Thereareagrowingnumberof"part-timevegetarians"inUS.Theseso-called"flexitarians"arevegetarianswhodabbleinmeatandcarnivoreswhoseekoutvegetarianmeals.Theyarenotcommittedvegetarians,motivatedlessbyanimalrightsthanbyagrowingbodyofmedicaldatathatsuggestshealthbenefitsfromeatingmorevegetarianfoods.
美國有愈來愈多「兼職素食者」。所謂「flexitarians」,是指偶爾會淺嘗肉類的素食者,以及不時會吃素食的吃葷者。他們並非堅定的素食者,吃素不是為了動物權益,而是因為愈來愈多醫學數據顯示多吃素有益健康。