Re: Soy myths part 2

 Myth: Soy foods can prevent osteoporosis.

Truth: Soy foods can cause deficiencies in calcium and vitamin D, both needed for healthy bones. Calcium from bone broths and vitamin D from seafood, lard and organ meats prevent osteoporosis in Asian countries—not soy foods.

 

The real truth is: As I pointed out in my last post there are no studies showing that soy reduces vitamin D levels. And many soy products are being fortified with vitamin D, so they are being very misleading. As for calcium I have yet to see any evidence that soy reduces calcium either. In fact soy provides some calcium and magnesium. But more importantly is also provides other nutrients and compounds for healty bones. Particularly silica, which is the number one most important needed for healthy bones. Like vitamin D, silica helps with calcium absorption. Although unlike vitamin D silica helps to form the collagen matrix that is responsible the vast majority of bone's strength. In addition the silica is responsible for the mineralization of all bone, and this includes the mineralization by calcium. Without silica all the vitamin D and calcium is not going to do squat for the bones.

 

In addition, soy contains isoflavones that have been proven to INCREASE bone density and strength and/or decrease bone loss:

http://www.ncbi.nlm.nih.gov/pubmed/19877511?itool=EntrezSystem2.PEntrez.Pubme...

 

http://www.ncbi.nlm.nih.gov/pubmed/17392695?ordinalpos=1&itool=EntrezSyst...

 

 

http://www.ncbi.nlm.nih.gov/pubmed/18063230?ordinalpos=1&itool=EntrezSyst...

 

http://www.ncbi.nlm.nih.gov/pubmed/19759166?itool=EntrezSystem2.PEntrez.Pubme...

 

 

On the other hand meat and dairy have been shown to decrease bone density. This is in large part due to the high phosphorus content, which displaces calcium from bones. In addition high protein such as in dairy products interferes with calcium absorption. This is why the highest milk consuming nations in the world also have the highest osteoporosis rates.

 

In addition animal proteins have been shown to induce bone loss though metabolic acids:

http://www.springerlink.com/content/35211uv240638198/

http://jn.nutrition.org/cgi/content/abstract/111/3/553

http://jn.nutrition.org/cgi/reprint/120/1/134.pdf

https://www.msu.edu/~corcora5/food/vegan/calcium+protein.html

http://www.ajcn.org/cgi/content/full/75/4/609

 

So as we can see the intake of animal proteins has a negative effect on bone unlike soy that has a positive effect on bone density. So they either deliberately lied or got their facts backward.

 

 

Myth: Modern soy foods protect against many types of cancer.

Truth: A British government report concluded that there is little evidence that soy foods protect against breast cancer or any other forms of cancer. In fact, soy foods may result in an increased risk of cancer.

The truth is that numerous studies have shown the anti-cancer effects of soy isoflavones. So all I can conclude is that the British government has not learned how to read medical studies:

http://curezone.com/forums/fm.asp?i=1536933#i

http://curezone.com/forums/fm.asp?i=1505384#i

http://curezone.com/forums/fm.asp?i=1536939#i

 

http://curezone.com/forums/fm.asp?i=1443251#i

 

http://www.ncbi.nlm.nih.gov/pubmed/19996398?itool=EntrezSystem2.PEntrez.Pubme...

http://www.ncbi.nlm.nih.gov/pubmed/19800779?itool=EntrezSystem2.PEntrez.Pubme...

http://www.ncbi.nlm.nih.gov/pubmed/19789363?itool=EntrezSystem2.PEntrez.Pubme...

http://www.ncbi.nlm.nih.gov/pubmed/19789300?itool=EntrezSystem2.PEntrez.Pubme...

http://www.ncbi.nlm.nih.gov/pubmed/17200150?ordinalpos=1&itool=EntrezSyst...

