When we got home from the hospital, I asked my husband if he wanted the good news or the bad news… or the other good news… or the other bad news. He asked for the bad news. You, dear reader, get the whole story.
After ringing five breast surgeons on Tuesday, we were relieved to find one that could squeeze us in on Thursday. I met with the surgeon’s assistant first, who took my vitals and went over the situation with me: describe the pain… when does it come?… how bad is it?… do I eat much chocolate?… do I drink much caffeine? (no and no)
Then I met with the surgeon’s resident doctor, who when through the same things but in more detail. She asked if I drank much caffeine or ate much chocolate. She gave me a breast exam and said that my breasts felt remarkably lump-free, especially given that I am breastfeeding. Then she paused and said she thought she felt a possible… something.
The surgeon came in and examined me as well. The resident doctor showed him the something she thought she’d felt, but he did not think it was anything worrisome. He asked when the pain came, and how it felt. He also asked if I took in much caffeine or chocolate.
He was baffled as to what the pain might be — both he and the resident didn’t have any real guesses. He decided he wanted me to have a mammogram, and an ultrasound, and a possibly a breast MRI, and felt that those would shed some light on things. His office got me an appointment for later that afternoon, and my mother and the girls and I went off to find some lunch.
I had heard bad things about mammograms, but it wasn’t nearly as bad as I’d feared. The hospital had seemed to take special care to make the process as pleasant as possible. The whole place was beautifully appointed — it had a bright atrium lobby, more like a hotel than a hospital, with a grand piano that played itself to create a calm and pleasant atmosphere — and that thoughtful design extended to the mammography department. I might have been at a spa rather than a hospital. Everything exuded calm: the carpet was plush, the wood accents were richly toned, the flowers were tasteful. I got changed into my gown (heavy cotton, nicely patterned, big enough to keep me dignified) and a lady called my name. She was Linda, my technician — my personal technician, as she explained — and her remit was not only to conduct my mammogram, but to stay with me and hold my hand throughout the entire process. She asked me to explain the pain, and I walked her through the situation as I had the all others before her. She examined my breasts and remarked how smooth the were, and asked me the usual questions: did I eat much chocolate or drink much caffeine?
She took four mammogram shots (photos). I’d been told that mammograms really hurt and was nervous. But compared to the various physicalities I’ve experienced in the last 12 months (childbirth, breastfeeding, a biting baby, and these unbelievable mysterious breast pains), it was a walk in the park. Linda poked and pulled, I held the convoluted positions she shaped me into, the plates squished and compressed, the machine whirred and beeped. After examining the initial four shots, they requested three more.
The radiologist was pleased with what she saw on the screen during the ultrasound: my breasts were very dense, but the ducts were clear and clean, and she saw no lumps or cysts. She asked why I’d been sent in, and I explained the whole situation again. She didn’t have any answer — there was nothing on the mammograms or the ultrasound to explain what I was describing. She asked, like everyone before her, those same questions: did I drink much caffeine? Did I eat much chocolate?
But then she asked another question, “Do you eat much soy, or soy products?” I was surprised, and repeated her question back to her. Did I…? “Yes,” she said, “It’s well-known that eating soy products can cause extreme breast pain. I get pain if I have even a little soy-milk and my breasts aren’t all active and hormonal like yours are.” I couldn’t believe what I was hearing. I had changed to soy-milk when we realised that E2 has a dairy allergy. I have it every day in my cereal and all day long in my tea. No one had said anything about this to me before. “Well, I bet that’s it!” she said. It seems very likely — even down to the fact that this intense pain flared up a few days after we moved to the US, perhaps because the soy-milk here is of a different concentration than I got in the UK. She was confident this was the probable culprit, “Cut out the soy milk and see if that helps. It will take about two weeks to exit your system, but I’m guessing your pain will clear up.”
So, there you have it. The good news is that my breasts are clear of cysts and lumps and irregular shapes. I am massively relieved. The bad news is that it means that no one was able to actually diagnose anything. The other good news is that I think perhaps we may have our diagnosis anyway, and it’s simple and easy. I am incredibly excited at the prospect of ditching this pain for good. And, sadly, the other bad news is that this diagnosis — this spur-of-the-minute, coincidental, casual mentioning of a “well-known” fact that nobody seemed to know — came after I had to spoken to an ER doctor ($$$), an surgeon’s assistant ($$$), a resident doctor ($$$), a surgeon ($$$), had seven mammogram images ($$$), and two breast ultrasounds ($$$). I’m going to have to write a big cheque for something that could have come to light as easily at the beginning of all that as at the end.
Never mind. The soy milk is down the drain. I am surviving the continuing bouts of pain with renewed hope of future pain-free-ness, and an enormous amount of relief that it wasn’t anything truly serious. The money thing is a pity but, really, it’s not what matters. I am healthy and, it would appear, soy milk is… evil.


