Healthy snacks to make upto minimum calories?

Nuts, hummus, greek yogurt...some of my favorites. (:

I'm not sure how you feel about fresh fruit; but I find that Bananas and grapefruit are great calorie fillers.

You shoud be eating every 2-3 hours to keep your metabolism going. Eating 3 "good sized" meals a day with snacks in between is going to overload your metabolism because your meals aren't consistent. When you get your body in a routine of eating similar size meals every 2-3 hours it will get into the habit of digesting the food regularly because it has a basic idea of the amount of food you're going to be bringing in and how often, therefore your metabolism will be on a constant cycle. You want your "meals"/snacks to be about 25 grams of carbs and 2 grams of sugar. I usually don't count calories because every now&then that one snack that you think is healthy because its low in calories is sometimes very high in sugar, and every one knows what happens to sugar...it gets stored as fat if you don't burn it off. Some things that fall into that 25 g carb/2 g sugar area are...serving of triscuits,a yogurt cup,handfull of almonds, Parrillo protein chew bars (go to Parrillo's website to order.They have a lot of flavors&are very yummy), a pack of peanut butter crackers, a hot dog (without the bun), and of course any fruits/veggies.That's all I can think of off the top of my head. Really, just watch out for all of these snacks that claim to be healthy.You'd be suprised, just because they're low in calories doesn't mean they're healthier. Just remember to read the food label!