Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. A naturally occurring compound of plants, such as soybeans, or plant products, such as whole grain cereals, that acts like estrogen in the body.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. Any of a range of various compounds found in plants that function similarly to estrogens.

Etymologies

phyto- +‎ estrogen (Wiktionary)

Examples

  • It's full of minerals and it also contains something called phytoestrogen, which has been shown to lower your chances of getting a heart attack.

    CNN Transcript Apr 14, 2007

  • Fennel is a powerful phytoestrogen, that is known to significantly increase levels of estrogen, particularly in women who have lower than normal levels to begin with.

    EzineArticles

  • Scientists are not sure if it’s because the villagers eat a lot of yams (which contain a natural hormone called phytoestrogen that may stimulate the ovaries to produce more eggs) or whether it’s genetics (in which Yoruban women inherit the tendency to release more eggs).

    Chicken Soup for the Soul: Twins and More

  • Lab research has suggested that soy proteins and soy isoflavones -- "phytoestrogen" compounds that are structurally similar to human estrogen -- may help control blood sugar levels.

    Medlogs - Recent stories

  • But when they added genistein (a plant estrogen or "phytoestrogen" present in many dietary supplements) to the mix, the researchers observed a dose-dependent reduction in the effectiveness of the breast cancer drug.

    innovations-report

  • Cornell research shows that phytoestrogen can block estrogen absorption at high doses, thus behaving in the same way as estrogen receptor cells that regulate a woman's estrogen levels.

    Christina Pirello: Real Things You Can Do to Prevent Breast Cancer

  • Cornell also has seen evidence of phytoestrogen affecting the 'communication' pathways between cells, preventing the formation of blood vessels to tumors.

    Christina Pirello: Real Things You Can Do to Prevent Breast Cancer

  • One controversy involves whether soy isoflavones, plant-derived compounds that have very mild estrogen-like (phytoestrogen) activity, can cause, stimulate, or otherwise promote hormone-driven cancers such as prostate and breast cancer.

    Craig Cooper: Soy: When It's Good, When It's Bad, And How To Tell

  • I stopped eating soy when I heard it was a phytoestrogen.

    What do you think of the new breast cancer guidelines? « Dating Jesus

  • One controversy involves whether soy isoflavones, plant-derived compounds that have very mild estrogen-like phytoestrogen activity, can cause, stimulate, or otherwise promote hormone-driven cancers such as prostate and breast cancer.

    Craig Cooper: Soy: When It's Good, When It's Bad, And How To Tell

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