Herbs & Botanicals

Wild Yam (Dioscorea villosa): Diosgenin, “Natural Progesterone” Myth, Traditional Use & Safety
Wild yam, Dioscorea villosa, is a native North American medicinal vine whose rhizome contains steroidal saponins including diosgenin. This guide explains its traditional use, the pharmaceutical history of diosgenin, the persistent but incorrect “natural progesterone” claim, menopause research, identification, sourcing and safety. Read more...
Sarsaparilla (Smilax spp.): Root Traditions, Species Confusion, Research & Safety
Sarsaparilla is a herbal trade name applied to the roots and rhizomes of several Smilax species rather than one universally defined botanical. This evidence-aware guide explains the species problem, steroidal saponins, historical uses, limited human evidence, common marketing myths, safety, and how to buy accurately labeled root. Read more...