You should read the Primal Blueprint before you get started. Snacking should not be necessary. If what you are talking about is "recreational eating", then do you really need someone to tell you that it's not good? I suppose if you aren't trying to lose weight, recreational eating could be your way of life (until your insulin receptors burn out and you get fat like the rest of us), but you get more health benefits by giving your digestive system a daily break. You're a human, not a cow.
Female, 5'3", 48, Starting weight: 163lbs. Current weight: 135.
Starting squat: 45lbs. Current squat: 145 x 4.