Eli5 why are people saying muscle and fat weigh the same?

Question

So I keep seeing people say muscle and fat weigh the same because a lb of each is a lb. But surely a lb of anything is an lb? You need less muscle to reach an lb then you do fat, right?

In: 0

Answer 1

One pound of muscle occupies less space than one pound of fat. This does not change the fact that having one pound of each gives you equal weights of fat and muscle.

Needing less of something to have the same weight of it means that that thing is more dense — so, you’d say muscle is denser than fat.