Skip to main content

Soy May Be Dangerous To Your Health!

C. E. Clark believes it is her duty and responsibility as a researcher and writer to bring important information to her readers.

It seems like most people are trying their best these days to live as healthful a life as possible. Nearly everyone has heard about the many benefits of soy. According to WebMD, soy is linked to a lower risk of breast and endometrial cancers, but this belief is being challenged by some health and medical practitioners.

WebMD reports some advantages to the intake of soy products in regard to menopausal symptoms, and that soy can be beneficial in cognitive function to women under age 65, but has no advantage for women over 65. The Mayo Clinic agrees with this report.

The Cleveland Clinic, considered America’s top heart hospital, disagrees with the Mayo Clinic and WebMD when it comes to heart health and soy products. The Cleveland Clinic recommends soy products for boosting a person’s heart health. Clearly there is controversy among health and medical specialists.




Many Nutritionists Seem To Agree -- With Each Other, But Not With The Medical Community

Karen Brimeyer, is a nutritionist and functional medicine practitioner who specializes in genetic nutrition, and balancing hormones. When preparing for a wellness class she was going to teach, Brimeyer toured a conventional grocery store in order to have suggestions ready for her students as to what would be good food choices from their regular grocery stores. Brimeyer normally recommends farmer’s markets, health food stores, and food co-ops.

Brimeyer writes that she was all but in a panic when she could find nothing at all in the regular grocery store that she could recommend to her students. Everything she picked up had ingredients that were unhealthful, especially soy!

Roz Burnham, a certified metabolic nutritionist, also claims that unfermented soy products are dangerous to your health. She says soy derived products now include 60% of the processed food products on your grocery store shelves. To see an extensive list of all the dangerous substances Burnham says are contained in soybean products, click here.

The Most Toxic Food that You Should Stop Eating In Any Form NOW!

Steven Gundry, MD, is one of the world's most celebrated heart surgeons and author of the New York Times Best Seller books "The Plant Paradox,” and “Dr. Gundry’s Diet Evolution.”. He is Director of the International Heart & Lung Institute in Palm Springs, CA, and the founder of the Center for Restorative Medicine in Palm Springs & in Santa Barbara, CA.

Doctor Gundry says the number one most toxic so-called superfood that people should avoid in any form is soy. “Soy product are anything but healthy. Food manufacturers have deceived people regarding the health benefits of soy.”

Doctor Gundry says, “Soy products are not the healthy food that you might think they are. They cause digestive problems, immune system break downs, cognitive decline, some cancers, heart disease, and several other problems. [Dr. Gundry] also found that soy practically drains the energy from the thyroid gland, leaving that person slow and sluggish on top of several other negative effects.” (

Steven Gundry, MD, is one of the world's most celebrated heart surgeons and author of the New York Times Best Seller books "The Plant Paradox,” and “Dr. Gundry’s Diet Evolution.”. He is Director of the International Heart & Lung Institute in Palm Springs, CA, and the founder of the Center for Restorative Medicine in Palm Springs & in Santa Barbara, CA.

Doctor Gundry says the number one most toxic so-called superfood that people should avoid in any form is soy. “Soy product are anything but healthy. Food manufacturers have deceived people regarding the health benefits of soy.”

Doctor Gundry says, “Soy products are not the healthy food that you might think they are. They cause digestive problems, immune system break downs, cognitive decline, some cancers, heart disease, and several other problems. [Dr. Gundry] also found that soy practically drains the energy from the thyroid gland, leaving that person slow and sluggish on top of several other negative effects.” (

Dr. Steven Gundry explains in less than 3 minutes why you should avoid soy.

Doctor Steven Gundry on Soy and Other Plants

Why Is Soy Included In So Many Processed Foods?

Soy is easy and inexpensive to grow – also, easy to process. Brimeyer says, however, that soy is a long way from being the super food it is often portrayed to be. In fact, it can be toxic to both animals and humans if not prepared correctly. Soy is often used as a filler in processed meat products, and it is an ingredient in soups, bakery goods, margarines, salad dressings and more.

The Cleveland Clinic recommends 4 soy foods to improve heart health: soymilk, soy cheese, soy nuts, and soy tofu.

