Editing Soybean (section)

====Other constituents====
Soy contains [[isoflavone]]s—[[polyphenol]]ic compounds, produced by legumes including peanuts and [[chickpea]]s. Isoflavones are closely related to [[flavonoid]]s found in other plants, vegetables and flowers.<ref name=lpi/>

Soy contains the [[phytoestrogen]] [[coumestans]], also are found in beans and split-peas, with the best sources being alfalfa, clover, and soybean sprouts. [[Coumestrol]], an isoflavone [[coumarin]] derivative, is the only coumestan in foods.<ref>{{cite journal |pmid=11823590 |date=February 2002 |last1=De Kleijn |first1=M.J. |last2=Van Der Schouw |first2=Y.T. |last3=Wilson |first3=P.W. |last4=Grobbee |first4=D.E. |last5=Jacques |first5=P.F. |title=Dietary Intake of Phytoestrogens is Associated With a Favorable Metabolic Cardiovascular Risk Profile in Postmenopausal U.S. Women: The Framingham Study |volume=132 |issue=2 |pages=276–82 | journal=The Journal of Nutrition |doi=10.1093/jn/132.2.276 |doi-access=free }}</ref><ref>{{cite journal |pages=S31–S38 |doi=10.1079/BJN2002794 |pmid=12725654 |title=Phyto-oestrogen Database of Foods and Average Intake in Finland |date=June 2003 |last1=Valsta |first1=L.M. |last2=Kilkkinen |first2=A. |last3=Mazur |first3=W. |last4=Nurmi |first4=T. |last5=Lampi |first5=A-M. |last6=Ovaskainen |first6=M-L. |last7=Korhonen |first7=T. |last8=Adlercreutz |first8=H. |last9=Pietinen |first9=P. |journal=[[British Journal of Nutrition]] |volume=89 |issue=5 |s2cid=14175754 |doi-access=free }}</ref>

[[Saponins]], a class of natural [[surfactants]] (soaps), are sterols that are present in small amounts in various [[whole food|plant foods]], including soybeans, other [[legume]]s, and cereals, such as oats.<ref name="Hu">{{cite journal |last1=Hu |first1=Chengshen |last2=Wong |first2=Wing-Tak |last3=Wu |first3=Runyu |last4=Lai |first4=Wing-Fu |title=Biochemistry and use of soybean isoflavones in functional food development |journal=[[Critical Reviews in Food Science and Nutrition]] |date=5 July 2019 |volume=60 |issue=12 |doi=10.1080/10408398.2019.1630598 |pages=2098–2112 |pmid=31272191 |s2cid=195806006 |hdl=10397/101521 |hdl-access=free }}</ref><ref>{{cite journal |pmid=25286183 |pmc=4266039 |year=2014 |last1=Moses |first1=T |title=Metabolic and functional diversity of saponins, biosynthetic intermediates and semi-synthetic derivatives |journal=[[Critical Reviews in Biochemistry and Molecular Biology]] |volume=49 |issue=6 |pages=439–62 |last2=Papadopoulou |first2=K.K. |last3=Osbourn |first3=A |author-link3=Anne Osbourn |doi=10.3109/10409238.2014.953628}}</ref>