,,, its not easy ,,, currently i'm eating 5200 a day... and it sucks. . . but you have to train your body to do it,, just like anything else. take your time in upping your cals 500 at a time. give it a good month in between before upping it another 500. otherwise you run the risk of really packing the fat on. ALSO !!! don't forget to eat clean... !!! that means chicken,brown rice, veggies, plain ass oatmeal, your shake (in water)..... basics.