Some degree of hunger after exercise is natural. The body fuels and repairs itself with food, after all, and — as mentioned above — intense exercise may naturally cause the body to require more fuel for the rest-and-repair operation.

Is it normal to have increased appetite when working out?

Weight lifting and strength training are likely to leave you with a big appetite afterwards. As your muscle tissue repairs, it cries out for food to help it regain strength. And the more muscle you have, the more hungry you are. So keep your fridge filled with healthy protein rich foods to keep the beasts at bay.

Does exercise make you hungrier?

Long, low-key workouts: hungry

Your body might perceive a long workout as a famine and get hungrier, says Nancy Clark, MS, a Boston-based sports nutritionist. And as you might imagine, prolonged, intense exercise such as endurance running can make you really hungry, even if it's not right away.