The only way now for humans to get omega-3s is through taking dietary supplement pills or by eating certain fish. Some fish, however, may have high levels of toxic mercury.

• 现在人类获得omega-3脂肪酸的唯一途径是通过每日饮食的补充片剂,或者吃某些鱼。然而一些鱼可能会含有高含量的有毒汞。