最丰富的铁质来源与动物蛋白，如肝脏(孕妇不宜多吃)，肉类，鸡肉。你也可以从植物性食物中获取铁质。

The best sources of iron come from animal protein, such as liver (not if you are pregnant), meats, or chicken, however you can also get iron from plant sources.

youdao

真正的维生素a只能在动物食品中找到，如鳕鱼甘油、鱼类和甲壳类动物、肝脏、牛油、草食性动物的蛋黄等。

Helps detoxify. True vitamin a is found only in animal foods such as cod liver oil; fish and shellfish; and liver, butter and egg yolks from pasture-fed animals.

youdao