I am so glad you got such a good report. I hate it that it’s going to cost so much $$$$$. The way your described the hospital lobby sounds just like the one in my home town and I can’t help but think that a big portion of the $$$$$ is going into the plush carpets, marble pillars and grand piano.
Who knew soy could do such things. I drink it everyday and put soy products into our meals all the time with no side affects that I know of.
You know, I’ve done a fair bit of research into soy and its effects on the body – and I have never once come across this, so I don’t think it’s quite as “well known” as the tech seemed to indicate. I am so glad that she thought to mention it, and it is really lame that nobody else did, but I suspect it is a relatively new bit of information?
Good luck getting rid of the pain – will you be trying rice or almond milk, or something else entirely?
My wife also went through the soy thing with our first while breastfeeding, but had none of your problems and in all of the research we did on the stuff, I found not even an inkling of this kind of trouble.
Great news, that it may be just dietary, though!
I am in this site today because I have this terrible breast pain. My breasts feel heavy, swollen, and tender. A friend of mine, my age, commented to me today that she avoids soy completely because she is premenopausal. I was stunned. Daily intake of soy milk is the only new thing in my diet. I just replaced real milk for soy thinking about health benefits. Well, the pain is definitely there. Today, I felt that my breasts were going to explode! I came home and threw away the soy milk. I knew it was not cafeine, chocolate, alcohol, meat, or any other thing, just the soy milk. I hope that I will go through a quick detox of the soy product.
How relieved you must be!
I’m so relieved for you! Sorry about the $.
THANK YOU guys for confirming it’s not as well-known as the radiologist thought it was! I have to admit, I felt a bit of a dolt when she said it — sitting there half-naked, feeling vulnerable and having been poked, prodded, and pulled about for most of the day. I was relieved to hear the answer might be so simple, but I did feel something of a numpty.
I do hope she was right though. It is slightly concerning that no one else has heard it — is it true? — but we shall find out in time. I googled it and found nothing (except my own blog!). I will let you all know.
I’d never heard this before. I feel a good OB/GYN would’ve guessed it, though.
I am soooo relieved for you and all! Thank goodness!
wow, remind me not to change to soy anything in the future, but then I’m married to a lobsterman, and they are a rare breed… they don’t “so” soy anything so it’s not likely to ever get onto my shopping list. I am so happy that the problem apparently can be solved as simply as changing milk. I hope that was the correct diagnosis, too.
an abstract from naturalnews.com on soy:
What’s so bad about soy? Well, it contains lots of phytic acid, an acid which can also be found in yeast bread but not in sourdough bread.
Sourdough bread is a fermented bread which contains lactic acid bacteria and so does fermented soy. Besides eating the sugars in the starch these bacteria also eat the phytic acid.
If left intact, phytic acid acts as a mineral blocker. It blocks the absorption of important minerals like iron, zinc, magnesium and calcium. Feeding babies with a so-called lactose allergy soy milk is an absolute disaster. Kids and adults would also do wise to avoid taking unfermented soy.
Everything you need to know about soy, and soy products can be found here:-
http://www.soyonlineservice.co.nz/index.htm
Hope you’re feeling better now Strawberry, and that the pain has gone away.
Strawberry,
You are not alone. I am 34 and have the same problem, my breasts ache when I eat or drink any soy products. A few years ago I was trying to be “healthy” by adding more soy to my diet and then my breasts started to ache off an on. The ache was quite painful which was worrisome. It took quite awhile to put two and two together. I think I read an article or someone mentioned that soy could cause breast pain (and cancer) so I stopped taking it in and the pain went away. The possibility of cancer is more of what scared me because my grandma had breast cancer and my mom passed away from it. I have since eaten and drank soy to test it out and yes, that is what was causing my pain. It must be something in it that affects some womens hormones but not others? I don’t know the answer as to why but I do know staying away from soy products keeps the pain away.
I stumbled upon your blog via a Google search. I seldom comment but feel compelled to give my 2 cents regarding soy. I recently switched to a “healthier” (mostly plant-based, low-fat) diet and have exercised consistently since my last period. However, my breasts started aching, sometimes quite acutely, since the day before yesterday, well over 2 weeks before my next period, thus ruling out the possibility of PMS. The only variable in my lifestyle is the massive amount of soy products (edamame, tofu) I have put in my diet, since I don’t eat meat but need the protein. I am glad that I am not alone in the suspicion that soy might be linked to breast pain. I will stop eating soy products from now on and see if the pain goes away (thus confirming it), or persists after my next period (which will be scary). Sigh…
I am glad that you are okay!
