Fluids like milk, fruit juice, and plain old water are great for quenching your thirst and can have great health benefits.
Eating food is how most normal humans function, besides the recommended 3 meals per day, we like to eat on the side to take the edge off of our hunger. This instructable is to inform you on what and how to consume a satisfying snack.
Since my mother is a personal trainer, I have a keen knowledge of mineral and vitamin needs. You need to have carbohydrates, fats, and sugars for a good snack. Try pairing together different food for the best results. (by the way, that's my Mom. And no, she's not on 'roids)