Coumestan is a heterocyclic organic compound that is a derivative of coumarin and forms the central core of a variety of natural compounds known collectively as coumestans. These, and isoflavones, flavones, deoxybenzoins and lignans are all classes of phytoestrogens.
Coumestans are oxidation products of pterocarpan and similar to coumarin. Coumestans, including coumestrol, a phytoestrogen, are found in a variety of plants that has oestrogenic activity that is 30 to 100 times greater than that of isoflavones.
Coumestans have been shown to decrease bone resorption and promote the mineralisation of bone. Regular consumption of foods rich in this compound can help treat menopause symptoms and lowers the risk of hip fractures, breast cancer and heart disease.
Natural sources of coumestan in alphabetical order
- Alfalfa sprouts
- Butterbeans
- Clover sprouts
- Soya beans
- Split peas
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