Is Soy Bad For You Or Not?

Posted By Amy Goodrich on Nov 11, 2013

Is Soy Bad For You Or Not?


Soy milkFor decades the mainstream media has been telling us how healthy it is to add more soy to your diet. Soy, soy milk and soy flour are in almost all packaged foods today. But is soy really that healthy or has the billion dollar marketing campaigns from big corporates tricked us again and is soy bad for you?

If you take a look into research studies, you may be shocked! There are thousands of studies linking soy to malnutrition, digestive distress, immune system breakdown, thyroid dysfunction, cognitive decline, reproductive disorders, infertility, cancer and heart diseases.

The last one came as a shock to me…. Born with a heart rhythm disorder and high levels of cholesterol, I’ve been told for years to drink soy milk, cook with soy based oil or butter, eat soy based yogurt, add tofu to my diet, etc. So as a dupeable person I fell prey for the misleading commercials and even my doctor advised it to me. So why would I have to doubt the superpowers of soy for my health…


The Shocking Truth, How I Almost Got Breast Cancer Thanks To Soy


Not so long ago I discovered the dark side of the soy industry myself. I don’t eat a lot of meat or fish and lately I was even trying to cut out more. Meaning tofu, soy burgers, soy cheese where more on the menu!

After a few weeks, my both breast were so painful I couldn’t stand to wear a bra any longer. All my breast glands were painfully swollen and the doctor immediately redirected me to the specialist for a mammogram and ultrasound screening.

Luckily for me those lumps and bumps  weren’t breast cancer, but swollen milk glands. They also found lots of calcifications throughout both breast. Having these calcifications (and over-stimulation of milk glands) doesn’t mean cancer, but they can be the onset for it.

Doctors told me it could be soy, coffee, or other things I was eating regularly that caused an imbalance in my hormones. I quit eating soy that day and 2 weeks later all went back to normal. And that’s how I discovered the truth just in time and unfermented soy products are no longer on my menu


is soy bad for you


But What About The Asian People? They Eat Tons Of Soy And Are in Perfect Health! Or is this Just An Illusion?


For centuries Asian people have been consuming fermented soy products such as soy sauce, miso, natto and tempeh and reaping its benefits.

Originally, soy was used as an inedible plant to fix nitrogen in the soil. The ancient Chinese already knew back then that soy contains many toxins. Only after they discovered how to neutralize the toxins through fermentation, they started to use the fermented soy in small amounts, about 9 grams a day, for cooking.

Only recently we started to consume large amounts of unfermented and processed soy products like soy milk, soy cheese, soy burgers and soy ice cream. This was a result of massive investments in the advertising of the soy industry.

Big money has and still is being made with our health at stake! We’ve been manipulated into believing that soy in part of a healthy lifestyle. Processed soy snacks or shakes contain over 20 grams of unfermented soy protein in only one serving.

So in contrary of what we think, Asians only use moderate amounts (about two teaspoons daily) as a condiment, but not as their primary protein source. And all soy products they use are fermented!


Soy products


Soy, A Risky Business For Your Health


Almost all soy products, except for the fermented soy, available on the western market in not a health food.

It has been linked to many disease such as breast cancer, brain damage, thyroid disorders, kidney stones, allergies, infertility, infant abnormalities and many more.


What Are The Hidden Dangers Of Soy


  • Over 80% of the soy grown in the US is genetically modified (GM) to make the soy plant resistance to a toxic herbicides called Roundup. Resulting in an increased yield but loaded with toxic pesticides that end up in our food chain. GM soy has been linked to an increase of allergies an infertility


  • Unfermented soy contains natural toxins, such as saponines, goitrogens, hemagglutinin, oxalates, phytates, protease, estrogens, etc. Hemaglglutinin is a cloth-promoting substance, goitrogens are known to block the synthesis of thyroid hormones, phytates bind to metal ions which prevents the absorption of many minerals and vitamins. When eaten in large amounts, like in our American diets, those toxins can be very dangerous and be the onset of many diseases and allergies.


  • Free glutamic acid (MSG) is formed during the soy processing and more is added to mask the natural bad taste of soy. MSG is a potential neurotoxic compound, which may alter the normal activity of the nervous system in such a way as to cause damage to nervous tissue.


  • Promotes breast cancer, infertility and hormone imbalances. Phytoestrogen mimics and blocks your natural estrogen, disrupting the hormone balance within your body. Did you know the FDA regulates estrogen containing products, but soy is not on their list? A high intake of those phytoestrogens can lead to a testosterone imbalance, infertility, low sperm count and increased risk of cancer for men. For women it can cause estrogen dominance linked to infertility, menstrual issues and cancer.


  • Promotes vitamin B12 deficiency. Soy contains a compound which resembles to vitamin B12, but can’t be used by the human body. So especially among vegans it contributes to a B12 deficiency.


  • Harmful for your children. Soy infant formula, full of estrogens, is being fed to our newborns instead of breast milk. The estrogens in soy milk can harm your baby’s sexual development and reproductive health. Each day your baby is fed soy formula equals feeding it the same amount of estrogens presented in 4 to 5 birth control pills. Soy also contains high levels of manganese, almost 80 times more than in breast milk. This often leads to neurological problems and ADHD.


  • High levels of aluminum found in soy products. During the production process, soybeans are washed with acids in aluminum tanks, which leads to high levels of aluminum ending up in the final product. High levels of aluminum can lead to all sorts of health problems.


Soy beans in bowls


Take Home Message


Although soy can be incredibly healthful, we should pay more attention to it and stop believing the billion dollar sponsored campaigns.

It is only safe in its organic, GMO-free and properly fermented state. … and in moderation (about two teaspoons daily). Only through proper fermentation the toxic compounds are reduced and can be added to your diet to reap the benefits on your digestive system.

Tempeh, miso, natto and traditional made soy sauce are OK. Tofu, soymilk, soy cheese, soy meat, edamame and soy infant formula is not fermented and should be avoided like the plague.

Personally I don’t eat soy or soy based products anymore. The ‘almost-getting-breast-cancer’ scared the hell out of me.


What do you think about soy? Risky business or not? Feel free to share your thoughts or experiences with soy in the comment box below…


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  1. Thank you for your helpful and well informed article.
    I was very fond of soya food (Tofu,soya drink) and relied on it being almost vegetarian but
    after reading your article and other post i stopped it .Instead i will try the fermented one…
    Hope i will like it!

    Post a Reply
    • Your welcome 😉

  2. I’m Chinese. Chinese and Japanese have been have soy for thousands of years and it’s the main protein for us. One of my grandma died at the age of 101 and another one at age 98. It was not the soy’s problem. China has a population of 1.4 billion so it doesn’t cause infertility. We eat tofu of all kinds from Asia market (only organic tofu sold here in CA) almost everyday. i read an article recently soy does every good thing to Asians but opposite to westerners. Specialists still don’t understand why.

    Post a Reply
    • Do you still have the link to that article, would love to read it. I live in Asia and now you mentioned it, it seems indeed that people here eat unfermented soy regularly without any issue. Very interesting fact. Thanks for sharing 🙂

  3. Good evening,I just want to ask if the sweet potato shoots good to lessen Fibroadenoma?

    Post a Reply
    • Hi rose. I’m not sure. Never heard of people eating sweet potato shoots. I’m going to grow my own after we move house and it is an interesting question that I will research more. Have a good day.

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