7 Signs of Soy Intolerance

by Dianne Gregg on September 1, 2009 · 18 comments

Inhabitants of underdeveloped nations and victims of natural disasters are the only people who have ever been happy to see soy beans.”
 – Fran Lebowitz

Soy Intolerance

The most common allergies people suffer are Milk, Eggs, Peanuts, Soy, Tree Nuts, Fish, Shellfish, and Wheat.

Proteins in these eight major foods are estimated to cause 90 percent of the allergic reactions in the United States. Of all of these, soy is one of the most under diagnosed.

Do you have an allergy to soy ?

Below is a list of seven symptoms of soy intolerance provided by the Food Allergy Network:

  1. Vomiting, nausea, bloating, cramps, diarrhea.
  2. Difficulty breathing, speaking or a drop in blood pressure. (Dianne’s comments: blood pressure does not seem to go with the other two here)
  3. Heart palpitations, loss of consciousness.
  4. Anxiety, faintness, distress.
  5. Hives or a rash, red and itchy skin, flushed face.
  6. Swelling of the eyes, face, lips, throat, and tongue.
  7. Weakness, paleness, or sense of doom. (Dianne’s comments: sense of doom does not seem to go here and I think makes you look like a crackpot :-))

Unfortunately for me, I had most of the symptoms of soy allergy. Mine was so serious that I eventually went into anaphylactic shock.

Because doctors thought my symptoms were related to menopause, it took eight years to develop a full-blown attack and to diagnose the problem. Don’t let this happen to you!

About the Author: After developing a severe allergy to soy that nearly killed her, Dianne Gregg learned the truth behind this supposed health food. She is the author of The Hidden Dangers of Soy, a book written to educate others on the negative health impacts of soy. Dianne has appeared on numerous radio shows and has also been seen on CBS4 (Miami). To learn more, and to claim your free chapter of her book, click HERE to visit her website.

[Editor’s Comments: Dianne has a very interesting story to tell after nearly dying from a severe allergic reaction to soy. The negative health impacts of soy are well researched and documented, yet widely underreported. So, Dianne has made it her mission to extensively research this subject and share this crucial information with others.

I have to admit even I was shocked by the number of foods that actually contain soy in some form. If you have a soy intolerance, eating any processed foods is like “rolling the dice.”

If you think you may be suffering from some of the symptoms of soy intolerance listed above, I highly recommend you pick-up a copy of Dianne’s book at the link below:

The Hidden Dangers of Soy

Also, to get immediate access to an audio interview I did with Dianne where we discussed the hidden dangers of soy, just enter your name and e-mail address into the form below. If you are ALREADY a subscriber to The Healthy Minute, no need to enter your information again…you will already receive automatic access to the interview via e-mail.

In the interview, you will discover:

  • The best sources for researching articles and studies on soy.
  • Some of the surprising negative impacts soy can have on children and adults.
  • The most common symptoms indicating you may have a soy intolerance.
  • The ONLY types of soy you should be consuming.
  • What types of foods contain “hidden soy” and what ingredients you should look for on food labels.
  • Some of the most serious side effects that can result from consuming soy.
  • How to find out if you’re allergic to soy.

This is a great call for anyone who still thinks soy is a health food!

Required Legal Disclaimer: Some of the links mentioned within this post or posts they lead to are my affiliate links and I get compensated for recommending those products. However, I NEVER recommend something I don’t believe in and welcome your questions and feedback. If you think you might have a soy intolerance, grab a copy of Dianne’s book.

