The Effect of Soy on Precocious Puberty

Meat, animal protein, and soymilk (soya milk) can affect premature breast development in girls.

August 29, 2011
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  • Michael Greger M.D.

    Related videos on premature puberty include Hormones in Skim vs. Whole Milk and Xenoestrogens & Early Puberty. And there’s more than a dozen videos on soy, including Soy & Breast Cancer and Soy & Breast Cancer Survival.

    You may also be interested in my blog post today: Soy and breast cancer: an update.

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  • http://www.msadventuress.com MsAdventuress

    This is all such important information. I find myself fighting my own emotions, based on my past assumptions, upon hearing all this research. And it’s all good. Thank you. ♥

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  • http://www.facebook.com/profile.php?id=676800493 Benjamin Stone

    We use soy milk to feed our baby girls!

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  • http://bhami.com/ bhami

    Have their been any studies on the effects of grass-fed organic meat and dairy vs. factory-farmed meat and dairy?

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    • Toxins

      According to T. Colin Campbell, a prominent doctor in the nutritional field, he says that compositionally, conventional meat and organic meat are nearly identical. The difference may be in growth hormones and contaminants but both types of meat cause the same diseases. It’s the animal protein itself that causes harm. All those other contaminants just add on to the load.

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  • jmerrikin

    I have been fielding some questions from a group of about 50 people regarding the Weston A. Price Foundation assertion that consuming soy could be detrimental to one’s health due in part to the high phytic acid content.

    Can anyone please address the nonsense that WAPF has spewed out regarding soy?

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  • http://www.facebook.com/sotcr Roberto Soto Hernández

    Hi Doc. I would like to know about the effects of soy protein (trypsin inhibitors, etc, etc, etc) cuz this conserns me a lot.

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    • aguccione@sbcglobal.net

      There are some confusing info regarding soy and it’s more processed versions.
      Try these video leads.
      - Does Tofu Cause Dementia?
      - Milk Protein vs. Soy Protein
      - Soy Foods & Menopause
      - Soy Hormones & Male Infertility
      - Tofu vs. Tempeh
      - Waistline Slimming Food

      Also check this discussion: http://www.drmcdougall.com/misc/pdf/pdf050400nl.pdf

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  • heatheragee

    I am the mother of 2 little boys (18 months and 2 months). I am breastfeeding my youngest, but am still giving formula (dairy milk based) to my son at night and if he isn’t eating enough during the day. We are transitioning to a whole foods, plant-based diet as a family because of information that we have gleaned from your site (thank you!).

    My question is what, in your opinion, is the BEST milk alternative for older infants and children (that no longer breastfeed). I’ve heard concerning comments about phytoestrogen content in soymilk being harmful to older infants/young children. Is this concern evidence-based?

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  • http://www.clinicalcatalyst.com DrDons

    I would recommend stopping the dairy milk based formula that you are giving your son. The concerns about soy are not evidence based. For information on adverse effects of hormones both male and female in dairy see… http://nutritionfacts.org/videos/dairy-sexual-precocity/. There are other dairy videos on nutritionfacts.org detailing other associations of the consumption of dairy products which are many. A good resource for parents interested in improving their older children’s nutrition is the 28 day pamphlet, Nutrition of Kids, available for free download at http://www.PCRM.org. For infants PCRM’s information sheet is helpful: http://www.pcrm.org/health/diets/vegdiets/vegetarian-diets-for-children-right-from-the-start. Of course each child can have special needs and you need to work with your physicians as needed.

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