1st :D
niceee blogggg… will look out for soy in the future ;)
This past weekend I was hanging out with Transformation Domination LIVE speakers Craig Ballantyne and Vince DelMonte, both of whom are collectively almost as cool as me.
No really, we measured it.
Anyway, after some informal “meetings” and such, we decided to head out to dinner at a Hibachi restaurant called Benihana, home of the official worst desert ever—the pineapple boat.
I assumed from the name that it would come with at least 3 “passenger” scoops of ice cream, some whipped cream, and a cherry, but no, the pineapple boat is simply a shallow 1/8th cut of pineapple, mostly rind, for $6.
Terrible.
Fortunately, their Japanese cuisine was much better than the dessert, which leads me to this suggestion: Order the Hibachi Chicken and Steak, not the Pineapple Boat.
Just a heads up.
Nevertheless, as a diet author it’s not too often that I go out to eat without coming home with a least some ideas for blog content. This experience was no different.
You see, meals at Benihana start off with a serving of edamame, or in laymen’s terms, salted baby soy beans still in the pods. Over the past decade or so, soy has been touted by the media and certain dietary organizations as a god-like health food, which, quite frankly, it’s anything but.
Now, I’m no soy-a-phobe, and I enjoyed my serving of edamame (and some of Craig’s), but I think it may be time to expose some of soy’s dirty little secrets to those of you who may not be aware.
How do decreased testosterone levels, low sperm counts, inadequate sperm production, and impaired fertility sound? Well, that’s exactly what numerous studies have linked high consumptions of soy to.
Additionally, high soy intakes have also shown to decrease thyroid output (particularly in women) as well as HDL cholesterol (the good cholesterol), and may even increase the likelihood of birth defects and below average weights in newborns.
On a similar note, infants fed soy-based formulas may suffer from future impaired sexual and reproductive development.
These are issues that no one takes lightly; unfortunately, most are unaware of their existence.
So, how, why, huh?
The problems that arise from regular soy ingestion are mostly a result of the phytoestrogens (plant estrogens; also known as isoflavones) found in soy, specifically the isoflavones genistein and daidzein.
These isoflavones possess estrogen-like properties and when ingested act like estrogen in the body; while a little soy isn’t anything to be concerned about, considerable soy intake on a daily basis may be. And while there are authorities on both sides of the fence (as there always are), even the American Heart Association confirms that neither the safety nor efficacy of soy isoflavone supplements have been proven.
The AHA has also recently reversed their position regarding the health benefits of soy, now stating that the food has little effect on cholesterol and is unlikely to prevent heart disease.
Because of the controversy surrounding soy, my personal stance and recommendation for my clients is that soy protein intake be minimized in favor of more desirable milk protein supplements (whey and casein), and of course, other non-soy whole food protein sources.
That said, there’s no reason to become soy-phobic either; you can still enjoy some edamame with Sir Ballantyne and Playa Wince from time to time if you so choose. The sheer amount of testosterone that that Vince guy exudes is enough to make up for Craig’s plate of tofu any day.
All in all, moderation is key.
Enjoy today’s post? Have a different opinion about soy? Question? Comment? The comments section is where all the action is!
At least 20 comments and I’ll be back before you know it with more triple E (exciting, entertaining, and educational) blog content!
Talk to you in the comments section!
Joel
P.S. Yes, I don’t just make stuff up. All of my recommendations are research-based; this being no exception:
1. Atanassova N et al. Comparative Effects of Neonatal Exposure of Male Rats to Potent and Weak (Environmental) Estrogens on Spermatogenesis at Puberty and the Relationship to Adult Testis Size and Fertility: Evidence for Stimulatory Effects of Low Estrogen Levels. Endocrinology. 2000 Vol. 141, No. 10.
2. Chorazy PA et al. Persistent hypothyroidism in an infant receiving a soy formula: case report and review of the literature. Pediatrics. 1995 Jul: 96 (1 Pt 1): 148-50.
3. Irvine CHG et al. Phytoestrogens in soy-based infant foods: concentrations, daily intake, and possible biological effects. Proc Soc Exp Biol Med. 1998 Mar; 217 (3): 247-53.
4. Lohrke B et al. Activation of skeletal muscle protein breakdown following consumption of soybean protein in pigs. Br J Nutr. 2001 Apr; 85 (4): 447-57.
5. Nagata C et al. Inverse association of soy product intake with serum androgen and estrogen concentrations in Japanese men. Nutr Cancer. 2000; 36 (1): 14-8.