What Is The Correct Way To Prepare Soy So It Will Not Be Toxic To Humans?

Brimeyer says: “The only properly prepared soy is fermented soy; Natto, Miso, Tamari and tempheh. Soy is linked to autoimmune thyroid disease, infertility, female hormone imbalances, breast cancer, hypothyroidism and thyroid cancer, just to name a few. I can’t tell you how many clients I see with thyroid disease.” (So you may see here that Ms. Brimeyer disagrees with WebMD so far as soy being helpful in lowering the risk of breast cancer is concerned.)

The Food Renegade website seems to be in agreement with Karen Brimeyer. They claim just the opposite of all the medical clinics referenced here, and they say feeding soy formula to babies is equivalent to giving your baby 4 birth control pills every day because of all the phytoestrogens soy naturally contains.

Scroll to Continue

What are phytoestrogens? They are defined by as “Any of a range of various compounds found in plants that function similarly to estrogens”

Says the Food Renegade: “No one argues, for example, that a leading cause of breast cancer, endometriosis, uterine fibroids, infertility, and low libido is unopposed estrogen, or estrogen dominance. Why, then, would anyone argue that we should consume more of a food high in estrogen?”


A very controversial subject as you can see. Unfortunately, I have no answers to this conundrum. There would seem to be good arguments on both sides, although more and more medical professionals seem to recommend avoiding soy.

Since I do myself suffer from thyroid disease and have frequently eaten soy products previously, I cannot help but wonder if eating those products contributed to my problem. As I see it, it may be better to avoid soy in order to avoid making matters worse for myself. If I did not already have thyroid disease, I might still avoid soy because it may be better to be over cautious than sorry. Everyone must make his or her own decision.

The soy industry promotes their products by misleading, and downright deceiving people, according to Ohio Wesleyan University author Dexter Curtis Adams, functional medicine practitioner and nutritionist Karen Brimeyer, and most recently heart surgeon Steven Gundry. What do you, my readers, think? Will you eat soy, or avoid it?

Share Your Opinion


C E Clark (author) from North Texas on April 04, 2016:

Paul Kuehn, thank you for commenting and for sharing this article on FB and with followers. Glad you found it informative!

Paul Richard Kuehn from Udorn City, Thailand on March 30, 2016:

Thank you for sharing a very interesting and informative hub. When I lived in Taiwan, I ate a lot of soy products. The only time I have it now is in a hot soy drink. I am sharing this hub on Facebook and with Hubpage followers.

C E Clark (author) from North Texas on September 11, 2015:

Peggy W, thank you for sharing your thoughts and this article again!

Peggy Woods from Houston, Texas on September 09, 2015:

Revisiting this hub once again. Even though some time has passed since you first wrote this, the question of whether soy foods are good for one or not is still a question. It probably depends upon the individual person and what is happening in their own no one size fits all in this case. Happy to share once again.

C E Clark (author) from North Texas on September 04, 2015:

Reviewsbypat, thank you for coming by, reading and sharing your wisdom on this subject.

Let me give you a bit of a tutorial regarding personal titles here in the U.S. In some countries it is automatically assumed that a woman of a certain age is married or widowed because that is what women are expected to do -- get married. Here, that is still expected by a few unenlightened people, but those of us who are more modern thinking believe a woman is a person in her own right and does not require a husband to be valuable to society. This new way of thinking is perhaps 20-30 years old here in the states. We have women who choose to marry and women who choose not to marry, and both are perfectly acceptable in our country. Marriage is a choice, not automatically expected just because a woman happens to be a woman.

Here a woman is addressed as Mrs. only if she is married. If she is very young (0-18 or so) she may be addressed as Miss.

Generally we refer to adult females whose marital status we are not certain of as Ms. (pronounced Miz). She may be married or not, but we do not know her status, so we simply use Ms.

Sometimes even if a woman is married we may address her as Ms. if that is her preference -- or if she did not take her husband's name. Here in the states a woman need not take her husband's name, and many women choose to keep the name they were born with. I did that with my last marriage.

I was a daughter, granddaughter, great-granddaughter -- and the line goes all the way back to before the Mayflower landed here, to a Clark. I am currently a sister, a niece, an aunt, and a cousin to many, many Clarks. However, I have never been married to a Clark.