How has obtaining from soy worked for all of you?? I have to have a mammogram & ultrasound tomorrow because of breast pain. My OB asked about soy products & I have had an increase in the last year … so I guess step 2 (if nothing shows) would be to cut it out entirely!
o my goodness. i was doing some reading on soy milk. i started drinking silk when my cholesterol came back as over 300!!! i love milk and have acid reflux , i am 40 and the doctor told me i need to up my calcium intake so i was drinking alot of milk. With the soy milk my cholestrol came down to below 200 in 6 months . Then my mother in law started telling me that soy milk wasn’t to good. I was also having some weired pain in my breasts. I stopped drinking the soy milk till i could do some reading on my own. I was not to worried about what i read. I have had a hysterectomy and being a woman i’m not to worried about growing breasts (witch for me that would be a good thing). Then i read your article and it hit that the pain i had been having was gone. It never crossed my mind that the soy milk could be causing the pain. I figured it was stress or ???? I didn’t know, the only thing different i was doing was drinking the soy milk. I am sold and will not be drinking soy milk anymore. Thank you for putting this out here.
Thank you for posting. I also experience acute breast pain after consuming soy products and would like to note here that even foods such as cereal and chocolate–containing soy protien and soy lechitin, respectively–have induced said discomfort. Odd that there is not more literature available regarding this issue.
I’d never even heard of any negative effects until my homeopath said never to touch soy. He was so against it he even said if he was king he would outright ban it. It was crazy! Soy is something any nutritionist raves about! I’m having to adjust my whole way of thinking.
I found your blog while searching about soy and any link to breast pain – which I have made the connection with the two myself. It’s very odd – I’ll go off soy and my breasts feel fine but as soon as I drink soy milk after a week or so of abstaining – my breasts ache as if I need a bigger bra. They feel extremely full and achey. I was having actual pain in my left side whenever I laid on that side but it has subsided. My mammogram is due anyway so am about to get it all checked out but I just wanted to comment that I noticed the same thing as you !
Hey ~ after I posted to your blog I kept doing research on soy and breast pain and found an interesting website. I have read before that the additive Carrageenan is not good for human consumption – it’s like adding vaseline to food. This doctor has been doing some of her own testing and research and it makes sense. So it “may” not be the soy but the additives. Check it out here: http://www.notmilk.com/carageenan.html
I too have just started on a vegan diet, and started by using soy milk. After a few weeks my breasts, especially one that had a lumpectomy done 25 years ago (not cancerous) was becoming extremely tender. I was talking to a friend, and she suggested I cut out the soy milk. I did and the tenderness went away within a few days.
My dr suggested I try soy milk again in small quantities. I did this 2 days ago by adding about 1/4 cup to my cereal along with my usual rice milk. Guess what – tenderness started right up again.
Now I see the link about carageenan and read that info. I looked at my soy milk container, and sure enough , that is listed as an ingredient. I think I will wait a few more days, then try one of the brands without this ingredient and see if tenderness comes back. This is really interesting stuff, and thank gosh for the internet!
I have started incorporating more soy milk in my diet free of carageenan. I have been aware for some time of carageenan possibly causing digestive problems, so I buy Eden Soy, which does not have it. However, I have been getting a lot of breast pain and believe it is due to the increase in soy milk in my diet. Does anyone know tofu to cause breast pain also?
Hi Jennifer,
In my case, any soy of any sort causes me pain. If I have soy inadvertently, I will know within hours, and the pain can last for days. But I think each case is different, depending on each person’s individual biological makeup.
When I stopped drinking soy milk, it took two weeks for the soy to exit my system enough to notice a significant reduction in pain. But then it took another four months to become pain-free, and that was because of all the ‘hidden’ soy I was ingesting through almost every other food in my diet. Start checking labels really carefully in order to become aware of all the soy that you’re taking in from other foods. Look for soy, of course, but also these: lecithin, emulsifier, natural flavours, soy oil, vegetable oil (containing soy), vegetable protein, miso, edamamie, tempeh, and TVP.
Good luck!
[...] even possible that I could be reacting to a moisteriser?!? I don’t have a soy allergy, just a strange hormonal reaction when I eat it. Or… perhaps wear [...]
[...] suddenly developed incredible pain that debilitated me for months before we got on top of it, the medical bills for that pain and the girls’ allergy care ate up half our moving fund, we found we had to pay [...]
Hi! Did it clear up after all? I also wonder, were you drinking conventional or organic soy? I’m breastfeeding, do not experience breast pain, and have replaced organic cow milk with organic soy milk, but I am still concerned that I should cut back even without having side effects. How long were you breastfeeding before you experienced the pain? Thanks!
Do you really think soy milk is “EVIL”.
Doesn’t that suggest somone is deliberately making a bad product.
Or maybe you just didn’t do you own research before you wrote this article?
Your choice of words is interesting to say (to soy ha ha ha?!) the least….
