Originally Posted by
RockDoc
Some just see it as fuel, and they eat carbs (=sugar), otherwise known as "energy". Common, but not so smart.
Nutrition is different from that, and you need nutrition or you will eventually become ill. Basically, there is protein and there is energy (fats, carbs). Protein and fat are essential for health. Carbs are not but they can serve as a fuel source if you are a "sugar burner". Endurance sports become easier if you adapt to become a "fat burner", and burn your own body fat. I recommend that you learn a bit more about all this before you set off with a bag full of top ramen and pop tarts...