Found in Fenugreek (Trigonella foenum-graecum), Fadogia (Fadogia agrestis), and Ashwagandha. Fenugreek contains diosgenin, yamogenin, and tigogenin saponins. Fadogia contains fadogia saponins, specifically fadogia glycosides A, B, C, and D. Ashwagandha contains sitoindosides.