http://www.ncbi.nlm.nih.gov/pubmed/14628433

"There are growing body of experimental evidence that show the inhibition of human cancer cells by genistein through the modulation of genes that are related to the control of cell cycle and apoptosis. Moreover, it has been shown that genistein inhibits the activation of NF-kappa B and Akt signaling pathways, both of which are known to maintain a homeostatic balance between cell survival and apoptosis. Genistein is commonly known as phytoestrogen, which targets estrogen- and androgen-mediated signaling pathways in the processes of carcinogenesis. Furthermore, genistein has been found to have antioxidant property, and shown to be a potent inhibitor of angiogenesis and metastasis. Taken together, both in vivo and in vitro studies have clearly shown that genistein, one of the major soy isoflavones, is a promising reagent for cancer chemoprevention and/or treatment. "

http://www.ncbi.nlm.nih.gov/pubmed/12813174

"CONCLUSION: In a population-based, prospective cohort study in Japan, frequent miso soup and isoflavone consumption was associated with a reduced risk of breast cancer."

http://cebp.aacrjournals.org/content/16/3/538.full

"In conclusion, we found that isoflavone intake was associated with a decreased risk of localized prostate cancer."

 

 http://www.liebertonline.com/doi/abs/10.1089/cbr.1997.12.405

 

Myth: Soy foods protect against heart disease.

Truth: In some people, consumption of soy foods will lower cholesterol, but there is no evidence that lowering cholesterol improves one’s risk of having heart disease.

The truth is: ROTFLMAO!!!! Are they really that stupid to think that cholesterol would be the only factor in heart disease? In fact high cholesterol has NOTHING to do with heart disease. But soy does provide silica that keeps the artery walls flexible and free from inflammation that leads to cholesterol build up. Soy also contains sterols that lower blood pressure that would could otherwise lead to damage and cholesterol build up. And soy contains phytic acid, which they pointed out clears up iron. To be a lot more specific phytic acid has a high affinity for toxic heavy metals and free iron that can contribute to oxidative damage and plaque formation.

Myth: Soy estrogens (isoflavones) are good for you.

Truth: Soy isoflavones are phyto-endocrine disrupters. At dietary levels, they can prevent ovulation and stimulate the growth of cancer cells. Eating as little as 30 grams (about 4 tablespoons) of soy per day can result in hypothyroidism with symptoms of lethargy, constipation, weight gain and fatigue.

The real truth is: Soy helps to prevent cancer and excess estrogen issues as evidenced above. And through the same mechanism of antagonizing estrogen soy has also been shown to help maintain bone density and balance the hormones, which helps prevents the symptoms they claim. On the other hand beef and dairy are well known for causing these side effects in part due to their high estrogen levels, poor digestion and toxins they provide to the body such as uric acid.


Myth: Soy foods are safe and beneficial for women to use in their postmenopausal years.

Truth: Soy foods can stimulate the growth of estrogen-dependent tumors and cause thyroid problems. Low thyroid function is associated with difficulties in menopause.

 

The real truth is that these claims have already been proven false above and in other posts.

 

Myth: Phytoestrogens in soy foods can enhance mental ability.

Truth: A recent study found that women with the highest levels of estrogen in their blood had the lowest levels of cognitive function; In Japanese Americans tofu consumption in mid-life is associated with the occurrence of Alzheimer’s disease in later life.

 

I already addressed this here:

http://curezone.com/forums/fm.asp?i=1538298#i

 

We also have to keep in mind that soy is also a good source of lecithin, which has compounds that help with building both brain tissue and acetylcholine associated with improved memory. So did this study take in to account other factors such as other things in the diet like beef and dairy. Note that the study found women with the highest level of "estrogen" in their blood. Unlike meats and dairy soy DOES NOT raise estrogen levels. In fact as I have shown the phytoestrogens in soy ANTAGONIZE stronger estrogens such as those found in meats, dairy and that are produced by the human body. These strong estrogens from animals and produced by the body will interfere with thyroid function if not antagonized leading to a decline in cognitive function. Therefore we can conclude that soy is unlikely to have been a culprit since it does not raise estrogen levels above normal like beef and dairy can or during menopause or with certain endocrine disorders.

 

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