If you have a sporty lifestyle oatmeal is great for you, actually also if you don’t. Oatmeal contains lots of carbs, which fill up your glycogen storages. They need to be full to have an intensive workout.
Food is fuel! Like cars, we need to be fueled. Yeah, you are right, we are no cars, we are human beings. The difference is, we humans are fueled by biological energy and cars are fueled by chemical energy.
Nutrition is so important to us, food keeps us lean, food makes us strong, food makes us happy, food is just great! On the other hand, food makes us fat, food makes us sick, food makes us tired.