Mrs. Clark referred to my mother, grandmother, and several aunts, and it now refers to some of my nephew's and cousin's wives, but it has never referred to myself.

It is also common here in the South (southern states of the U.S.) to address women by their first name with Miss in front of it. Miss Mary, Miss Pat, Miss Stephanie, for example, depending of course on a woman's first name. It is a way of showing informal respect. By the same token we may refer to a man as Mr. Joe, Mr. Bill, Mr. Brian, and so forth.

The above is done in both cases when we know a person well enough to address them by their first name. I would not recommend using this form of address with someone interviewing you for a job, for example. It shows familiarity and at the same time respect, especially when addressing someone older or with more social rank, however one should be careful because it may be too informal for some situations.

Often we address our supervisors at work by their first name preceded by the title Miss, or Mr. Whether or not a woman is married is irrelevant when using this form of personal title.

You can call me Ms. Clark, Au fait, C.C., or even bitch if you like (sometimes it suits), but please do not call me Mrs. It is totally inaccurate. I have never been a Mrs. Clark.

Thank you again for adding interesting information to this article!

Pat Kane from Belfast, Ireland on September 04, 2015:

Yes Mrs Clark, I heard the unfermented soy was ok, but I'll give it a miss anyway just in case. It's amazing how many foods have a variety of effecdts on the body depending on how they are prepared or what they have been exposed to etc. I was astonished when I heard how many people suffer thyroid problems, I didn't know it was so widespread. Catch Dr. Johnson on YouTube as he tells you how to treat this condition. He suffered Hasimoto syndrome himself for years and really knows his stuff. He's unorthodox in his approach, but if you watch his video with a scientific mindset and ignore the unorthodox info, he gives a lot of info on how to avoid this condition or how to treat it if you already have the condition. The title of his video is "You can beat thyroid disorders...Naturally!" And thanks for posting this hub, it is really interesting and very helpful!

C E Clark (author) from North Texas on April 09, 2015:

Patricia (pstraubie48), thank you for reading, commenting, g+ing, voting on and sharing this article! Actually scientists do know that prepared incorrectly or raw, soy beans are poison to humans. They also know it causes problems with the thyroid if not processed correctly. Soy beans must be fermented to be safe for humans and not cause trouble with the thyroid. I have stopped eating soy because there's no way to be sure if it's been processed correctly or not, and I already have thyroid disease possibly exacerbated by all the soy products I used to eat.

I'm so sorry for taking so long to respond to your comment on this hub, but it somehow ended up on my spam folder and I only found it yesterday. There were a lot of surprises in that folder, so I recommend everyone have a look at theirs.

C E Clark (author) from North Texas on March 03, 2015:

pstraubie48, thank you for reading and commenting on this article. It is unfermented soy that is the main issue regarding human intake. Soy is poisonous to us unfermented and really wreaks havoc with our thyroid. Read this article again and I'm sure it will make more sense to you.

Thank you for the votes and the G+ing. Sharing seems to be working again. I haven't had trouble sharing only one hub and that was corrected tonight so I finally shared it. Hopefully they will get everything fixed her and stop replacing every glitch with 2 or 3 more. ;)

Angels are always appreciated, thank you.

Patricia Scott from North Central Florida on March 02, 2015:

This is not something I have not heard prior to reading this...where have I been?

Who knows about what is really the case with soy?

It seems there is controversy about almost everything these days that have are consumed by us or put on our skin.

It is indeed a conundrum, as you say. More to come on this topic for sure.

Angels are finding their way to you this morning.

Voted up+++ and shared g+ At this time I can not get share to work...had this problem yesterday too

C E Clark (author) from North Texas on December 29, 2014:

DeborahDian, thank you for returning and sharing your thoughts. I agree with you and soy is now included in many processed foods. Check the ingredient list . . .

Deborah Carr from Orange County, California on December 22, 2014:

I really appreciate re-reading this article. I think far too many people are using soy too casually and they really need to read the information you have pulled together here. I will be sharing this with others in the hope that it will help protect the health of many of our friends and readers.

