When nearly all animals use fat as their primary source of fuel, why do dietary guidelines advise a diet based on carbohydrates for human beings?

Question

Apparently even cows, who eat grass, synthesize fats in their rumen. I could be wrong. Looking for some clarity on this subject. Thanks!

In: Biology

Answer 1

A balanced diet is best. Protein gives energy for a longer time, fat (consumed) is easily burned, and carbs are somewhere in the middle.