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

A pound of rocks is the same weight as a pound of feathers, guess which one takes up more space.