C E Clark (author) from North Texas on February 27, 2014:

Thank you for commenting Deborah-Diane, and for sharing your experience and thoughts on this important subject. Soy, from what my research brought to light, is poison to humans unless processed correctly -- fermented. No telling if the commercial products containing have processed it correctly. I do know that I used to eat a lot of soy products and now I have thyroid disease. Hopefully other people will heed the warnings here and avoid any soy they don't know for sure has been processed correctly.

Deborah-Diane from Orange County, California on February 24, 2014:

I used to use soy frequently. However, I have gradually eliminated it from my diet and now I regret ever using it. Some people think soy milk is a good replacement for regular milk, or that soy is a good replacement for meat products. However, this is simply not true! Great article.

C E Clark (author) from North Texas on December 27, 2013:

Thank you rebeccamealey or stopping by and leaving a comment. Expect you know that the protein in beans is not complete and cannot be utilized by the human body unless combined with rice or corn. Check out my hub on how to combined vegetable proteins to make them complete if you don't already know this info.

Blessings to you too, Rebecca. One of those things we can never have too many of. Happy New Year!

C E Clark (author) from North Texas on December 26, 2013:

Lots of people still do not seem to be aware that soy must be fermented in order to not be toxic to humans and they continue to promote it soy without explaining the dangers it presents when not properly processed.

Thank you for sharing this article Shyron!

Rebecca Mealey from Northeastern Georgia, USA on December 20, 2013:

I have never really tried soy. I just stick to beans and a little white meat for my protein. This is really good stuff to know. Blessings!

Shyron E Shenko from Texas on December 20, 2013:

I had to come back and share this, so much good information.

C E Clark (author) from North Texas on October 31, 2013:

Indian Chef, thank you for reading and commenting on this article and for voting on it and sharing it too!

Soy must be prepared correctly for human consumption to avoid the negative affects. It must be fermented as explained in this article.

C E Clark (author) from North Texas on October 30, 2013:

JayeWisdom, thank you for your very informative comment and for the votes and the share. I have been on thyroid meds for 8 years and they don't always get the job done.

C E Clark (author) from North Texas on October 29, 2013:

Moonlake, thank you for pinning and sharing this article!

Indian Chef from New Delhi India on October 26, 2013:

I am used to eat lots of soya beans as we have been told that it is very good health and full of proteins. but reading your hub make me think twice about it. Anyway I never liked Soya, just had them for their benefits. thanks for sharing. voting up, awesome and sharing.

Jaye Denman from Deep South, USA on October 26, 2013:

I'm surprised I haven't already weighed in on this one because I have a very strong belief that soy is harmful, and I had the emergency thyroid gland removal surgery to prove it!

Let me back up a bit. I bought into the "soy is healthy" hype several years ago, and--as I was then totally vegan--ate a lot of soy products. Since I don't like the taste or texture of fermented soy, I ate the non-fermented type. Never mind that I didn't even realize at the time that non-organic soy is often soaked in hexene, a substance no human needs to ingest!

I also knew nothing then about the phytoestrogens or the goitrogens in soy that prevent the thyroid gland from intaking adequate iodine and, ultimately (if you keep eating the stuff), wreck your thyroid function.

By the time I had surgery, my thyroid gland was enlarged (goiter) with nodules like tentacles wrapped around my esophagus. I had a choking sensation even when not trying to swallow. The surgeon who removed my thyroid told me it was difficult removing those nodules without damaging my esophagus. I'm extremely fortunate he was a capable surgeon. (I've had experiences with the other kind!)

I learned the dangers of soy too late to save my own thyroid--I'll be taking thyroid meds the rest of my life--but I warn other people to stay away from soy products, particularly for babies and children. This is especially important if one already has any thyroid dysfunction at all or there is a genetic family tendency toward thyroid disorder.

Vegans and vegetarians are quite vulnerable to the soy industry's campaign, since so many processed foods are marketed and promoted to those who eat plant-based diets. However, no matter whether you're vegan, vegetarian or omnivore, soy is NOT healthy for you! Trust me--I found that out the hard way....JAYE

Voted Up++ and shared

moonlake from America on October 26, 2013:

Came back to pin this on my Hubpage board on Pinterest. Share with followers.

C E Clark (author) from North Texas on August 21, 2013:

DDE, thank you for reading and sharing your thoughts, and for sharing this article and voting on it! The main thing is that soy needs to be fermented to be safe for human consumption and often it is put into processed foods without fermenting it first and then it attacks the thyroid gland.

