Exercise generally results in eating more to compensate for the extra energy used.  That's just because people are weak and stupid. Just like spending more just because you got a higher paying job.  I eat what I want, and just act mostly reasonable about it, but I burn a lot of calories through exercise. To me, exercise isn't a chore, it's my main mode of having fun. 4,000 calories burned a day is fairly normal, and occasionally it'll be 5k or 6k. Hell, last Friday and Sunday were both 6,400 calorie days for me. I know we can all argue endlessly here about intake vs output, and what's more important, but I'm more of the earn it and spend it type.