COUMESTROL Content of Foods

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Food NameCoumestrol
Clover sprouts, raw14.079
Kala chana, mature seeds, raw6.130
Beans, pinto, mature seeds, raw1.805
Alfalfa seeds, sprouted, raw1.596
Mung beans, mature seeds, sprouted, raw0.932
Peas, split, mature seeds, raw0.812
Soymilk, original and vanilla, unfortified0.807
Soybeans, mature seeds, sprouted, raw0.341
Doughnuts, with added soy flour or soy protein0.243
Black bean, sauce0.153
Lima beans, large, mature seeds, raw0.136
Soymilk, original and vanilla, with added calcium, vitamins A and D0.116
Tofu, firm, prepared with calcium sulfate and magnesium chloride (nigari)0.113
Bread, white, commercially prepared, with added soy flour or soy protein0.089
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Usage Note

  • Coumestrol and isoflavone data are calculated per 100g of food weight.
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  • Abbreviations: g = gram, mg = milligram.


What is Coumestrol?

Coumestrol is a natural organic compound in the class of phytochemicals known as coumestans. It has garnered research interest because of its estrogenic activity and its prevalence in some foods, such as soybeans.

Coumestrol was first identified by E. M. Bickoff in alfalfa in 1957. It has since be found in a variety of legumes, soybeans, brussels sprouts, and spinach. Clover and soybeans have the highest concentrations.

Coumestrol is a phytoestrogen, mimicking the biological activity of estrogens.

Isoflavonoids and related compounds such as coumestrol have classically been categorized as phytoestrogens because these environmentally derived substances bind to the estrogen receptor (ER). Assessment of the binding affinities of isoflavonoids for ER and subsequent effects on uterine growth suggest these compounds are less active estrogens than estradiol and therefore may reduce the risk of developing breast or prostate cancer in humans by preventing estradiol binding to ER.

Foods Rich in Coumestrol



Coumestrol (mg)
Foods High in Coumestrol (100 g)

14.08
Clover sprouts, raw

6.13
Kala chana, mature seeds, raw

1.81
Beans, pinto, mature seeds, raw

1.60
Alfalfa seeds, sprouted, raw

0.93
Mung beans, mature seeds, sprouted, raw

0.81
Peas, split, mature seeds, raw

0.81
Soymilk, original and vanilla, unfortified

0.34
Soybeans, mature seeds, sprouted, raw

0.24
Doughnuts, with added soy flour or soy protein

Other Food Sources of Coumestrol



Coumestrol (mg)
Foods Containing Some Coumestrol (100 g)

0.15
Black bean, sauce

0.14
Lima beans, large, mature seeds, raw

0.12
Soymilk, original and vanilla, with added calcium, vitamins A and D

0.11
Tofu, firm, prepared with calcium sulfate and magnesium chloride (nigari)

0.09
Bread, white, commercially prepared, with added soy flour or soy protein

0.09
Formulated bar, POWER BAR, chocolate

0.07
Beans, red, mature seeds, raw

0.05
Bread, whole grain, commercially prepared, with added soy flour or soy protein

0.05
Non-dairy creamer, with added soy flour or soy protein

0.05
Grapefruit, raw, white, all areas

0.05
Asparagus, raw

0.04
Miso soup

0.03
Tea, green, Japan

0.03
Tea, jasmine, Twinings

0.03
Orange juice, chilled, includes from concentrate

0.03
Coffee, brewed from grounds, prepared with tap water

0.02
Seeds, flaxseed

0.02
Soybeans, mature seeds, raw (all sources)

0.02
Soybeans, mature seeds, dry roasted (includes soy nuts)

0.02
Nuts, almonds

0.02
Soy sauce made from soy and wheat (shoyu)

0.01
Beans, common, raw (Phaseolus vulgaris)

0.01
Chickpeas (garbanzo beans, bengal gram), mature seeds, raw

0.01
Nuts, pistachio nuts, raw

0.01
Pigeon peas (red gram), mature seeds, raw

0.01
Cowpeas, common (blackeyes, crowder, southern), mature seeds, raw

0.01
Crackers, crispbread, rye

0.01
Seeds, sunflower seed kernels, dried

0.01
Snacks, granola bars, hard, plain

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