New Information on Exact Quantities of Total Phytoestrogens

Posted on October 26th, 2016

For many years, there has been a medical controversy whether to eat and to feed your pet foods that contain plant based estrogens (phytoestrogens).

The controversy involves whether phytoestrogens bind the estrogen sites in the body, thus stopping harmful estrogen from other sources from binding these sites; or do the phytoestrogens actually cause a health risk adding to the amount of estrogen occurring in the body, as do xenoestrogens and other estrogen mimickers?

Recent information published by researchers from the University of Toronto measures and lists the actual amounts of phytoestrogens that occurs in many foods we eat and feed our pets.

Past lists of food containing phytoestrogens were rarely measured and if they were, they never included the amounts of nine different groupings of phytoestrogens. The sub groups of phytoestrogens that were measured are as follows:


  • Genistein
  • Daidzein
  • Glycitein
  • Formononetin


  • Secoisolariciresinol
  • Matairesinol
  • Pinoresinol
  • Lariciresinol


  • Coumestrol

I have included in my article Natural Estrogens That Occur in Nutrients, a list of foods published by the University of Minnesota and other websites, and in addition, my own clinical experience.

The following list of foods, for the first time, measures all nine sub-groupings that contain phytoestrogens and measures the actual amount of phytoestrogen each food contains.

Foods Containing Phytoestrogens:

Based on 100 grams of each specific food:

Alfalfa (sprouts) 441

Meats from mammals (ham 2.3, hotdog 3.1, breakfast sausage 1.2)  Note: Please realize that meats and dairy products may be low in phytoestrogens, but contain huge amounts of total mammalian estrogen and should not be consumed in the case of estrogen dominance.

Dates (Dried) 329

Flaxseed 379,380

Garlic 603

Licorice (Black) 862

Oats  (Oat Bran Bread is 13.2)

Olives 39

Pumpkin 5.3

Red beans 10.4

Sesame Seeds 8,008

Soybean Sprouts - 789

Soybeans 103,920

Sunflower Seeds 216

Estrogen Inhibitors - Foods Low in Phytoestrogens and High in Aromatase Inhibitor:

Berries (Blueberries 17.5, Raspberries 47.6, Strawberries 51.6)

Broccoli 94.1

Cabbage 80

Citrus Fruits (Oranges 19, Grapefruit 6.2)

Corn 9

Most Fruits (Peaches 64.5, Banana 2.6, Cantaloupe 7.1)

Green beans – 105.8

Melons (Watermelon) 2.9

Squashes (Zucchini 5.1, Winter Squash 113.7)

White Rice 6.2

White Flour (White Bread is 5.7)


Please remember that the foods listed below that contain meat and dairy products will have a higher estrogen content than listed.

Tofu 27,150

Veggie Burger 1,671

Hummus 993

Almonds 131

Peanut Butter 80

Pistachios 382

Olive Oil 180

Multi Grain Bread 4,798

Doughnuts  2,903

Cookies 3.9

Lasagna  1.4

Pancakes  3.9

Pizza  27

Protein Bar  2,723

Tuna (Canned) 1.3

Milk (Cow) 1.2

Coffee (Regular) 6.3

Tea (Black) 8.9

Orange Juice 8.6

Red Wine 53.9

White Wine 12.7

Hopefully this will give you an idea about foods that contain phytoestrogens to eat or not to eat.

Estrogen deficient humans or animals will actually know the food they need to eat.

Those humans and animals that are estrogen dominate will know the foods to stay away from.

Please also make sure none of these plant foods come from GMO seeds. For more information please go to and under Foods and Supplements, please read the article titled, Effects of GMO’s for You and Your Pet.

Hopefully the information in this article will help keep you and your pet healthier, happier, and live a longer life.


Dr. AL Plechner