Showing posts with label soy. Show all posts
Showing posts with label soy. Show all posts

Friday, May 04, 2012

Natural Controversies: Free Webinar May 15th at 7 PM (CT)

I'm giving a free public webinar May 15th 7 pm CT on Natural Controversies. Register here:  http://americannutritionassociation.org/civicrm/event/info?reset=1&id=32 and use this code for free registration as my guest: SPKGST5629

We’ve all seen contradictory information about natural health products. Sensational reports may depict certain ones as always good or bad for us, but these are often based on inaccurate information. A combination of ignorance, bias, and other errors contribute to this mass confusion.

Take a look at the scientific data that reveals the truth behind some Natural Controversies:


  • What are some of the dieting secrets that work long term?
  • Some experts claim that all sugars are the same to the body; others claim that certain sweeteners like fructose are bad for you. What’s good and bad about fructose and how does it work in the body?
  • Aren’t the vitamins and minerals in food better for us than the forms commonly used in dietary supplements?
  • A few years ago, doctors routinely warned us against taking high doses of vitamin D but now it’s the latest thing.
    • How much vitamin D is considered healthy?
    • What are the safety limits?
    • What is the difference between its forms, D-2 and D-3?
  • Some fish oils are in a triglyceride form while others are in a form called ethyl esters. What are the differences and benefits of each form?
  • Soy foods are highly controversial; with some health gurus warning against its use and others promoting it as an important health food. What does science tell us about the safety of soy foods versus their potential benefits?

• Vitamin E had been touted as important to cardiovascular health until recent studies questioned its safety. Is it safe, at what levels, and why is there so much controversy over this basic essential nutrient?

• Are stearates hydrogenated? Bad for us?

Tuesday, August 30, 2011

Perimenopause/Menopause Interview notes

Perimenopause is the time period where the body’s hormone balance is changing; menopause actually marks the one-year anniversary of the cessation of menstrual cycles (menstruation). Most menopause formulas are actually targeted at perimenopause symptoms.

The recent clinical evidence for, and availability of, products that don’t contain soy, isoflavones, or phytoestrogens should greatly help those who won’t or can’t use products containing those components. This now opens the perimenopause category to those who were previously shut out.

This is a strong category but with a lot of competition among products and claims that inevitably leads to some confusion; not only among consumers but for some store personnel, as well. Product information from manufacturers can either clarify or confuse, depending on the message that they’re trying to send: are they trying to tout their own product as better than everyone else’s, or are they accurately representing the science and trying to provide real consumer choice?


Vitex (Vitex agnus castus), or chaste tree berry, contains small amounts of Agnusides, the active component of chaste berry. Chaste berry extract has been researched to corroborate traditional usage for supporting healthy female hormonal levels during menopause.

Dong Quai (Angelica sinensis) root is a traditional herb for female hormonal support, but has not been historically used for perimenopause/menopause.

Ipriflavone (7-isopropoxy-isoflavone) is a natural-identical soy-free isoflavone (bioflavonoid) that supports bone health, helps maintain healthy bone density, and supports post-menopausal calcium metabolism.

Natural Progesterone Skin Cream typically provides 20 mg of Natural Progesterone USP per use. Look for products with no artificial colors or fragrances that are paraben-free. Synthetic progesterone is not nature-identical.

Black Cohosh (Cimicifuga racemosa) is an herb that has been traditionally used by Native Americans to alleviate the symptoms of menopause and other female complaints.

Red Clover (Trifolium pratense) is an herb particularly rich in biologically active compounds called phytoestrogens that are recognized for their role in the support of healthy estrogen levels.

Soy Isoflavones are naturally occurring phytoestrogen plant compounds (Genistein, Daidzein and Glycitein) that are particularly concentrated in soybeans and which support high or low estrogen levels.

Pharmaceutical Drugs, including synthetic forms of female hormones, have side effects that may contraindicate their use since they are isolated synthetic substances, so many women prefer to avoid them. Since the normal change of life is not a disease state, the use of traditional natural substances to manage health makes sense to most people.