Hi Sam,
Yes, for me and my body, soy milk is evil. It causes me excruciating, debilitating pain that blighted my life for months before it finally exited my system. If you read through some of my other blog posts on the subject, you might better understand how I came to this opinion.
I didn’t do any particular research other than my own personal experience because this is not an article, it’s a personal blog post, detailing only my personal experience. And what I wrote is 100% true and accurate to my experience.
Hi Strawberry,
Found your blog from a Google search.
LOL, Sam Livingston I presume?, … doesn’t understand the difference between a scientific journal and a public diary/blog
Thanks for the article, I have personally been doing alot of personal research to understand the effects of soy in it’s plethora of incarnations and the side effects these various forms of soy will have upon the body.
Myself, I have noticed that Americans as a culture seem to jump on the band wagon about the latest fad regardless of the serious implications for the public after mass consumption has ensued.
It seems that for nearly 2 millenia Asia has consumed mostly fermented soy products [tempeh, miso, shoyu sauce [soy sauce]] and using these products in moderation has moderate beneficial effects for the body, ie… providing probiotics for the colon. But of course they aren’t chugging soy milk by the truck load.
But of course “we” as an American culture go nuts and put it in EVERYTHING and “franken-size” it in a lab and feed that to the general public and our animals. No wonder people have so many allergies and other illnesses.
Thanks for your “article”
Rebecca
My husband, a physician, and I, a registered nurse, were experiencing a change in our breast. I was experiencing breast enlargement and tenderness for over a year. My husband was also experiencing breast tenderness. After a negative mammogram, which I was sure would be positive; I began to talk about my fears to my husband. He disclosed that he also had been experiencing breast tenderness for about 9 months. We both wondered if it might be from our increased consumption of soy milk so we eliminated it from our diet immediately. Within a week our breast tenderness was gone and hasn’t returned. I have never seen this in the medical literature, but I wonder how common it is, and does it have other possible side effects that we may not yet associate with soy milk; i.e. soy milk is given to children with milk allergies in their developmental stages.
I’ve never heard of that before. I was born lactose intolerant and was a vegan in childhood. If it hadn’t been for soya milk as a baby, I could’ve died. I was losing weight rapidly as a baby and starving to death because I couldn’t digest milk, either breast milk or cows / goats etc milk. Until the doctors realised I was lactose intolerent they were at a loss as to why I was so ill and could not feed.
As an adult, though I can tolerate small amounts of lactose now, I drink a lot of soya milk. I’m drinking a glass of soya milk as I type this.
I’ve heard a lot of bad things about soya, but I’ve never suffered anything because of it.
I’m underweight. I have always been underweight. No matter how much I eat I struggle to maintain a healthy weight, even though my breasts are quite large. I’m 5’7.5 tall and my waist is 24 inches, but my bust is a natural DD cup.
When I have stopped drinking / eating soya products I have dramatically lost weight.
I do also make and drink rice milk, but for some reason soyya is the only thing which seems to help me maintain weight.
I’ve had extensive tests and doctors aren’t sure why my body works the way it does, but I don’t know what I’d do without soya.
I found this post on Google after putting two and two together. I am a reformed vegetarian who gave up veganism along with all of its pseudo “healthy” foods such as tofu a couple of years ago… funny, I never noticed that the nearly crippling, painful breast tenderness went goodbye with it. The we had a vegetarian friend over this month for dinner, so what the hay, why not add some tofu to our dish, and make it nice for her? BAM! This month, that evil, debilitating pain and swelling in my breasts was back with a vengeance! I had always blamed the caffeine – but all along, it was the soy.
I am so pleased this post helped you — and all the others who have left comments about it over the past two years. I think your experience really gives a good indication of a strong cause-and-effect link that I wish more people were aware of. Certainly more women, because I think a lot of women are suffering pain — to greater or lesser degrees — that they simply don’t have to go through.
I, too, have had a negative experience with soy milk. I tried soy milk to lower cholesterol and hopefully lose weight. In about three weeks my breasts grew larger, and felt so heavy and painful, that I wore a bra 24 hours a day. When one breast began to leak a clear liquid, I researched my problems on the internet and found that my smptoms were like that of the deadly IBC (invasive breast cancer). Of course, that was very scary, and I made an appointment with my doctor immediately. In the meantime, my husband, ever the logical one, said that since the only major change in my diet was the soy milk, perhaps that was the problem. I did more research and found that soy milk contains plant hormones that act like estrogen and were most likely causing my problems. I immediately quit the soy milk, and kept my doctor’s appointment. I told them my theory, but they were skeptical and brushed me off. They did find a papilloma which they removed, but had no explanation as to why both breasts were swollen and painful. About three weeks after quitting the soy milk, my breasts were back to normal. I have also noticed recently that drinking cow’s milk with hormones also causes breast pain for me in the breast that had the papilloma. I went to milk labeled “hormone free” and the pain stopped. I am glad to see that there is now more information on the net about soy milk’s side effects, but I wish doctor’s had the information as well.
