i dont think your ever too old..i think working out is especially good when u get really old since your still pretty young becuase it tones the muscles and keeps u in shape so u dont break anything as easy things like that. my dads 50 and he workouts u just have to watch yourself. as far as weight lose supplements im not to sure but protien shakes would be great at any age i use ON's protien (if you have a supplement store by u) but u can also buy it online for cheaper but u just have to wait for shipping thats the only down side