{ 4 trackbacks }

The Hidden Dangers of Soymilk | The Healthy Minute – The free “1 minute per day” e-mail newsletter that could change your life!
December 18, 2009 at 7:26 pm
Soy Intolerance | The Healthy Minute – The free “1 minute per day” e-mail newsletter that could change your life!
December 18, 2009 at 7:46 pm
Hidden Dangers of Soy Twitterview with Dianne Gregg | The Healthy Minute – The free “1 minute per day” e-mail newsletter that could change your life!
December 18, 2009 at 7:53 pm
Why is soy in so much of our food? « Gluten Free, Soy Free Aussie
October 15, 2010 at 5:26 am

{ 14 comments… read them below or add one }

1 Michele September 3, 2009 at 9:12 pm

Wow, this is so interesting. I had no idea that soy could cause this especially because I hear that you should eat soy as a replacement for some foods. I actually had a conversation with Pete and he warned me about soy. I don’t have an allergy but he raised other concerns. Because I can’t have milk I was drinking soy milk, he directed me to almond milk which by the way is much better tasting.

Thanks for saving my butt, literally. 🙂

2 Bob Friend September 9, 2009 at 2:24 pm

Well, there is a lot of info and disinfo on the Web, as we all know. I checked Snopes, TruthOrFiction, etc. — and there is really nothing about this or perhaps similar e-mails being a hoax, so perhaps there is something to this. The topic probably warrants further investigation. I do know one thing for sure — the milk marketed by the great majority of American “dairy farms” (i.e., inhumane milk factories) is certainly worse for you than soymilk.

I like soymilk because it keeps so well. On the other hand, I never knew how it was (allegedly) made till I read Ms. Gregg’s post. I would be willing to drink ORGANIC cow’s milk on my cereal. I have also in the past drunk a good amount of RICE MILK.

Here are two links with opposing views on soy in general:


PRO: soy milk@Everything2.com
… drinking soy milk is a way of “getting all the benefits of cow’s milk, without the problems” … chocolate when they’re having problems with PMS (okay, and …
http://www.everything2.org/index.pl?node=soy+milk – Cached

The above link does not have a great deal of info, so here is what Dr. Andrew Weil, whom I respect, has to say: http://www.drweil.com/drw/u/QAA400308/is-soy-milk-safe.html .

CON: Why Soy Can Damage Your Health
Collections of articles regarding soy and the dangers associated with it. … Medical Problems. Caused by Soy: Legal Action Request. Soy Milk Is Safe! …
http://www.mercola.com/article/soy/index.htm – Cached


I am not sure if my wife Kerstin stocked up on soymilk at Costco; if not, I will suggest that we might want to switch to rice milk — or even ORGANIC (only) cow’s milk.

–BOB FRIEND (Pete’s son’s step-grandfather’s brother (WHEW!)

3 Dianne Gregg September 9, 2009 at 8:18 pm


Thanks for your comment. My book discusses the pros and cons. Just recently, I received an email from someone who bought my book. She was consuming soymilk and other soy products, including products that disguise soy in other ingredients which is over 60% of the food on the grocery store shelves.

She went to the doctor because she wasn’t feeling like herself and had unusual weight gain. The doctor tested her thyroid – it was high -so he prescribed medication. She didn’t take the medication, finished reading my book, and decided to remove soy from her diet. Two weeks later she returned to the doctor and another blood test revealed that her TSH levels were normal. Needless to say, she no longer consumes soy products.

I also make it clear in my book that more studies need to be done, but in the meantime, we are the guinea pigs.

What are your thoughts on “raw” milk? I know it’s illegal in some states, I haven’t tried it – but people rave about it.

Rice milk, and organic milk are fine. I drink organic milk. If you decide to buy cow’s milk make sure it has not been treated with rsBHT. The label will state it was not treated with rsBHT. Then there are labels that say rsBHT has not been proven to cause any affects–don’t buy it!

4 Katrien Brown July 13, 2010 at 12:53 am


I have battled for years trying to manage my son’s hyperactivity. I didn’t follow his school teachers’ advice to put him on Ritaling. Instead I did my own research on nutrition and ADHD. My gut feeling told me that his diet was the culprit. I tried dairy free and gluten free food, but I didn’t notice a big difference. Slowly, over the years, I excluded all additives and preservatives. I quit my job and spent more time cooking healthy meals from scratch. Four months ago we started to drink raw milk. I have never looked back. My son is now flourishing. His energy levels are up, his eczema has disappeared and he is focusing better at school. Finally I took him to a nutritionist who determined that he was highly intolerant to soy. When he was a baby he used to vomit up his milk so I put him on soy milk! Had I only known! Today he eats organic wholesome food, drinks raw milk and he only eats treats that are made by myself. He is thriving. The school can’t believe this is the same boy! So say NO to soy, YES to raw milk and organic, good old natural food and you will never look back!
Good luck
Katrien in New Zealand