Thank you so much for your post. I’ve been dealing with a terrible breast pain for over 18 months. I have had 5 ultrasounds and 2 specialist.
It wasn’t until my last ultrasound that the radiologist came in and told me that I had a nodule the size of a jellybean, but that he highly doubted that it was the cause the pain in the lower portion of my right breast. He told me not to go back to the surgeon and to definitely NOT have the nodule removed. Reason being that having the nodule would only cause scar tissue and not relieve my pain in any way. He mentioned that the tenderness could be caused by caffeine or soy products. When he said soy, I couldn’t believe what I was hearing. So I stopped him in his tracks and asked him to repeat the soy part. He said that soy acts similar to estrogen and that it can cause breast pain.
So here I am, 3 days later…I stopped drinking soymilk, and the pain is not as severe. I’m having a hard time doing without soy milk since it’s my BIG addiction. I LOVE soy. Well I guess what they say about love is true…love hurts! I’m hoping my soy cravings will die down and that the pain is totally eradicated.
I’m soooo dissapointed about this soy thing. You’d think doctors would be more informed about this kind of stuff. I guess there’s no money in it for them if the are well informed. Think of all the money that could have been saved had I been told about this soy thing sooner…ugh!
Momma2, I’m so glad you’ve had that diagnosis and had some immediate relief. I agree with you that it is amazing that this is not more well-known by doctors or the general public. But certainly, from the number of responses I’ve had to this post (and the searches that bring people to it — it’s one of my most popular posts and the searches are always along the lines of “soy and breast pain” or “severe breast pain”), it seems that there are a lot of women who are dealing with a lot of pain in silence (because, really, who talks about breast pain?) and not getting a lot of useful info from their doctors.
Just a word of warning — it look me months for the pain to fully go away. Partly that’s because it took a long time for the soy to exit my system, and partly because there is soy hidden in the vast majority of foods in the American diet. If you don’t find that relief is coming quickly enough, start checking the labels on all the other things you eat, and read some of my posts in the months following this one. Good luck!
Thank you for posting this blog up. I’m a 19yr old that was experiencing soreness and pain on the left side (began drinking soy 4-5mo ago) and went to visit the doctor today. She did a breast exam and found a 5mm moving lump on the left side and now i need to be scheduled for an ultrasound. Funny thing is, she asked me “do you eat chocolate?” “yes 2-3x a week recently” “do you drink soy milk” “yes, at least every other day” and she mentioned nothing. I did some research and found numerous articles noting the various side effects. Now that I look back, when I began drinking it I had experienced irregular menstrual periods.
And i thought I was being healthy! Exercising again, eating healthy, etc. Seems like it was counter active. I wish more people knew about this!
I am so relieved to come across these blogs regarding breast pain and soy products. I started drinking soy milk to lessen my hot flashes, but I’ve ended up with really sore tender breasts instead. When I stopped the soy for three days the breast tenderness went away. I started drinking soy again to test my theory and sure enough, the breast pain and tenderness started right up again. I’m done with soy!
Im not saying that the cause of your pain wasnt the soy..but there can be so many other possibilities too..when doctors dont know whats wrong with someone they guess and ask questions..they’re hoping theyll hit in one of their guesses..in this case it was soy…so automatically without doing any further tests or anything to back up their claim..they say “Well there you go..its soy”..now in reality you might have just been allergic to soy…did you get a food allergy test done? It might not have even been soy..it mightve been something else in your diet…I drink soy and dont see the harmful side effects everyone talks about…someone is always going to bad mouth every other product for their own personal gain. You have to go on your research and listen to your body. Remember, doctors are blood suckers. Theyre vampires. They diagnose you with illnesses and diseases that you probably dont have and they prescribe medications like it was a candy store just so that they can get a commission from the product they prescribed. If anyone here cares about their bodies, go hollistic. The pain in your breats could have been associated with something as simple as stress.
Bob,
In my particular case, I know that the culpret is soy. I am pain-free as long as I am ruthless about keeping it out of my diet and, if I let even a little slip by, I am in pain within hours. With me, it’s a very clear cause-and-effect. I did have a food allergy test done, and I am not allergic to soy — the pain I have is a phyto-estrogen reaction.
The reason that you are not having the same effect from soy may be due to the fact that you are male (I assume from your name), and therefore your estrogen levels will be different and, one assumes, any effect you may feel from the phyto-estrogens found in soy. But I agree that it’s important to be active in one’s own healthcare and not always take everything that a doctor says as absolute gospel.