Women need to carefully review any label cautions and interactions, as well as the usage suggestions, to avoid any known interactions with medications. Even if no interactions have been noted, caution should be used when adding any new substance, however natural, to a medication regime.

People often mistakenly think that all estrogen compounds are alike. However, phytoestrogens are plant-based food compounds found in virtually all legumes that are about 1,000 times weaker than the usual circulating body-produced estrogen forms. That difference and the source makes plant estrogens much safer. Even soy isoflavones, which are phytoestrogens, have some key differences from endogenous estrogens formed in the body: much like cruciferous vegetables, soy isoflavones may actually prevent the conversion of estrogens into harmful forms (like 16α-hydroxyestrone), promote their breakdown by Phase II detoxification, and increase their excretion in the urine.

Another myth is that symptoms of perimenopause can all be treated the same. Everyone’s hormone levels are unique and complicated, so not every product will work for every person. Some trial and error may be required, and some consumers elect to have their hormone levels checked to help them choose which products are most likely to be right for them.

Thursday, January 27, 2011

Dear reader,

I've had comments from readers wanting me to look at or debate specific studies that are perhaps contradictory to ones that I cited. I sometimes think that this not really productive; in the sense of 'why debate how much phytoestrogens are in foods?' when the questioner's intention seems be to help people avoid these benign/beneficial substances which are shown (at the highest levels of intake!) to prevent cancer (lowers risk of certain cancers by about 30%) and heart disease while blocking the truly harmful xenoestrogens (external sources like agricultural and industrial chemicals or plastics) from docking to cellular receptors.

And I don't really want to publish people's comments that include links that send people to other websites; especially if they are not authoritative and non-commercial. In most cases I provide my own references and will happily publish relevant comments that avoid such links; though I of course reserve the right to debate these comments with a follow up comment of my own if I disagree with the point(s) being made.

I also don't want to debate the merits of whatever "expert" someone wants to throw at me because we all know that there are plenty of voices of all levels of credibility on the Internet; many do not list references (or data-dump bogus (irrelevant or unsupportive) ones as soy critics often do), evidently preferring to hear themselves pontificate rather than to review topics from a real scientific curiosity that allows for minds to expand and change. Even the real experts often disagree, since that is the nature of the scientific method; though I have seen the rare term "proven" applied to research on soy's benefits for heart health.

I believe that YOU are smart enough to compare arguments and consider the merits of everyone's "facts" and opinions. As you see from the published comments from readers on my own blog, I do respect, read, and reply to your comments and even appreciate a "healthy" debate on topics that are also important to you. While no one is perfect (especially me), at least I aspire to know my limitations and try to do the right thing. Hopefully, you will carefully read my blog and consider me to be a trusted source providing "Honest Nutrition". Thanks for letting me share this page with you!

Thursday, December 16, 2010

Mercola, Weston Price wrong on Soy "dangers"

I regularly see research on soy and the vast majority of research papers prove the health benefits of soy. Based on the body of science and the errors evident in his "Facts", what Dr. Mercola has stated is undocumented, unreferenced bull recycled from Weston Price.

All legumes contain significant levels of phytoestrogens; why is soy singled out for this abuse using cherry-picked out-of-context "facts" that aren't really backed them up when the research is reviewed. Do you ever hear such slanders against the #2 source of phytoestrogens (pinto beans)?

In fact, many of the negative studies cited come from the animal feed industry and refer to raw defatted soy meal, the pulp left over after extracting soybean oil. This is not what humans eat! We aren't fed raw defatted soy meal as the major protein source in our diet, and many of the negative issues with raw dried soybeans disappear with proper food preparation (i.e., cooking). They also don't apply to edamame (raw soybean pods with the beans inside), since some of these "anti-nutrient" factors form during drying and are removed during cooking (except for genetically engineered soy that contains exceptionally heat-resistant anti-nutrient compounds).

