If you require more than a day to recover you should either be doing less strenuous exercise or you should be lowering your number of workouts per week. I used

If you require more than a day to recover you should either be doing less strenuous exercise or you should be lowering your number of workouts per week. I used to sit next to a 100+ mile/wk runner and he ate nothing out of the ordinary, just more of it (100miles of running is a 10-14k net calorie increase, depending on who you believe).