However, artificial sweeteners still appear on the U.S. Food and Administration's " generally recognized as safe" list.

然而，人造甜味剂仍然出现在美国食品和管理局的“公认安全”名单上。

But in the 70s and 80s, the FDA said that drug ingredients already on the shelf could stay if they were generally recognized as safe and effective by medical professionals.

但在上世纪七八十年代，美国食品及药物管理局表示，已经摆在货架上的药物成分，如果被医学专家普遍认为是安全有效的，就可以继续保留。