买肉要买有AGA标签的。我家的肉大都在Costco买,那儿的肉好像没有这个标签。
Pork producers aren’t required to tell you they use ractopamine, so don’t bother looking for it on the label. To avoid it, buy from a trusted local farmer, or look for the American Grassfed Association (AGA) logo—AGA-certified meat prohibits the use of ractopamine.
https://www.organicconsumers.org/blog/controversial-drug-ractopamine-back-news-and-still-your-food