Muscle Retention

[sleepstalker]

Can someone explain to me why some dudes can do cardio on a empty stomach or after a workout and see minimal losses in muscle breakdown but some of us will see more of a loss of muscle tissue over fat? I know genetics but how and why? Just find it interesting.

[Zeek]

Are we talking about people using gear or natural?

[sleepstalker]

Natural.

[Zeek]

Hoping 3J will chime in and give a detailed answer.