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I work in a job where we can go 4 or 5 hours without a break carrying heavy things up and down 2 or 3 flights of stairs constantly so my body's pretty much 'running on empty' a lot of the time once...

I think we're forgetting that everyones metabolism is different!I deff feel better when i supplement my normal diet with extra protein and i know my muscle mass reduces when i dont!
For others this...