Here are some actual facts about soy (in contrast to the Mercola/Weston Price data dump of uncritically collected studies); and I have the studies to back this up:

 
  • Phytates are common in grains, less in legumes; the supplement IP-6 is this exact compound, useful to stimulate NK cells and immunity
  • Trypsin inhibitors are only a problem in raw soy flour and GMO soy products, not the typical uses of non-GMO soy
  • Phytoestrogens such as isoflavones are not endocrine disruptors, this is nonsense; have you ever heard of these problems with pinto beans, the #2 most abundant food source and a major component of the Mexican diet? Of course not.
  • Soy, like cruciferous vegetablles, only affects thyroid function if one is iodine deficient and the addition of iodine to the diet corrects this symptom. The real problem is a nutrient deficiency.
  • Most plant foods are known to be poor sources of bioavailable B-12, not just soy, and this is common knowledge so why single soy out? Bias?
  • D-2 is a natural compound found in the food supply and is neither toxic nor a synthetic form; all vitamin D is produced by chemical synthesis, whether in the body or in a lab, but the forms of D-2 and D-3 utilized in supplements and food fortification are both nature-identical natural forms synthesized in labs.
  • Most soy protein isolate is not denatured; by the way, another term for denaturing is "digestion" and this is good unless you need intact proteins from food (as in whey protein isolate's valuable immunoglobulins).
  • All proteins when digested produce free glutamates; this is natural. Only susceptible people who have had severe chemical exposure or are low in protective nutrients like antioxidants and magnesium suffer from this. I have spoken with and attended lectures by Russ Blaylock for about 20 years and am well versed in this mechanism and its causes and solutions.
  • Soy proteins do not test high in heavy metals; rice protein is actually far higher in actual tests at parts-per-billion detection levels.
  • Asians consume far more soy products than is claimed by your sources; the typical isolflavone content of the diet there is established to be about 50 mg daily, the amount found in a couple ounces of soy protein at 90% strength, which represents several ounces of unconcentrated soy at about 30% protein.
  • Soy is not carcinogenic; review studies confirm that soy protein isolate, not fermented soy, has been proven to reduce cancer rates from breast, prostate, and colorectal cancers by about 30%.
  • Soy upregulates Phase 2 liver detoxification, much like cruciferous vegetables, and is actually a detox aid rather than a source of toxins.
  • Long term studies of infants fed soy formula find no differences in age of puberty, sexual maturity, or other hormonal measures; soy is 'implicated" only by those unwilling to openmindedly review the research to confirm or prove false their wild theories.
  • PS, I was in China recently and they eat plenty of tofu and edamame, both unfermented soy foods, in greater quantities than fermented soy.
Some of Weston A. Price Foundation's citations listed as "evidence" of soy's "toxicity" include these titles that obviously don't fit the negative label; that's why I characterize their list as a "data dump":

 
  • "Salt poisoning due to ingestion of soy sauce." (How does this prove that non-fermented soy is toxic?)
  • "Hypothesized health benefits of soybean isoflavones." (A study that is positive of soy's health benefits)
  • "Rhinitis and dermatitis caused by exotic woods." (This is a non-soy herb: Pterocarpus soyauxii)
  • "A nutritional comparison of rapeseed oil and soybean oil."
  • "[Concerning the absence of goitrogenic factors in soybean oil for cooking.]" (Exonerates soybean oil from thyroid issues)
  • "Eastern black nightshade: An increasing concern for soybean and forage producers." (A farming issue, not a nutritional one)
  • "Medicinal Plants of lndia and Pakistan." (Actually refers to a non-soy plant: Indian red wood tree, Soymida febrifuga Adr. Juss.)

Wednesday, November 03, 2010

Women's Health Interview, October 2010

Women’s biggest health challenges tend to be related to three general areas: hormonal health (including PMS and menopause issues), pregnancy, and maintaining health as they age (bone health and avoiding chronic degenerative conditions).

Women do seem to suffer more from certain problems related to inflammatory challenges and hormonal changes. Because of their regular, or sometimes irregular hormonal cycles, there are both advantages and disadvantages compared with men; at least until menopause tends to even the field regarding heart disease, for example. Regular menstruation lowers iron stores, reducing health problems related to oxidative and microbial challenges from free radicals that can be elevated due to the actions of uncontrolled free iron. Because of this, premenopausal women tend to have lower levels of heart disease than either post-menopausal women or adult men.