OH MY GOD IVE WON THE LOTTERY AFTER MONTHS OF DISCOMFORT BREAST PAIN BREAST ENLARGEMENT WHICH DUE TO MY TINY BODY ID NEVER SEEN THE LIKES OF AND CONSTIANT CRAMPS AND PELVIC CONTRACTIONS AND THE FEELING OF PMS CONSITANTLY FOR 7 MONTHS NOW ..AND NO EXPLAINATION SO FAR OTHER THAN THIS…SOY LIKE SOME OF YOU I EXPERIENCED DAIRY AND WHEAT INTOLERANCES IN JANURARY AND DECIDED TO GO ON A SOYA SELT DIET ..AND SINCE THEN HAVE BEEN DIBILITATED WITH BACK AIN BREAST PAIN STOMACH CONTRACTIONS AND NO DR CAN FIND ANYTHING ..CUD THIS BE THE ANSWER IVE HAD MY SUSPISION SINCE THE DAY BEFORE YESTERDAY AND STOPPED DRINKING IT AND TODAY IS THE FIRST DAY SINCE JANURARY I FEEL WELL ….THIS IS UNREAL I MEAN UNREL IVE HOPE FINALLY HOW LONG DO YOU THINK EFFECTS WILL EASE OFF EVEN THO ALREADY FTER 48 HOURS I FEEL BETTER
SHELLY121
Hi Strawberry,
you have no idea how much your blog means… Today I started my research by typing in “soy products and breast pain..” etc. I kept getting only positive descriptions of soy; then, finally, I came across your blog. When I read it, I almost shouted “I KNEW IT!”: my breasts would become tender and painful every time I switched to a “healthy” diet only, which, of course, included soy milk and tofu. I usually do get some swelling and tenderness before periods but never during or right after my periods, when I am off soy. Once I start using soy milk in my cereal, the pain never goes away. I suspect that soy milk may affect ovaries as well, since I also suffer from occasional pain in the lower back, just never made that connection to soy milk. Thank you and be well.
I’m a 19 year old girl and have been experiencing breast discomfort for a few months now (mainly the right breast) although worried abt wat it could be I have been to scared to see my dr abt it so I decided to do some research on my own, I had a feeling tht soy could be the culprit in my case so I searched “can soy cause breast discomfort” and stumbled on ur article, I can’t even tell you how relieved I was to have read it. Although never excrutiating, the pain is very uncomfortable. I’ve checked to feel for anythng out of the ordinary and found nthng (thank G-d) I do believe tht soy is the problem, however I was just wondering if EVERY soy product can cause breast discomfort or is it only soy milk? Cuz I have a feeling it can be from soybean oil and soy sauce as well- any thoughts? Thanks again. And hope all is well.
Hi Perry,
I’m glad my post was of help to you! And I do hope that your pain is soy rather than anything more worrisome. A word of warning though, that it took me about four months to get completely pain-free. I think that was partly because it took a long time for the soy to leave my system, and partly because it took me a while to figure out that I still ingesting soy in a lot of foods that you’d just never think would have soy in them (that is, practically everything I was buying). So be ready for it to maybe take awhile before you see results.
As for which soy products can cause pain, I can only speak from my personal experience, but I do get pain from every single type of soy that I’ve had (soy oil, soy sauce, soy lecithin). If I eat any, I’m in pain within a few hours and that pain can last anywhere from 30min to 3 days, which I suspect is dependent on where I am in my monthly cycle and how many hormones are running around my body. For me, the only way to be reliably pain-free is to go absolutely zero-tolerance on soy in my diet. Be aware that soy oil is considered to not required by law to be listed as an allergen (even though soy itself is), so if soy oil causes you a problem, you need to read the full ingredient list and not rely on just the allergen info.
Good luck! Come back and let me know if your pain goes away.
I just found this post after finally figuring out that my weird, painful periods and horribly painful breasts were corresponding to my soy consumption. I’m lactose intolerant so I normally just get by without any kind of milk, but a while ago I started buying soy milk because I missed cereal, and all the sudden had strange periods, painful breasts and migraines that would leave me unable to function.
I get migraines sometimes so I thought it might be stress, same w/ the weird periods. But just a few days ago I bought a carton of organic soy milk, and what do you know, it started up again. At least I was paying enough attention to my body to pick up on the changes this time. I’m kicking soy out of my diet. Along with all the other things I’m sensitive to, because seriously, the breast pain is freaking awful. And the migraines aren’t great either. Good post by the way! Although I’m not glad others go through the same thing, I’m kinda happy to hear that I’m not a lunatic, or seriously ill. I’ll just cut out the culprit from now on.
Thanks for your post. I jsut had a similar experience which I now know is likley due to soy milk.