6. Newbold RR et al. Uterine Adenocarcinoma in Mice Treated Neonatally with Genistein. Cancer Research. 2001; 61, 4325-4328.
7. Pollard M et al. Prevention of spontaneous prostate-related cancer in Lobund-Wistar rats by soy protein isolate/isoflavone diet. Prostate. 2000 Oct 1; 45 (2): 101-5.
8. Strauss L et al. Genistein exerts estrogen-like effects in male mouse reproductive tract. Mol Cell Endocrinol. 1998 Sep 25; 144 (1-2): 83-93.
9. Weber KS et al. Dietary soy-phytoestrogens decrease testosterone levels and prostate weight without altering LH, prostate 5alpha-reductase or testicular steroidogenic acute regulatory peptide levels in adult male Sprague-Dawley rats. J Endocrinol. 2001 Sep; 170 (3): 591-9.
10. Strauss et al. Genistein exerts estrogen-like effects in male mouse reproductive tract, Mol Cell Endocrinol. 1998 Sep 25;144(1-2);83-93.
11. Casanova M et al. Developmental effects of dietary phytoestrogens in Sprague-Dawley rats and interactions of genistein and diadzein with rat estrogen receptors alpha and beta in vitro. Toxicol Sci. 1999 Oct;51(2):236-44
12. Kumi-Diaka J et al. Cytotoxic potential of the phytochemical genistein isoflavone and certain environmental chemical compounds on testicular cells. Biol Cell. 1999 Sep;91 (7): 515-23.
13. Anderson et al. Effect of various genotoxins and reproductive toxins in human lymphocytes and sperm in Comet assay. Teratog Carcinog Mutagen. 1997;17(1);29-43.
14. Zhong et al. Effects of dietary supplement of soy protein isolate and low fat diet on prostate cancer. FASEB J 2000;14(4):a531.11.
15. Nagata C et al. Inverse association of soy product intake with serum androgen and estrogen concentrations in Japanese men. Nutr Cancer 2000;36(1):14-8.
16. Habito RC et al. Effects of replacing meat with soyabean in the diet on sex hormone concentrations in healthy adult males. Br J Nutr 2000 Oct;84(4):557-63.
17. Klein M et al. Energy metabolism and thyroid hormone levels of growing rats in response to different dietary proteins – soy or casein. Arch Tierernahr 2000;53(2):99-125.
18. Flynn KM et al. Effects of genistein exposure on sexually dimorphic behaviors in rats. Toxicol Sci 2000 Jun;55(2):311-9.
19. Atanassova N et al. Comparative effects of neonatal exposure of male rats to potent and weak (environmental) estrogens on spermatogenesis at puberty and the relationship to adult testis size and fertility: evidence for stimulatory effects of low estrogen levels. Endocrinology 2000 Oct;141(10):3898-907.
20. Whitten PL et al. Phytoestrogen influences on the development of behavior and gonadotropin function. Proc Soc Exp Biol Med 1995 Jan;208(1):82-6
21. Kumi-Diaka J, et al. Cytotoxic potential of the phytochemical genistein isoflavone (4′,5′,7-trihydroxyisoflavone) and certain environmental chemical compounds on testicular cells. Biol Cell 1999 Sep;91(7):515-23
22. Ashton E, Ball M. Effects of soy as tofu vs meat on lipoprotein concentrations. Eur J Clin Nutr 2000 Jan;54(1):14-9
23. Madani S, et al. Dietary protein level and origin (casein and highly purified soybean protein) affect hepatic storage, plasma lipid transport, and antioxidative defense status in the rat. Nutrition 2000 May;16(5):368-75.
24. Cline JM. Effects of dietary isoflavone aglycones on the reproductive tract of male and female mice. Toxicol Pathol. 2004 Jan-Feb;32(1):91-9.
25. Dillingham BL et al. Soy protein isolates of varying isoflavone content exert minor effects on serum reproductive hormones in healthy young men. J Nutr. 2005 Mar;135(3):584-91.
26. Sacks FM et al: American Heart Association Nutrition Committee. Soy protein, isoflavones, and cardiovascular health: an American Heart Association Science Advisory for professionals from the Nutrition Committee. Circulation. 2006 Feb 21;113(7):1034-44. Epub 2006 Jan 17.
27. Sirtori CR et al. Phytoestrogens: end of a tale? Ann Med. 2005;37(6):423-38. Review.
1st :D
niceee blogggg… will look out for soy in the future ;)
Phew! I remember reading that Soy protein aides estrogen synthesis and thus unfit for large consumption by men. It sounds equally dangerous to women and children…
I guess this implies ‘more research required’.