Also, because of their greater reliance on three major forms of natural estrogen as a dominant hormone complex, women seem to have greater risks of getting hormonal abnormalities and elevated cancer rates related to breast, endometrial tissues, etc. There are numerous factors involved, but oxidation of estrogens into more dangerous forms has been suggested as a major contributor to those risks. The fact that certain volatile plastics containing free BPA and specific other chemicals are known to be strong estrogen mimics makes exposure to those substances very dangerous to women, in particular.

Men do share some of those risks; for example, some estrogenic agricultural chemicals widely used on lawns, golf courses, and farms (herbicides, pesticides) are suggested to elevate the risk of prostate abnormalities. But men’s consequences tend to be more subtle and drawn out than the very real risks that women face from both these exposures and lack of protective nutrients such as a range of antioxidants and detoxification aids such as silymarin, broccoli and cruciferous vegetable consumption, and various liver supporting herbs and nutrients. The regular use of NSAID anti-inflammatory drugs – often utilized for PMS and other aches and pains – is associated with side effects that similar-acting nutrients and herbs lack: negative effects include reducing availability of some important nutrients, upregulation of pain triggers, negative effects on mood, stomach and GI problems, and degenerative cascades. Bless their hearts; many women don’t have it easy.

Women who eat enough legumes, flax seeds, and other sources of plant estrogens (phytoestrogens) tend to have more manageable menstrual cycles. Certain signs, like menstrual-related migraine headaches, indicate a deficiency of adequate natural progesterone levels that can be helped either by supplying the herb Vitex (chaste berry) if premenopausal or by applying natural progesterone cream to the skin. Certain herbal formulas and isoflavones from foods are utilized to preserve healthy and more comfortable menstrual cycles.

One thing that women should do to prepare for menopause is to maintain their bone mass by exercise and getting adequate supplies of not only calcium but also vitamins C, D, and K, magnesium, boron, and other bone support nutrients. The value of an alkalinizing whole food diet is of primary importance. The presence in the diet of legumes and flax seeds eases the transition to menopause, which is a normal part of a women’s life cycle.

The existence of biofilms informs our understanding of areas where bacteria and microbes can gown in the body. The fact that certain organisms – helpful or harmful – can create a mass that is layered like chainmail to resist removal is a powerful visual image that aids in understanding why it takes so long to effect changes in our inner ecology. Ideally, we have friendly probiotic bacteria coating our GI and urinary tracts to crowd out undesirable organisms. In fact, it was recently discovered that the purpose of the appendix was to serve as a reservoir of such probiotics to help “reboot” the system in case of problems that kill off the good bacteria; of course, with antibiotics, high sugar diets, stress, and other factors lowering the vitality of our probiotics, some people will grow the nasty stuff in their appendixes, presenting a serious health risk. The ability of Candida albicans live yeast and other organisms to overgrow at undesirable levels at the expense of more beneficial probiotic microbes means that some of our layered biomass colonies are undesirable and difficult to remove quickly. D-Mannose and cranberry (blueberries, too) tend to help prevent the spread of these colonies by preventing undesirable particles from adhering to the urinary tract walls but don’t kill off existing colonies. Still, these natural substances are helpful in curtailing their spread while other strategies are implemented, such as low sugar intake or even pharmaceuticals.

To support breast health it is wise to avoid BPA plastics, don’t microwave food in plastic, don’t consume agricultural chemicals on food, eat a plant-based diet providing antioxidant-rich produce, and eat plenty of broccoli, cruciferous vegetables, and non-GMO legumes, especially soy.

Various experts warn us against eating soy, with the suggestion that plant estrogens are dangerous. I have investigated the scientific literature to determine the risk and found that the scientific consensus is that there is no risk for healthy women, and even no indication that soy foods are unsafe for women who have had breast cancer! That is amazing when you consider all of the negative theories being hyped on the Internet. Soy prevents oxidation and conversion of estrogen into its more dangerous forms, aids in liver metabolism of these hormones and various toxins, and has been “proven” to protect against heart disease (soy actually has an FDA-approved qualified health claim related to this benefit).