C E Clark (author) from North Texas on August 20, 2013:

Rajan Jolly, thank you for reading, voting on, and sharing this hub, and for sharing your thoughts. Mainly to problem is that the soy beans must be fermented before being safe for humans and often they are not.

Devika Primić from Dubrovnik, Croatia on August 19, 2013:

I don't have soy foods however you have made such important points about Soy May Be Dangerous To Your Health I had no idea of what soy foods can do to ones health., you enlightened me on this soy foods, and I shared and LIKED on Facebook. Voted up!

Rajan Singh Jolly from From Mumbai, presently in Jalandhar, INDIA. on August 18, 2013:

Interesting facts, though there are differences of opinion on the health benefits of soy in the medical fraternity it is best to play safe and not consume especially since it has plant hormones that mimic estrogen. Thanks for the warnings.

Voted up, useful and shared.

C E Clark (author) from North Texas on June 07, 2013:

Deborah-Diane, thank you for reading this article and sharing your thoughts. I agree that we are in fact poisoning ourselves with all the herbicides, pesticides, and even many of the fertilizers. There there are the additives once we get it harvested. The whole problem with soy beans is that for humans to eat them safely they must first be fermented.

Deborah-Diane from Orange County, California on June 04, 2013:

Thanks for this informative information. I used to eat more soy products, but I have cut back. It is amazing how we can take a healthy food and spoil it. It's such a shame. I just try to eat fresh food as much as I can ... but then I have to worry about pesticides, etc. There is even a recall going on right now of frozen, organic mixed fruit. I think we are simply poisoning ourselves!

C E Clark (author) from North Texas on May 26, 2013:

Thank you Peggy W for pinning this hub!

Peggy Woods from Houston, Texas on May 23, 2013:

Adding this to my health related subjects board on Pinterest.

C E Clark (author) from North Texas on April 07, 2013:

Thank you for coming back and leaving a comment and for tweeting. Agree that people need all the information on their food supply they can get.

Peggy Woods from Houston, Texas on March 31, 2013:

Hi Au fait,

Came back to give this another look and this time will tweet this hub. People need to be made aware of what they are consuming with regard to their health. The more information...the better!

C E Clark (author) from North Texas on August 17, 2012:

Thank you Rusty Mccollum for reading and commenting on my hub! Hope the information here will help keep you and your family healthy.

C E Clark (author) from North Texas on August 17, 2012:

Thank you moonlake, for reading and commenting.

Like your deer, we all love to eat things that aren't good for us, so following their example may not be the best decision. Fermented soy is safe for humans (not required by most livestock) and unfermented is toxic. Just prepare it (process it correctly) and you should have no problems.

Sorry to hear about your daughter. Does she have any regimens beyond taking medication that she has to follow since the thyroid rules the body and she no longer has one?

C E Clark (author) from North Texas on August 16, 2012:

Thank you Peggy W for reading and commenting on my hub. With soy the most important thing is to be sure you have soy that has been fermented whether it's included in a convenience food or if you buy it and include it in your homemade recipes.

Ruth McCollum from Lake Oswego, Oregon on August 15, 2012:

Wow! I was amazed at this hub,I had no idea that much non fermented soybeans w,ere in so much of our food. Great hub thankful for the info

moonlake from America on August 15, 2012:

We have soy growing in the field across from our house. The field has potatoes sometimes and other times barley. This year soy. The deer love it and don't drop over dead from it. The farmer said the deer love soy more than any crop he plants. I would eat it in a minute with no thought to it being harmful. If it's good for the heart I need to get out there and start eating.

It's always good to steady the foods we eat and make an informed decision on weather to eat them or not and looks like that is just what you have done.

I know how bad thyroid disease can be our daughter had to have her thyroid removed this year.

I think the worst part is the junk they spray on the field with a crop duster. That stuff stinks I have to close the windows in my house.

Very interesting hub good job. Voted up and more.

Peggy Woods from Houston, Texas on August 15, 2012:

Thanks for bringing this to our attention. Cooking from scratch and using as few already prepared or packaged foodstuffs is probably the best approach of all. Voting this up, useful, interesting and will share.