Thanks for this enlightening article!
So, I knew a bit about soy being bad but now I got a more detailed picture, which is good.
I was a bit concerned when I started noticing soy lecithin used in so many products, such as protein powders. So since the content is smal, I shouldn’t be concerned with its presence at all?
What about small contents of soy oil (I noticed the pre-minced garlic I bought had that – ugh, can’t they just put the garlic in the pot and be done with it?!)
Thanks!
Mat
While having organic edamame occasionally may be okay, I would like to caution people about NON-organic soy, as well as processed soy products. Any benefits that may be derived from traditional soy, are not going to be found in overly processed soy products (soy protein powders, etc.). It’s the same as whole grains vs. processed white flour. The more a food is processed, it becomes less of a food & the nutrients it originally possessed are destroyed & then to make up for it, synthetic vitamins & minerals are added back. Also, soy is one of the main crops that are genetically modified (GM/GMO), which is an even bigger concern. Soy, corn, canola & cotton crops are predominantly GMO unless certified organic. And sugar (sugar beets) is another popular crop that can be GMO. Check out: http://www.organicconsumers.org/ for more information on GMO crops.
The reason no-one knows about these problems is simple; The Billion-dollar lobbying machines of the Agribusiness giants coupled with the Mainstream Media (often controlled at least in part by the “food” conglomerates). It is not in their interest for you to be told the truth, or anything like it.
It is a myth that unfermented soy products (Tofu, Endamame etc) are consumed in large quantities in the far east. The most I’ve ever seen in a real Japanese restaurant is a tiny sliver of Tofu in a bowl of Miso soup. Endamame themselves are mostly considered inedible in Japan. The only historic use for large quantities of Tofu in the Far East was to lower the libido of Buddhist monks, due to the high phytoestrogen content! Race ipsa loquitur!
Something Joel hasn’t mentioned which should definitely put anyone off soy consumption, is that pretty much all US-grown soy is now GM and it is (I’m told, not being American myself) pretty impossible to verify that a sample isn’t GM due to the lobbying against truthful food labels. Roundup-Ready Soy should be a big concern for anyone eating soy, as the only definitive studies into the safety of GM crops have been published by – you guessed it – the companies promoting and producing these products. As the GM technology is patented, it is nigh-on impossible for any truly independent testing to be carried out or published. What is being said now though is that the bacterial genes used in the GM processes can become incorporated into your own gut bacteria when the products are eaten, the end result being that your own body produces organophosphate weedkiller and poisons you from the inside out! One of the side effects of GM “food” consumption is thought by many to be the mysterious Morgellon’s Disease, which is on the increase and was hardly ever reported before the GM “revolution.”
A very informative if somewhat scary read for anyone interested in protecting their health from the fraudulent GM technologies is William F Engdahl’s “Seeds of Destruction.”
It is an interesting position on Soy that people are now taking. For someone who has used soy and still uses it, I am a little concerned, and this is not the first time I have come across this information about soy. However, in relation to casein, not long ago, a medical doctor came to our church group, and took a talk to a group of us guys on mens health.
Most, or probably all of us, due to our religious affiliation to the Adventist church, are vegetarian. I’m not sure how many of us use soy though. I get the impression that most vegetarians in the SDA community are lacto-ovo-vegetarian, [vegetarians that use eggs and milk products].
I use Soy milk daily though, with cereal breakfast, and at other meals. I also mix it with protein powder that is milk based. [Yes, I know that does not make sense, but the combination does taste really great].
I seem to have come over conflicting opinions though, on the internet, in relation to soy, and bodybuilding, and I did do a search on testosterone levels, and if soy really does affect it. As for myself, I am not really having that much problem in putting muscle on.
I did bring this topic of soy up and the questions about it relating to testosterone etc, with the doctor giving the talk, and he did make a comment that we just don’t go overboard with soy – in other words – balance.
A few other areas of mens health were touched on. He then presented us with a book called the “China Study”. To my surprise, in this book “casein” was shown to cause cancer in rats/mice [can’t remember which animals were used]. And the book emphasized a plant based diet. [which would mean not using eggs and milk products in a vegetarian diet]. I use a protein powder that is based on whey, and also has casein in it -that was what made me really sit up and take notice of what the doctor was saying.
Casein caused cancer to the animals in the study – this is a real concern to me now. I am looking at other plant based protein, and I did come across something called Sun Warrior Brown Rice protein which looks promising.
I also came across a comment by Jason Farrugia in his muscle building course, in relation to his knowledge of the China Study, and from what I remember, he also was recommending a plant based diet.
