Eat Different.

Let's not go nuts: an apple a day is not likely to keep the doctor away.  But maybe the Welsh were onto something.

Raw apples are between 60 and 80 calories, depending on size. They'll give you at least 10% of your recommended daily fiber, and 10% of your Vitamin C.  Apples also regulate your blood sugar and have a low glycemic index.  Even if you aren't diabetic, apples won't give you the dreaded "food coma", a sensation students cannot afford to endure, particularly those enrolled in online colleges (who often have to endure long working hours followed by long studying hours).

Apples are, surprisingly, very filling fruits.  They digest slowly compared to other high-sugar fruits and can keep your brain running through a late lunch.

One of my favorite quick breakfasts requires just two ingredients: one medium apple and two tablespoons of peanut butter.  Slice up the apples and dip away.  Some companies also make "quick packs" of peanut butter in 2 tbsp portions, making this fast snack even faster.

Not into peanut butter?  I don't blame you.  Try a few slices of sharp cheddar.  I know, it sounds a little strange, but the tang of the cheese combines nicely with the subtle sweetness of the apple.

One small recommendation: steer clear of store bought apple sauce and apple juice.  They don't provide quite the same nutritional benefits, and they don't give you that feeling of fullness that a whole apple does.