5 Pete July 13, 2010 at 1:53 pm

Hi Katrien,

Thanks for sharing that fantastic story!!! I’m glad to hear your son is doing so well and that you were able to discover his soy allergy.

Best wishes to you and your family!

~ Pete

6 Amy October 15, 2010 at 5:20 am

What a great article and some of the above commenters have really addressed some important points with regard to this ‘soy’ issue. I’m intolerant to soy as well as coeliac. Doctors and school teachers advised for me to not consume cows milk after having been diagnosed with the coeliac condition! We were continually reminded about the goodness of soy and I was told to stick with it! I never liked foods that contained soy/soy products very much, and now I know why! It feels so good to now know and I have thrived ever since avoiding soy in my diet.

Having said that, there are many foods that have to be eliminated on a soy free diet and it’s NOT just soy milk and soy sauce. I really wish people would not underestimate and guess like this! They don’t believe me when I mention that some 97% of bread-based products contain soy and that the gluten free pizza bases used at places like Domino’s here in Australia are MADE OF SOY FLOUR! And it doesn’t stop just there, as you say…
Derivatives are found in virtually every ‘ready’-meal, chocolate bar, chewing gum treat, vegetable oil blend, margarine, vegetable shortening (e.g. Copha, Crisco), COOKING SPRAY (you might just be surprised what else lies in the ingredients of THIS bugger, other than canola oil!) and even full cream milk powder! Other places it seems to lie are in herbal teas, soups, stocks, asian condiments and the list could go on and on and on and on and on and on and on and on. These are ALL things that I have to avoid along with gluten as well! So it does get challenging for me!

If in doubt, check the ingredients or, LEAVE IT OUT!

I know I sound a little like a ranter but I don’t mean to at all. Perhaps I’m just a little overly-logical. Having said the above, I thought I’d save the best news ’til last:

I have VERY recently created a blog and am posting many entries each week! Take a look at one particular post on this topic, too! I have done much research with regard to ‘soy’ that I plan to continue to share! I shall also try to get a hold of the aforementioned book.

Thanks for a great topic, Dianne! All the best!

Amy 😀

7 Pete October 15, 2010 at 9:08 am

Hi Amy,

Thanks for sharing your story! Yes…it is SHOCKING all of the hidden places you can find various forms of soy. Just another reason to eat mostly organic whole foods in their natural form and avoid processed junk as much as possible.

Nice looking blog…thanks for helping to spread the word about hidden soy!

Best wishes,


8 Kari January 18, 2011 at 5:06 am

As to the quote at the top I must say that there are many people in the developed world that are “happy” to see soya beans. Just because there are some people who have an intolerance with soy products does not mean that it doesn’t nutritionally benefit others. I’m not sure why soy gets such a bad wrap when there are many many people out there who have intolerances to things like dairy, nuts and gluten. As someone who has developed an intolerance to soy (and gluten, sunflower seeds and lactose) I still stand by the fact that these foods still have benefits to some people.

9 Kelly February 13, 2011 at 2:30 pm

Kari, there is so much debate as to whether soy is healthy or not. From much that I’ve heard of, even organic (non-GM) non-fermented soy products are known to be harmful as well. It is extremely difficult to digest and is not a complete protein at all.