Does anybody have any more knowledge or research about the soy topic?
Also any more on the China Study? It would be good to know more if anyone can share.
Thanks for posting an interesting topic Joel. I really enjoy the many topics you have posted about.
best,
Steve Martin
Queensland
Australia.
Wow, what an article.
I read that soy was good at preventing prostrate cancer a while back and promptly added soy milk for my husbands use on his cereal in the morning as he has a prostate problem but not cancer.
Shall have to now explain to him that I shall nolonger be buying it after a struggle to start in the first place.
Just think I could have been making matters worse.
Thanks so much for the advise.
Yvonne UK
Hi Joel,
How do I know if I’ve been ingesting soy after all there years, it’s like sugar, it appears to be in everything we eat? I also thought that the type of soy that we’re accustomed to eating, wasn’t any good and that the real thing was actually much better for you and eatin regularly.
Finally, something worth saying :). I knew there was a reason soy milk tastes that bad! And I think I read somewhere that the production process of soy products destroys what good qualities the soybean ever could have had.
Wouldn’t touch it with a barge pole. I like my testosterone just how it is thank you.
It is not only the research which is frightening. I also find there is a head in the sand attitude by a lot of vegetarians(my wife included). I don’t know if it is all the slanted advertising and reporting or the almost religious belief in soy based foods but any suggestion it is not good is taken as a personal criticism.
This is why being very selective in what you eat is essential. To much of the food supply is being contamiatied with chemicals, overly processed and GM. Your health depends on quality food. The purer the food the better. Organic and knowing the source of where your food comes from is very important. Yours in health.
I had no clue that soy was capable of that… thank you for this info!
I found out the hard way that soy milk depresses thyroid function – so I quit drinking it & now drink lactose-free milk. Fermented soy products are considered less harmful, but I’ve not eaten any recently.
As for Colin Campbell, he is a vegan bigot & a food Nazi. The main difference between the diets of people in rural China & the western world is WHEAT. Nobody in China eats it! Now I object to anyone telling me what I should eat until they have read “Eat Right 4 You Blood Type” by Peter J D’Adamo.
Unfortunately soy is an additive found in all kinds of foods. Its become llike sugar. Its everywhere. Most protein bars in fact are made with soy. Even if you made a conscious effort to minimize your soy intake, it’d still be there.
I’ve been using Soy Milk in cereal and oatmeal for more then 10 years 2-3 times a week. I have not noticed any side affects. I am confused. Should I completely exclude Soy Milk from my diet?
This is very interesting. I am newly pregnant, picked up a cook about nutrition recently (which has been a topic of discussion inour family all year due to some health problems I have dealt with). I have read many this year and all seem to say the same things about milk. The Casein protein is simply bad for us and our bodies don’t digest it right. Not only did it cause cancer growth in studies (practially everything does) but it promoted and aided growth of all stages. I also read that by age four virtually every person quits makin the enzyme used to digest milk. (we are the only species on earth that drinks another animal’s breastmilk. And baby cows gain undreds of punds their first year. The natural growth homones in the milk are extremely high, and then they put in Bovine Growth Hormone and TONS of antibiotics. There is so much junk in milk it’s ridiculous. I think it’s only like that here in America, but I also read that we drink more milk than almost any other nation, and we have among the weakest bones, most fractures, osteoporosis, etc. And the only countries worse off were the ones that drank more milk.) All in all, milk is definitely not good for you. I read that soy protein is good if it’s organic and in moderation. I also read that most milk studies have been done on humans and most soy studies have been one on animals, and may have different results if done on humans. I also wner how many of these studies are done with organic milk or organic soy? During and even before all this research, our family cut back on dairy, using only organic yogurt and powdered milk for cooking, and my asthma almost disappeared. Also, my three-year-old boy has IBS-type symptoms, and tummy aches a lot, and we finally linked it to the milk. Now that he’s using minimal milk, his bowels are normal. We use a lot of rice and almond milk too. But we do some smoothies and cereal with the soy because it tastes beter. And we love edamame, although we don’t overdo it.We don’t eat more than a couple servings of meat a week. Until it’s out, then it’s gone. So we haven’t bought any soy-based products yet, but we are on the lookout for a good tasting alternative to meat to have here and there.We want to do what’s healthiest and best for our family, and I agree that all things in moderation is the biggest factor with soy (among many other things), but I wonder why all these studies are on soy and there’s nothing on milk? I have personally seen major health improvements in our family since cutting milk out.
What are some good alternatives for someone who doesn’t want to do milk or meat proteins?
