LiveStrong網站,裡面有一篇文章有提到 A Pound of Fat Vs. a Pound of Muscle Muscle is denser than fat, which means it takes up less space than fat. While you may have heard that muscle takes up one-third the space of fat, the truth is a bit less dramatic. Muscle takes up approximately four-fifths as much space. 意思是你可能有聽過同重肌肉體積是脂肪的三分之一,但是事實是同重肌肉體積是脂肪的五分之四。