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Home » ARTICLES » CHRONIC ILLNESS » HORMONE BALANCE

Health Effects of Soy: My Story

Bright smiling woman with glasses, Heather Cooan portrait.
Modified: Sep 27, 2022 · Published: Jul 30, 2020 by Heather Cooan, MBA, ONC, FDNP, NTP · This post may contain affiliate links · 5 Comments
Image by PublicDomainPictures from Pixabay

We've heard about soy quite a bit. It's usually touted to be the definition of healthy eating, everyone from Oprah to CNN has been pushing the health benefits of soy. However, the health effects of soy can be quite dangerous.

Soy contains isoflavones, which act similarly to estrogen in the body. I don't know about you, but hormones are bad news in my book. A study published in 1998 in the journal Cancer Research indicates isoflavones promote the growth of human breast cancer cells implanted in rats. Plus, women drinking isoflavone-infused soy drinks have been shown to have an increased proliferation of breast cells. The more breast-cell growth, the greater the risk of tumors.

Research scientists and doctors say that soy and its chemical components may promote cancer, dementia, reproductive abnormalities, and thyroid disorders. ''You don't want to go overboard with soy,'' says Bonnie Liebman, who is director of nutrition at the Center for Science in the Public Interest in Washington, D.C.

The Dark Side of Soy - Bloomberg

If you pay any attention to the food you put in your body you'll know that American's are eating an enormous amount of soy. Always check the ingredients in your food, don't just check out the white box of 'Nutrition Facts'. Really look to see what kind of unpronounceable substances are in the food you eat daily.

Soy derivatives are in most processed foods. You may see them in the form of soybean oil, soy lecithin, MSG, natural flavors, vegetable oil, vegetable proteins, vegetable starch, and many others. It really is alarming, the number of items that contain soy considering soy is one of the most allergenic foods in the world. It's been genetically modified to resist pesticides and never tested or labeled to clue us into what we're eating.

My Story

I suffer from hypothyroidism and this diagnosis was my first clue into the dark side of soy. Before soy came back as moderately reactive on my food sensitivity test, my doctor instructed me to abstain from soy as much as possible. I've never really liked the taste of soy, soybeans, or soy products, so I didn't think I had an issue. I never bought any of the items made from soy like soy meat replacements, tofu, soy proteins, soy milk, or soy ice cream.

Along with hypothyroidism and adrenal fatigue, I've also grappled with severe PMS over the years. I mean you name it, I had it in the symptoms department. Bloating, cravings so strong I had to battle not to eat the couch and every other thing I could find, horrible breast tenderness, and mood swings. I would cry at the drop of a dime, and be spitting nails angry the next minute for no apparent reason. As it turns out, these issues are some of the health effects of soy.

It wasn't until I went paleo and started kicking out all the processed crap and really reading ingredient labels and looking up odd substances like xanthan gum, and MSG to see what they really were and how they were derived that I discovered I was actually eating a lot of soy and I had been for years.

I've been cutting out all sources of soy over the last few months and I've noticed a HUGE improvement in PMS. No more breast tenderness, no more mood swings that would rival the most alpha of gorillas in the Congo, no more tears that come so easy it's like I'm leaking, and no more cravings! This month I didn't even think about chocolate or any of the other junk foods I usually dream about during 'that time of the month', not even my coveted French fry or potato chip.

There has been such a change that my period actually surprised me this month, I didn't have the normal warning signs. Hormones are a terrible thing to play with and I will not mess with them again. Soy is now and forever banned from my diet. The health effects of soy are not to be taken lightly.

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  1. Tracey R says

    April 06, 2010 at 5:13 pm

    Terrific post! I remember first reading about soy as a natural estrogen replacement for menopausal women in the early 90's. That's how it was being marketed in health food stores/natural publications and even medical publications then. If it was strong enough to cushion menopause, I thought, it has no place in my, my childrens', or my husband's bodies. At the time I had no kids, but it made me really wonder when I saw artificial baby milk made from soy.

  2. Dana says

    April 06, 2010 at 5:24 pm

    Yeah, the soy formula is particularly scary to me. I can't imagine why it would ever be necessary. Moms who've fed it to their kids insist the baby has a milk allergy. How is that even possible? How would a mammalian baby survive if it couldn't consume milk? Nobody seems to try to get to the bottom of this, it's just, "switch to soy formula."

    I'm amused the CSPI is warning against soy, though. I mean, they're the ones trying to get us all to be vegetarians and eat low-fat and stuff. What ARE we supposed to eat, CSPI? Nothing?

  3. LinearChaos says

    April 06, 2010 at 5:30 pm

    LOL, Dana the CSPI doesn't care if we eat at all. They just need a cause to trumpet for more mulah.

    They are notorious for flip flopping. I swear they're behind the idea that everything eventually causes cancer!

  4. Alan Jennings says

    April 12, 2021 at 8:51 pm

    Found so much value from your post! Thank you!!

  5. Heather Cooan says

    April 16, 2021 at 8:49 am

    I'm so glad! Estrogen dominance is an epidemic among men and soy is not helping matters!

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Disclaimer: Functional oncology nutrition consulting is not medical nutrition therapy and does not diagnose, treat, manage, or cure any disease. It is intended to support the proper functioning of biological systems as adjunct support to your licensed healthcare provider's treatment plan. Personalized diet, lifestyle, and environmental recommendations aim to optimize well-being but are not a substitute for medical care. Any lab or genetic information used is solely for personalizing diet and lifestyle, not for diagnosing or treating disease. You are required to work with a licensed healthcare provider, including a primary care practitioner and, if you have or have had cancer, a medical oncologist. All recommendations, including supplements and labs, must be approved by your healthcare provider before implementation. Heather Cooan and the other consultants at Soil to Soul Nutrition’s role is to provide support and guidance, not to replace your physician's care.

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