Objective: To provide basis for the toxicological assessment of American ginseng extract. Methods: Acute toxicity test,bone marrow cell micronucleus test,mice sperm abnormality test,Ames test and thirty-day-feeding test were conducted according to methods in Standard for Testing and Assessment of Health Food. Results: The acute oral MTDs of American ginseng extract on mice were all greater than 10. 0 g /kg BW,belonging to actual non-toxic grade. American ginseng extract in the bone marrow cell micronucleus ...