To avoid essential fatty acid deficiency, fat had to be supplemented to the TPN.

为补充人体必需的脂肪酸，不得不在这种营养液中添加脂肪。

And they're also one of the two essential fatty acids (the other being omega 6) .

它们也是两种基本脂肪酸之一（另一种是欧米伽-6）。

These essential fatty acids, which have been linked to preventing degenerative brain conditions, must come from our diets.

这些和预防退化性脑病变有关的必需脂肪酸，必须来自我们的饮食。

The Soil Association claims organic has many different advantages. For example, organic milk contains 70 percent more essential fatty acids.

土壤协会声称有机食品有许多不同的优点。举例来说，有机牛奶的必需脂肪酸含量高了70%。

He said children need higher requirements for protein and essential fatty acids and that these nutrients must be from animal products.

他称儿童对“蛋白质和必需脂肪酸的需求更高”，而这些营养物质必须来自动物产品。

For example, omega 6 and 3 fatty acids are called essential fatty acids, because your body can't make them, so they have to be ingested.

例如，ω6 和 3 脂肪酸被称为必需脂肪酸，因为你的身体不能制造它们，所以它们必须被摄入。

And they’re also one of the two essential fatty acids (the other being omega 6).

它们也是两种必需脂肪酸之一（另一种是欧米茄 6）。

According to this 2002 paper, “human beings evolved on a diet with a ratio of omega-6 to omega-3 essential fatty acids of approximately 1 to 1 whereas in Western diets the ratio is between 15 to 1 and 16.7 to 1.”

根据这篇2002年的论文，人们饮食中的这两种必需脂肪酸的比例约为1：1，但是在西方饮食中，这个比例是在15: 1和16.7: 1之间。