Tung Ta-cheng, M.D., professor at the Taipei Medical College, points out that in 1969 the American scientist J.W. Olney performed experiments on new-born mice, injecting them with 0.2 grams of glutamic acid (the basic component of MSG) per day.
台北醫學院教授董大成指出，一九六○年代，有位美國科學家 Olney，以幼鼠做實驗，每天注射○．二克的膚氨酸（味精的主要成分）。