C E Clark (author) from North Texas on June 11, 2012:

The thing that makes most soy bad is that it's not fermented. Thank you RTalloni for taking time to read and comment on my hub!

RTalloni on June 08, 2012:

Interesting read because we have friends who have some experience with what you write about here. I've often wondered if the amounts of concentrated soy that are available are good for us. Glad to see practical questions raised re soy products.

C E Clark (author) from North Texas on May 21, 2012:

SteveW13: Thank you for reading and commenting on this article. People who don't have time or resources to have their own garden, not even a container garden, can take advantage of farm markets and health food stores.

The most important thing discussed in this hub is knowing whether or not the soy products you eat are processed correctly (fermented) or just choosing a different product totally in order to safeguard your health.

Steve Wright from Norwich, England on May 14, 2012:

I totally agree about growing yourself and then knowing exactly what you are putting inside your body. Sadly not everybody has the time or resources to be able to do this though. I am so guilty of eating things and then seeing what was in it and berating myself for it! Great hub though I found it really interesting.

C E Clark (author) from North Texas on May 09, 2012:

TToombs08: You are so right! There are alternatives if a person just looks around. Thanks for adding to this discussion!

Terrye Toombs from Somewhere between Heaven and Hell without a road map. on May 08, 2012:

Local farmer's markets are another great resource for getting quality controlled food. Thank goodness we live in a community of farmers and ranchers around here where it's fairly easy to obtain natural foods. :)

C E Clark (author) from North Texas on May 08, 2012:

Thank you TToombs08, for taking time to read and comment on my hub. I really appreciate it. Think you have the right idea. If you grow it yourself and cook it from scratch you have a much better idea of exactly what's in it.

Terrye Toombs from Somewhere between Heaven and Hell without a road map. on May 07, 2012:

Wow. After all the claims that soy is so healthy for us, to find out now that it isn't?! That's it...I'm only going to feed my family what I organically grow. :) Great hub with lots of information. Nicely done. Voted up.

C E Clark (author) from North Texas on May 05, 2012:

gmwilliams: Thank you for your comments. If this hub will cause someone to research this subject further and/or hopefully prevent permanent negative health issues, that would be great.

C E Clark (author) from North Texas on May 03, 2012:

Afraid they probably are not healthy. The only healthful soy is fermented soy and very little of the soy in various products in the U.S. is fermented. Thank you for your comment, Shyron.

C E Clark (author) from North Texas on May 02, 2012:

Diogenes: Thank you Bob, for commenting. I've sworn off soy and warned my daughter against it since reading all these horror stories about it. Not worth taking a chance, but for me it's already too late since I have they thyroid disease and my thyroid doesn't do anything with out meds.

Grace Marguerite Williams from the Greatest City In The World-New York City, New York on May 01, 2012:

Thank you for this information. Voted up. This is extremely useful information.

C E Clark (author) from North Texas on May 01, 2012:

novascotiamiss: Thank you for your comments and for sharing your views!

C E Clark (author) from North Texas on April 30, 2012:

cloverleaffarm: Thank you for commenting and sharing your views!

Shyron E Shenko from Texas on April 29, 2012:

I love "Total Soy" milk shakes, not sure if they are good for me or not according to the advertising they are. I have too much going on to spend a lot of time reading about it. Interesting article.

diogenes from UK and Mexico on April 29, 2012:

Dear Au fait.

"I grew up eating tons of soy,

although now I've desisted,

The NHS has me listed,

And say I'm no longer a boy!"

Me again on the way to noddy. I tried soy for diet and quite like soy bread but I have read other articles on it and decided it was too dicey, nearly as dangerous as Fergy driving!.(So? I'm into belaboring points)

Don't get eye strain now.


Novascotiamiss from Nova Scotia, Canada on April 29, 2012:

Interesting topic. I have been using soy products in the past but not anymore, as I suffer from thyroid disease. Also, I have read that one of the worst cooking oils is soy oil.

Healing Herbalist from The Hamlet of Effingham on April 29, 2012:

I avoid soy, because here in the US, I have no way of knowing whether it has been GM or not. I do have thyroid issues, but it has never bothered me. I have heard so many issues concerning soy, I just stay away. Voted up+. Very great information.

Related Articles