62. Estrogenic Effect of Soy

62. Estrogenic Effect of Soy

Author: Zane Griggs: Fitness Expert May 24, 2021 Duration: 26:24
Hunger Hunt Feast | Strategic Fitness
HealthHealth & FitnessFitnessNutrition

If you have listened to Hunger Hunt Feast for any amount of time you are already aware of the health issues and dangers around soy and soy products. 

In today's episode, Zane takes a further look into the soy conversation as it regards to women, estrogen, and even pregnancy.

QUICK NOTES FROM ZANE:

  • Isoflavones are know to cause infertility in livestock, birds, pets and humans. Soy is the only plant in our food system that has a significant amount of isoflavones.
  • Effect of soy on fertility
  • Effect of soy on menstrual cycle
  • No benefit of soy in treating symptoms of menopause
  • Soy causes thickening of the lining of the uterus
  • Soy reduces sperm count in humans and animals
  • Worldwide, sperm counts dropped during the 20th century
  • Soy lowers testosterone and sperm count
  • Soy causes lower testosterone, breast enlargement and nipple discharge in men
  • Soy isoflavones can cross the placenta and affect the development unborn children

 

LINKS:

The Whole Soy Story" by Kaayla Daniel

https://www.amazon.com/Whole-Soy-Story-Americas-Favorite/dp/0967089751

Dietary Estrogens- A Probable Cause of Infertility and Liver Disease in Captive Cheetahs:
https://www.gastrojournal.org/article/0016-5085(87)91006-7/pdf

19 Soya--a dietary source of the non-steroidal oestrogen equol in man and animals
https://joe.bioscientifica.com/view/journals/joe/102/1/joe_102_1_008.xml

Biological effects of a diet of soy protein rich in isoflavones on the menstrual cycle of premenopausal women
https://academic.oup.com/ajcn/article-abstract/60/3/333/4731888?redirectedFrom=PDF

Five Studies Showing No Relief Of The Symptoms Of Menopause With Soy Supplementation, Monash University in Australia
https://www.tandfonline.com/doi/abs/10.1080/13697130008500108?journalCode=icmt20

Dept of Food Science and Human Nutrition at Iowa State

https://journals.lww.com/menopausejournal/Abstract/2001/05000/Phytoestrogens_and_healthy_aging__gaps_in.4.aspx

University of Milan https://www.researchgate.net/publication/10766649_Effect_of_soy-derived_isoflavones_on_hot_flushes_endometrial_thickness_and_the_pulsatility_index_of_the_uterine_and_cerebral_arteries

University of Pittsburg
https://pubmed.ncbi.nlm.nih.gov/12113884/

Helsinki University
https://pubmed.ncbi.nlm.nih.gov/12798527/

Endometrial effects of long-term treatment with phytoestrogens: a randomized, double-blind, placebo-controlled study
https://pubmed.ncbi.nlm.nih.gov/15237003/

The oestrogenicity of equol in sheep
https://pubmed.ncbi.nlm.nih.gov/6502066/

Male reproductive toxicology: comparison of the human to animal models
https://pubmed.ncbi.nlm.nih.gov/3289906/

Are oestrogens involved in falling sperm counts and disorders of the male reproductive tract?
https://pubmed.ncbi.nlm.nih.gov/8098802/

First direct evidence that environmental oestrogens affect sperm fertility
https://www.eurekalert.org/pub_releases/2002-07/esfh-fde063002.php

inverse association of soy product intake with serum androgen and estrogen concentrations in Japanese men
https://europepmc.org/article/med/10798211

Effects of replacing meat with soyabean in the diet on sex hormone concentrations in healthy adult males
https://www.cambridge.org/core/services/aop-cambridge-core/content/view/50C464775151BA6ECBF767221F763AFF/S0007114500001872a.pdf/div-class-title-effects-of-replacing-meat-with-soyabean-in-the-diet-on-sex-hormone-concentrations-in-healthy-adult-males-div.pdf

"Moobs" Man Boobs And Soy
https://www.westonaprice.org/health-topics/soy-alert/moobs-man-boobs-and-soy-2/


Detection of phytoestrogens in samples of second trimester human amniotic fluid
https://pubmed.ncbi.nlm.nih.gov/11888703/

Midgestation Intrauterine Exposure of the Human Fetus to Dietary Isoflavones In North America: How Does This Exposure Compare with Animal Studies in Late Gestation and Lactation That Alter Developmental Endpoints? Claude Hughes
https://academic.oup.com/jn/article/130/3/666S/4686190#164168804

Tragedy and Hype: Third International Soy Symposium
https://www.westonaprice.org/health-topics/soy-alert/tragedy-and-hype-third-international-soy-symposium/

Developmental arrest of germ cells in the pathogenesis of germ cell neoplasia
https://pubmed.ncbi.nlm.nih.gov/9524579/

Developmental estrogenization and prostatic neoplasia
https://pubmed.ncbi.nlm.nih.gov/7508622/

 

Questions? You can email your questions to zane@zanegriggs.com.
Connect with me at zanegriggs.com or on Instagram @zanegriggsfitness

 

QUICK EPISODE SUMMARY

  • The estrogen effect of soy
  • What do the studies say vs the market narrative?
  • Natural vs soy supplemented diet in pertaining to animals
  • The impact of soy on fertility in women
  • The impact of soy on fertility in men
  • How soy decreases testosterone in men
  • Dietary soy in pregnant women
  • The risk to benefit ratio of having soy in your diet
  • Ditch the soy

Hosted by fitness expert Zane Griggs, Hunger Hunt Feast | Strategic Fitness digs into a fundamental rhythm that shapes everything we do. It starts with a craving-for better health, a stronger body, or a more fulfilling life. That’s the Hunger. What follows is the strategic pursuit, the Hunt, where plans are made and work gets done. Finally, there’s the Feast, enjoying the tangible results and the satisfaction that comes from earning them. This isn’t just a metaphor for the gym; it’s a lens for viewing business, relationships, and personal growth. Each episode of this podcast unpacks practical, actionable ways to channel that innate drive. You’ll hear conversations that move beyond generic advice, focusing instead on the systems and mindsets that turn a need into focused action, and that action into a reward. It’s for anyone tired of abstract theories and ready to apply a timeless, powerful pattern to their fitness, nutrition, and broader life ambitions. Tune in to transform your hunger into a strategy, and your strategy into a feast.
Author: Language: English Episodes: 100

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