Compound Monograph

Soyasaponins

Soyasaponins are triterpenoid saponins found in soybeans and other legumes.

Classification

Soyasaponins are triterpenoid saponin, part of the terpenoids class. The largest class of plant compounds, built from five-carbon isoprene units — the essential-oil aromatics, resins, bitter principles, saponins, and plant sterols.

Where Does It Come From? (5)

Soyasaponins are naturally occurring triterpenoid saponin, found in Shrubby bushclover, Soybean, Other legumes and 2 other sources. They are well tolerated orally (low toxicity).

Astragalus Astragalus membranaceus LiquoriceOther legumesShrubby bushcloverSoybean

Research & Evidence

Soyasaponins are a group of triterpenoid (oleanane-type) saponins characteristic of soybeans and many other legumes, including Lespedeza species. They are studied for antioxidant and other activities and contribute to the bitter or astringent notes of legume products, but detailed human data are limited.

Toxicity & Safety

Soyasaponins are routinely consumed as part of soy and legume foods and are considered low in toxicity at dietary levels.