I have been battling with extremely tender breasts now for the past four weeks or so. I figured it must be something in my diet. . .and narrowed it down to Soy Protien in “Zone Bars.” I don’t drink tea or coffee and don’t eat chocolate. I thought as a healthy substitute when I did want chocolate that a Zone Bar would be great, low in fat, sugar etc. I started eating them about four weeks ago. . .I have subsequently stopped eating them and manage my diet very carefully to watch for any form of hidden soy. Since doing this, my breast tenderness has subsided. From doing a google search I came across your blog; there are several good articles out there that support the idea that for some women soy is a source of breast pain.
I can’t believe I’ve found someone else who has experienced severe pain related to soy, although my breasts were not the problem. I’ve been using a soy based diet shake to help me lose weight for about five weeks now. The pain in my hips, thighs and knees has been almost debilitating. Sometimes it was so bad I could hardly walk, limping at best. My job requires a lot of time on my feet and by the end of most days I was in tears. I suspected it could have been the soy and stopped using the product three days ago, and the pain is gradually subsiding. It sounds like it will take a full two weeks for it to completely disappear. I can’t believe something that is supposed to be so good for you could cause so much agony to so many. Thank you. Thank you. Thank you.
For recipes on how to make milk free of soy or dairy go to http://www.the-coconut.com. This is a free ebook full of wonderful milk-making recipes that you can do at home quickly and easily.
Russell Eaton
Thanks for your sharing.
I have the same situation. My breasts are dense and sometimes I feel pain. I thought it was because of my exercising. So I try to avoid swimming and running.
Now I will try to keep away from soy bean product to see if the situation will change.
You are right on, girl! I spent half a day in a heart specialist’s office thinking the terrible pain in my chest area was an oncoming heart attack just waiting to happen. The interesting thing is that the pain always occurred after I ate. I Praise God that my heart is normal and well. The doctor was caring enough to listen to what my concerns were [too high of a soy protein intake (I enjoyed that K---- Cereal way too much)]. He ran several tests even though my heart rate and blood pressure were normal. His diagnosis after making sure my heart was well was that soy was most likely causing breast tenderness. Its excruciating! Depending what I eat determines if that pain is present.
Thanks for sharing!
WAIT!
No, not those of you talking about soy *milk* specifically, which has also been linked to endometriosis, which is why I no longer drink it… BUT I think there’s a huge problem here with pretty much everyone, including the media, talking about ‘soy and soy products’ in one breath.
Everything I’ve read (from reliable sources) has supported the hypothesis that soy closer to its natural state – ie tofu and tempeh, which Asian cultures have been eating for hundreds of years – *are* very good for you. However, highly processed soy products – which would include soy milk, and the various western ‘meat alternatives’ are *not* good for you. The processing removes much of the benefit, and of course other ingredients are added that are *not* good for you. (See http://www.endo-resolved.com/soy.html for more info)
It really coincides with much of the thinking these days, that more natural, unrefined, less processed foods are much much healthier than highly processed ones, but this is particularly true of soy products. (I found this out while researching dietary alternatives to the surgery I was recomended for endometriosis, btw).
Just as an FYI, the main culprit for much of the pain I’ve always suffered when I get my periods (and we’re talking debilitating, agonizing pain every month for the last….ooh… 27 years now) turned out to be wheat! I think there are a lot of foods we’re eating in the West that are actually highly allergenic and not very good for us after all!
Hope this helps…
Beth
The same thing happened to me! I changed to a vegetarian diet a couple of years ago and increased my intake of “soy burgers” and the like. At about the same time experienced terrible breast swelling and pain. I was convinced that something was terribly wrong and I spent the better part of a year in a state of anxiety and pain. Also, my menstrual cycle became much shorter on most months. I went to two family doctors, an endocrinologist, a breast specialist, went through a mammogram and a breast MRI, and I found no answers. The swelling went down for a couple of months, and when it started up again, I remembered that I had had some sort of soy-based meal the previous day. Then I googled “soy” and “breast swelling” and found other people’s stories.
Americans have been eating soy since the 1960s, no? So why is this not better known by the medical community? Or, perhaps this problem has just started in the past couple of years, because of a different way of processing soy? I now believe that much of the processed “health food” that comes in packages (soy burgers, boxed meals, etc) is mystery meat for the well-intentioned health-conscious. God knows what the ingredients really are.
From now I will stick with fresh veggies, legumes, fruits, and whole grains.
I am very happy for everyone that has found the answer to their breast pain. I really, really wish that more people knew about this, it would save people from so much trouble.
@Beth; Sorry to disappoint, but I don’t think it matters if the soy is highly processed or not – even just an ounce of tofu will put my breasts in severe pain for over a month. However, fermented soy products like tempeh or soy sauce do not bother me at all. I am certain that this is because fermenting destroys the phyto-estrogens within the plant.
