Why do we need to consume fat if excess carbohydrates are ultimately stored as fat?

Question

My understanding is that any carbs that aren’t used for energy are converted and stored as fat. Hypothetically, could a human just survive off of protein and a lot of carbs?

In: 43

Answer 1

There are multiple kinds of fat. We need many of them. Our bodies can convert carbohydrates into some fats, but not all. We also cannot convert every type of fat into every other type of fat. So, we need to consume fats to get the ones we can’t make ourselves. And it can be more efficient to eat a particular kind of fat than making it from other fats or carbohydrates.