Hey Joel,
I became aware of the soy/estrogen connection years ago and have avoided it ever since. The last thing I need is a food product that encourages estrogen production. I’m always looking for natural ways to boost testosterone production. How about a blog about that next? (Or does that exclude too many of your readers?)
Bob
Joel,
Timely and interesting article. I just visited my Dr for checkup 2 weeks ago. I am going through an induced menopause due to cancer therapy , and I asked my Dr about some of the “natural” herbs to take to help with the night sweats and other symptoms. He repeated to me exactly what you say in this article, that these contain soy, which will raise estrogen. For me, definately not good,as some breast cancers are estrogen receptive and therefore, we do not need increased estrogen, so limit the soy. Thank you for your study of this. This was information I was totaly unaware of.
@Roman – Here’s an article about it from Men’s Health. I read about this a few months ago, when it was published: http://www.menshealth.com/bestfoods/food_features/Is_This_the_Most_Dangerous_Food_for_Men.php
It’s a very interesting read. It’s also about a guy that had high Soy intake and side affects he was having, without even knowing they were side affects.
Personally, I don’t see the need for all these substitutes….Milk and Whey work perfectly well and taste great. I avoid heavy Soy due to the recent potential side affects and simply because I think it’s stupid to substitute milk.
The Ploy of Soy! There marketing is fantastic but the actual science behind the “health” of soy is nothing short of lies. Soy Milk and all Soy products are in direct competition with another so called “health” food cow’s milk. Not anything good to say about cow’s milk either unless it’s RAW, unpasturized and un-homogenized. If you havn’t noticed Soy is in everything! If it’s processed and has a ingredients list than it’s almost a guarantee that soy or a soy derivitive is in there. Why? Because it’s cheap! Same thing with corn, corn is in everything as well. There is a lot of profit to be made off these crops which is why they are heavily pushed by the Agriculture industry and the FDA… Why do you think the majority of the Univ Dietetic programs are funded by GENERAL MILLS? Now you no why you are told to eat 9-11 servings of grain products a day! The other reason SOY is so big is because it has no cholesterol and is low in fat. Plenty of studies have shown that the chinese have a lower risk of heart disease and incorporate soy into there diets. What no one tells you is that the Chinese have a high rate of Colon cancer, just wanted to throw that in! Statistics are a mother! A study can show what ever they want as long as they know what outcome they want the study to have… This is important for you to know when you here that studies are “scientific”. Whenever you see “studies show” follow the money trail, a conflict of interest won’t be far behind. “They” have done the same thing with the Lipid Hypothesis Theory. Basically, take the Gov and doctors advice with a grain of salt and don’t ever rely on anyone but yourself when it comes to your health. It’s sad to say but you’re really on your own.
Do Soy beans have nipples? NO! So how can they produce milk? The Chinese don’t drink Soy Milk? They also don’t eat Soy hot dogs, Tofurkey, Soy Ice Cream and any other processed crap labeled as a health food because it has soy in it… The Chinese use Soy as a flavor enhancer mostly added to soups for flavoring. The Processed food industry left that part out when they claim that the Chinese lower rate of heart disease comes from there high consumption of Soy. Also, when the Chinese do eat Soy, it is the Lacto-Fermented form. Soy prepared in this manner actually does have some health benifits.
If you’re looking for Milk alternatives I would suggest Goat, Coconut, Almond or Hemp Milk. I know Three of these four don’t have nipples either but they also are not nearly as damaging than Soy…
Thanks for this info. There’s lots of confusion out there about soy and this helps clarify things.
Soy seems to be in about all of the protein bars….so what CAN we eat For GOD’S SAKE! This is getting more and more confusing. Could you also focus in or have a focus topic with some of us older lifters (like 55 +). I still go at it pretty hard but now need to know what stuff (food and vitamins) are going to do me the most good. Oh, also thanks for all the topics you do cover…keeps me searching for what is the best available.
I hate the taste of most soy products, and consume mostly animal protiens (and fats). People do lose the ability to digest milk early in life, but so do most animals (hence the new “cat milk” in shops). Inability to digest milk is mostly from low milk intake. If you consume dairy products frequently your body will produce the enzymes necessary to digest it (not always but in most cases). The major problem with milk is the artificial hormones added. That said, soy which is ususally GM and which produces its own phytoestrogens is much worse. I have a friend who consumed a lot of soy milk (and other products). On my advice, he swapped most of his soy products for similar animal products/protiens and went from 340 lbs to 210 in about 18 months with no other major changes to his diet!
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