@ailu – thanks for that, ailu, that’s interesting – and actually that is what it says on the webpage I referenced! I just hadn’t realized that tofu doesn’t count as one of the soy products that’s not good for you. Apparently, though, the fermented products are the ‘most traditional’ ones – ie from China waaaaay back when – and yes, it’s the fermentation process that makes all the difference. From the site:
‘There are two ‘camps’ for the use of soy in food. There is the traditional, oriental use of soy in fermented soy products. These products are produced naturally and do not contain the same chemicals and toxins of the modern highly processed use of soy. ‘
‘The soybean did not serve as a food in China until the discovery of fermentation techniques, some time during the Chou Dynasty. The first soy foods were fermented products like tempeh, natto, miso and soy sauce.’
‘The Chinese did not eat unfermented soybeans as they did other legumes such as lentils because the soy bean contains large quantities of natural toxins or “anti-nutrients”.’
This blog is really quite an education
Hi Beth,
Well, I don’t know about what the research says, but I can tell you that I personally react to any soy, fermented or not. There seem to be a bazillion websites out there with info on soy, most of it conflicting, and the soy industry in the US is HUGE, with a lot of vested interest and money tied up in it. It’s worth keeping that in mind when looking for information. For me, I can rely on my own personal experience, and that is that I must avoid all soy in order to be pain free.
S.
Strawberry, You are soo right when you say there is a lot of conflicting information! Unbelievable trying to make sense of it all out there… one thing I did find while researching is that even fermented soy has phyto-estrogens, just in a lot lesser degree. Surely this is why you cannot tolerate any soy whatsoever. I’m going to keep an eye on the soy sauce (use it to make beef jerky at home) just to make sure it doesn’t have a cumulative affect on me.
It’s evil that soy milk is even allowed to be called “milk” at all, it has absolutely nothing whatsoever to do with milk.
It’s just white (dyed) unhealthy crap that needed heavy industrial processing to be even palatable. If it would be called “soya liquid” or something, people wouldn’t be led to believe it is a milk substitute, it’s not, it’s just a white-ish liquid! That’s all it has in common with milk!
Every once in a while a few bits of edamame (raw soy form) thrown into a salad won’t hurt. Processed, concentrated soy (tofu, soy sauce, etc) will. Just like any concentrated food; corn versus HFCS, grains versus alcohol, a few olives versus a cup of EVOO, etc. it is the concentration that creates problems.
Processed foods add way too much of too many things, including soy isoflavins, HFCS, fats, sugars, etc. Soy milk is the worst offender!
Very interesting…this is my first time to your site. Do you know about the WEston A. Price Foundation? I think you would like their philosophy a LOT. I follw antoher gal on http://www.Cheeseslave.com and I have gotten so much good information there, I highly recommend them both. Good health to you!
Does soy milk really make breasts bigger?
Lol, Kitty ^^^ its not so awesome.. Soy can make breasts fuller but they huuuruuurt. Wow, I can’ t believe it either. I”ve been doing research on where . our food really comes from and just watched a great movie Food Inc. omg, scary. I am soooo disappointed. I just had my last hoorah of heated up chocolate soy milk with whipped cream. A 6 out of 7 nights of the week bedtime ritual… ): Fckn government.. Not only do I want to rip my nipples off right now, but the PMS mood swing is rediculous, almost lost my job bc of it… what is going on America? Chin up and spread information…
So glad that I came across this article. About 6 weeks ago I found a large lump on my breast. I called the doctor right away and scheduled a gyno appt. for a week or so later. I was very worried and nervous thinking what it could be. I really didn’t know anything about breasts lumps or cysts except that they could be cancerous. The gynocologist didn’t say any real cause and couldn’t tell if it was cancerous. He said I needed to schedule a mammogram and a biopsey and gave me the name of a surgeon. They took me the same day for a mammogram, and the mammogram showed the cyst. She then said I needed a sonogram and that they would do that right away. There was the lump (and several more smaller ones). After showing the radiologist, she came back and said it was a cyst filled with fluid. She assured me it was fairly common and nothing to worry about. I was so thankful to hear that. I never did end up getting the biopsy. My breasts had been extremely tender and very uncomfortable, but didn’t think much about that, since that seems to happen once in awhile. I then came across your site and really related to everything said. I had changed to soy milk for several months and had been making “healthy” shakes and drinking them everyday. Well, after reading this I decided to try giving up the soy. My breasts are not tender anymore and the lump as gone down quite a bit already! When talking to a few other people, they seemed to already know about soy. I was very surprised as I have never heard about this, and soy was never mentioned to me as a possible cause (Caffeine was). Thanks!
i had eaten soy a few times in the past week now my ovaries hurt worse this month than any other time. no more soy for me either