However, what some people don't realize is that the RDA is the minimum protein required to prevent deficiencies.

然而，有些人没有意识到的是，RDA 是预防缺乏症所需的最低蛋白质。

To cope with the loss of American exports of soyabeans, for instance, it has lowered the minimum protein content in pig feed.

例如为了解决美国大豆出口的损失，中国降低了猪饲料中的蛋白质最低含量。