I would suggest that everyone thinks for themselves in this regard, however it is rather bizarre how our food industry works. Beats me, anyway 😛

From some of my research, I have a slight feeling that the two most GM’d foods (i.e. soy (no. 1), corn (no. 2)) could well be responsible for many of the food issues present in today’s society. You may be interested in my hub on corn gluten http://hubpages.com/hub/BEWARE-Corn-Gluten-is-NOT-

I guess we should all remember, soy is a food that virtually did not exist at one point in time. It was not that long ago in time that its derived ingredients were forced into virtually every part of our lives. Soy flour and soy protein isolates are two substances that much of the general public, today, don’t even know about. Soy oil and soy lecithin (common ingredients used in most of our day-to-day food products) are commercial products that one would never produce on their own, yet these minute amounts of soy are present in virtually all North American foods and cooking convenience items. When my friend tells others she has problems with soy at social functions, etc. the response is often this: “That’s simple, Just ask for a dish without soy sauce (no mention about types of oils or protein isolates or anything like that).”

I am very wary of soy and although not allergic or intolerant to it, I always do my best to find soy free alternatives (particularly with non-fermented soy products). Two friends of mine are allergic to soy (one of whom also has coeliac disease on top of her allergy). Soy free bread is now very difficult to find, virtually impossible at regular supermarkets too.

I really feel for those who have to avoid soy, and put up with all the “nonsense” with regard to this allergen; particularly when it could, quite potentially, be eliminated from many of our favourite foods around.

Eg: Bread and Chocolate: These foods should be safe. In certain countries and cultures they still would be, yet in many parts of our western world today, it is very hard to obtain any form of bread or chocolate that doesn’t have at least a minute amount *added*. Surely almost all chocolate companies could achieve the same great quality and taste if canola or sunflower lecithin were used as alternatives. Initially, chocolate was made with pure cocoa butter – never emulsified (and most certainly NEVER lecithinated with soy oil *sludge*)! Yet they decide to stick with soy lecithin as it is *less costly* and the cost simply cannot be justified.

In my opinion, without a doubt, this wretched food product is no longer being productively used within foods. Rather (quite scarily), the food industry is simply using it to help *make ends meet*…

Such a shame. Perhaps more individuals should speak up about these matters, as it may just help raise awareness about the issue.

Thanks for the article

10 Henry February 18, 2011 at 11:59 pm

“sense of doom” refers to a change in adrenal hormones. Did you ever here of the flight or fright response? An allergic response can cause increased adrenalin. That does give people a feeling of doom or extreme anxiety. It doesn’t make them look like a crackpot, they just don’t explain why someone might have that feel g because it’s a symptom list. This is a very real and disturbing symptom for some with food allergies so please don’t dismiss it as crackpot.

11 Julia April 26, 2011 at 12:09 am

I experienced a cluster of negative physical effects that were mysterious to me about the time I went vegan and started using a lot of soy. I thought all the gas and bloating was from eating more beans and veggies, but that didn’t explain my increase in acne and night sweats. I finally put it together that my soy lattes were the culprit and after avoiding all soy as an experiment, my symptoms greatly improved. I am amazed at how many people nay say soy’s effect on the endocrine system as a phytoestrogen. I don’t know how it works, if it binds to estrogen receptors blocking estrogen or results in an estrogen-like overload, but it definitely changed my hormonal balance. Thanks for this article. It’s my belief that soy is not well understood enough to be used in great quantity.

12 Pete April 26, 2011 at 12:21 am

Hi Julia,

Thanks for sharing…and definitely stay away from those lattes! Stick to the organic swiss water decaf coffee, black with no sugar, milk, cream, half and half, etc. I know it doesn’t sound like much fun, but it’s the best for you if coffee is your drink of choice.

Wishing you health and happiness,


13 Mitch May 26, 2017 at 12:34 am

I have recently become aware that I have an intolerance to Soy products. It’s never been life threatening just nausea and diarrhea. I always used to think it was food poisoning. But I just learned recently that my sister is also Soy intolerant. So now I try to check labels for soy but when I forget and I start getting stomach cramps I check the label and sure enough there was some form of soy in it.

14 Pete May 31, 2017 at 2:02 pm

Hi Mitch. Thanks for sharing! Unfortunately, that’s pretty common. I’m glad you figured it out…many people suffer their whole lives with food allergies without realizing the true cause of their issues.

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