Twenty or thirty years ago, thousands of bodybuilders took extracts from plants such as Smilax officinalis [sarsaparilla] and Dioscorea esculenta [wild yam]. These contained the steroid-like diosgenin [structural formula shown here]. And lo: a Japanese animal study published recently in the Journal of Steroid Biochemistry and Molecular Biology suggests that diosgenin does indeed have an […]

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