emerged from the soil.
In 1997, about 8% of all soybeans cultivated for the commercial market in the United States were genetically modified. In 2006, the figure was 89%. As with other "Roundup Ready" crops, concern is expressed over damage to biodiversity.[15] However, the RR gene has been bred into so many different soybean cultivars that the genetic modification itself has not resulted in any decline of genetic diversity, as demonstrated by a study on genetic diversity[16]
The ubiquitous use of such types of GM soybeans in the Americas has caused problems with exports to some regions. GM crops require extensive certification before they can be legally imported into the European Union, where there is extensive supplier and consumer reluctance to use GM products for consumer or animal use. Difficulties with coexistence and subsequent traces of cross-contamination of non-GM stocks have caused shipments to be rejected and have put a premium on non-GM soy.
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This British article just came across the transom.
Breast cancer risk in relation to urinary and serum biomarkers of phytoestrogen exposure in the EPIC-Norfolk studyHeather A Ward , Gaelle Chapelais , Gunter G.C. Kuhnle , Robert Luben , Kay-Tee Khaw and Sheila Bingham
Breast Cancer Research 2008, 10:R32doi:10.1186/bcr1995
Published: 17 April 2008
Introduction
Phytoestrogens are a group of compounds found in plants that structurally resemble the hormone estradiol, and thus have the potential to act as estrogen agonists or antagonists. Their potential effects may alter the risk of breast cancer, but only a limited range of phytoestrogens has been examined in prospective cohort studies.
Methods
Serum and urine samples from 237 incident breast cancer cases and 952 controls (aged 45 to 75) in the European Prospective into Cancer (EPIC)-Norfolk cohort were analyzed for seven phytoestrogens [daidzein, enterodiol, enterolactone, genistein, glycitein, o-desmethylangolensin (O-DMA), and equol] using liquid chromatography/ mass spectrometry. Data on diet, demographics, anthropometrics, and medical history were collected upon recruitment. All models were adjusted for weight, fat and energy intake, family history of breast cancer, social class, analytical batch, and factors related to estrogen exposure.
Results
Urinary or serum phytoestrogens were not associated with protection from breast cancer in the EPIC-Norfolk cohort. Breast cancer risk was marginally increased with higher levels of total urinary isoflavones [OR 1.08 (1.00 to 1.16), p 0.055], and among those with estrogen receptor (ER)-positive tumours, the risk of breast cancer was increased with higher levels of urinary equol [OR 1.07 (1.01 to 1.12), p 0.013].
Conclusions
There was limited evidence of an association between phytoestrogen biomarkers and breast cancer risk in the present study. There was no indication of decreased likelihood of breast cancer with higher levels of phytoestrogen biomarkers, but the observation that some phytoestrogen biomarkers may be associated with greater risk of breast cancer warrants further study () with greater statistical power.
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Soooo, does this mean we stop eating!
Don'tcha just love it when they say it warrants further study?
Shirley
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Hi,
Maybe we better repost the phytoestrogen list. Are any beans lower? Even my Bumblebee Tuna packed in water says contains soy- not just packaged in a plant----. The other I have tuna in oil is soyoil. I know it is a different process, but the water packed was actually soy. Beth
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Yes, it's getting strange and stranger in eating-land, Shirley.
Today I grabbed a low-fat Yoplait yogurt, and ate away with a small orange and a few walnuts. Suddenly I started thinking of high fructose corn syrup (HFCS) and corn, and unregulated corn growth and subsidies since the Nixon agricultural years, and how corn is everywhere now, or at least in corn syrup is, and in everything now, including 10% in the gas for my car, with gas price going up!
Sure thing, second on the list, HFCS. So, onto a brief search of pesticides and corn (couldn't find much but it's got to be out there), corn and cancer (up popped a review on liver/pancreatic fat and cancer and abdominal fat) and lastly corn and breast cancer (up popped mice fed high and low levels of HFCS and then injected with mammary cancer cells and sure enough the high level corn oil diet caused more cancer, da).
So, I need to look more at this HFCS issue since it's in everything, and related again to fat gain (they say it's fueling obesity in the US) well, then it's those abdominal and thigh lipocytes or fat cells and estrogen and insulin again that comes to mind. Gosh, I should have sucked them out when I had the chance!
So soy isn't great, and now I'm wondering about high fructose corn syrup too. Not that I eat a lot of it, but commercial yogurt is full of it, so back to making my own.
You'd think we would loose weight from all of this dietary cutting out, but nooooo!
Tender -
Tender, I've been eating flaxseed with yogurt and honey for almost a year now. Around the time China was in the news for putting lead paint on toys I decided to be more aware of my food sources. I wanted some Texas honey and spent several minutes in the honey section and discovered many brands listed five countries, including China, as the source.
Finally I found a bottle labeled "Texas honey blend". USA was the only country of origin listed and I bought it. Later I discovered an ingredient list. It hadn't occurred to me there was anything but honey in my honey. There was! Guess what was in it? High fructose corn syrup! I felt so duped.
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There are yogurts out there that do not have HFCS. The one I like the best is made by a company called "Fage". It is Greek plain strained yogurt and comes in 0% fat, 2% and whole milk. I usually take the 0% and add fresh fruit and whole grain cereal (Kashi). It tastes pretty good and is good for you. I avoid the yogurts that put the fruit in for you.
Robin
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Here is a link that may better explain soy consumption for us.
http://www.breastcancer.org/tips/nutrition/new_research/20080411.jsp
Rosemary, I eat lots of greens, (with a little dressing) so had the same problem. I found a few Kraft dressings that have no soy. If you need specifics pm me.
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Annie's Naturals brand salad dressings are also good and are (at least the ones I've tried) soy free. They make some good light dressings too- including a raspberry vinaigrette and ginger dressing. They are made with canola oil.
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