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Xenoestrogens & Sperm Counts

Endocrine disrupting xenoestrogens in fish may be interfering with male fertility.

December 1, 2009 |
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Sources Cited



Anyways, when you hear about “environmental estrogens” and male fertility they’re not talking about phytoestrogens, they’re talking about xenoestrogens, these humanmade chemicals like PCBs, pesticides that can have estrogenic effects. Where are they found the most? Fish. So it follows that “The highest…concentrations were found in urban fish eaters, followed by rural fish eaters, [then] urban vegetarians, and with the lowest levels in rural vegetarians.”
Here are the sperm counts, fisheaters versus vegetarians.

To see any graphs, charts, graphics, images, and quotes to which Dr. Greger may be referring watch the above video. This is just an approximation of the audio contributed by veganmontreal.

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Dr. Michael Greger

Doctor's Note

Please feel free to post any ask-the-doctor type questions here in the comments section and I’d be happy to try to answer them. And check out the companion video, "Xenoestrogens & Early Puberty." Also, there are 1,449 other subjects covered in the rest of my videos--please feel free to explore them as well!

For more context, check out my associated blog posts: Mercury Testing Recommended Before Pregnancy  Pollutants in Californian Breast Tissue, Why Are Children Starting Puberty Earlier?, and Male Fertility and Dietary Pollutants.

  • Michael Greger M.D.

    Please feel free to post any ask-the-doctor type questions here in the comments section and I’d be happy to try to answer them. And check out the companion video, “Xenoestrogens & Early Puberty.” Also, there are 1,449 other subjects covered in the rest of my videos–please feel free to explore them as well!

  • Nunya Biznez

    Hi, Dr Greger. I’m vegan and love it, and am blood type A. I know people, especially blood type O, who say they NEED meat or their health declines. What do you say to that? I would like to think that no one needs meat and perhaps there’s something wrong that’s making them need meat. Could you shed any light on this for me, as I don’t know how to respond to them other than maybe it’s their blood type (like in the blood type diet). Thank you :-)

    • Gina Pupillo-Kunda

      i’m o neg, have been vegetarian for 20 years, and just recently went vegan :-) blood type diets have no science to back them up

  • Zuppkko

    Endocrine disrupters are also found in other meat products, fruit, vegetables and even water, plastics, cans, …

    Most of them are pesticides wich are sprayed on food, the rest are mostly anticorosive syntetic hormones used to protect plastic, cans, even glass.

  • June D

    Often a lack of iron absorption may occur when people stop eating meat, due to inadequate digestive secretions. There are only 2 things in existence that facilitate iron absorption….1. Vitamin C. 2. Sufficient Hydrochloric acid in the stomach. Years of processed foods, wheat, dairy, alcohol, coffee, refined sugars etc all take their toll on our digestive health, affecting hydrochloric acid and enzyme secretion. Taking probiotics and herbal digestive blends such Ginger & Gentian, coupled with a healthy, clean diet, will restore digestive function & enable more iron to be absorbed. Seeing a knowledgeable plant based Naturopath or Herbalist, would be very beneficial in sourcing the correct herbal blend. Liquid herbs are superior to tablet form in this instance, and are very, very effective.