Wild Yam Root (Dioscorea villosa) Wild yam is used for biliary colic, the pain of gallstones, menstrual cramps, arthritic and rheumatic pains, abdominal and intestinal cramps. It is also good for chronic problems associated with gas or flatulence. Wild yam is also beneficial in all cases of nervous excitability as a relaxant and anti-spasmodic. It has an overall effect on liver health due to its ability to lower blood cholesterol levels and lower blood pressure. Wild Yam helps with hot flashes and discharge problems. It has been found to be an excellent preventative of miscarriage and relieves cramps in the uterus during the last trimester of pregnancy. For chronic liver problems and chronic gas, combine two parts wild yam root, one part Oregon grape or barberry root and one-half part each of fennel seeds and ginger. Take as a tea or powder after meals.