the big three, protein, carbohydrate and fat,

三大类蛋白质碳水化合物和脂肪
is what people think about a lot when they eat,

是人们高度关注的三项
because most people are thinking,

因为大多数人都会考虑
well grams of carbs or grams of fat and things like that,

食物含有的碳水化合物和脂肪
am I eating enough protein today,

或者今天我摄入足够的蛋白质了吗
and they're not thinking about zinc and phosphorous and potassium

人们不会考虑锌磷钾
which would be the micronutrients.

这些微量元素
And so these are the things people care about a lot

所以大量营养素是人们所关注的
and they're the ones

它们也是
that popular diet books are built around almost exclusively:

现在流行的饮食书籍所围绕的话题
that you should eat low fat, you should eat low carbs, high fat,

类似人们应该吃的低脂或者应该低碳高脂
they're all kinds of permutations of these that exist out there.

各种各样的说法都有