What’s so bad about soy?

by | Apr 18, 2008 | Columns, Nourishing Wisdom


Mandala for Peace

Dear Sally,
Can you tell me why your organization is so against soy food products?


Sally’s response:
Confused about soy? Here is a summary of soy dangers:

• High levels of phytic acid in soy reduce assimilation of calcium, magnesium, copper, iron and zinc. Phytic acid in soy is not neutralized by ordinary preparation methods such as soaking, sprouting and long, slow cooking. High phytate diets have caused growth problems in children.

• Trypsin inhibitors in soy interfere with protein digestion and may cause pancreatic disorders. In test animals soy containing trypsin inhibitors caused stunted growth.

• Soy phytoestrogens disrupt endocrine function and have the potential to cause infertility and to promote breast cancer in adult women.

• Soy phytoestrogens are potent antithyroid agents that cause hypothyroidism and may cause thyroid cancer. In infants, consumption of soy formula has been linked to autoimmune thyroid disease.

• Vitamin B12 analogs in soy are not absorbed and actually increase the body’s requirement for B12.

• Soy foods increase the body’s requirement for vitamin D.

• Fragile proteins are denatured during high temperature processing to make soy protein isolate and textured vegetable protein.

• Processing of soy protein results in the formation of toxic lysinoalanine and highly carcinogenic nitrosamines.

• Free glutamic acid or MSG, a potent neurotoxin, is formed during soy food processing and additional amounts are added to many soy foods.

• Soy foods contain high levels of aluminum which is toxic to the nervous system and the kidneys.

The Myths & Truths About Soy as well as our summary of soy dangers are provided on our Soy Alert! trifold brochure (PDF). You may print this at home or at a copy store for mass distribution. If you wish, you can order quantities of professionally printed two-color Soy Alert! trifold brochures for 25 cents each by using the Order Form.

Live well, Sally

photo: Mandala for Peace ©Betty LaDuke | Artist Betty LaDuke works with Heifer International to end world hunger by offering families in need long term solutions that work. One of the cornerstones of Heifer’s approach is “Passing on the Gift”, a cycle of sustainability where people share the offspring of their animals along with their knowledge, resources, and skills to create a circle of self-reliance that reaches around the globe.

  • Earthwalker is the username that PT founder Julie Genser created for her online interactions so many years ago when first creating Planet Thrive.

    Julie's (Earthwalker's) life was derailed over twenty years ago when she had a very large organic mercury exposure after she naively used a mouth thermometer to measure the temperature of just-boiled milk while making her very first pizza at home. The mercury instantly expanded into a gas form and exploded out the back of the thermometer right into her face. Unaware that mercury was the third most neurotoxic element on Earth, Julie had no idea she had just received a very high dose of a poisonous substance.

    A series of subsequent toxic exposures over the next few years -- to smoke from two fires (including 9/11), toxic mold, lyme disease, and chemical injuries -- caused catastrophic damage to her health. While figuring out how to survive day-to-day, and often minute-to-minute, she created Planet Thrive to help others avoid some of the misdiagnoses and struggles she had experienced.

    She has clawed her way over many health mountains to get to where she is today. She is excited to bring the latest iteration of Planet Thrive to the chronic illness community.

    In 2019, Julie published her very first cookbook e-book called Low Lectin Lunches (+ Dinners, Too!) after discovering how a low lectin, gluten free diet was helping manage her chronic fascia/muscle pain.

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