There are a wide variety of foods and snacks that will provide you with long lasting satiety and energy to help sustain you through your busy day. There are just a few ideas to get (and keep) you going strong!

Yogurt (try to avoid yogurts that have ‘sugar’ listed in the first few ingredients)
Nuts (almonds, cashews, etc)
Seeds (sunflower, pumpkin, etc)
Whole grain crackers, rice cakes, whole grain toast, etc. with a nut or seed butter topping. And you can make it into a small meal by adding bananas or other fruit adn a drizzle of pure honey.
Cut veggies (carrot sticks, celery, broccoli, sweet peppers, cherry tomatoes, etc) with a small side of low-fat dip (mix light sour cream with low-sodium soup mix for easy home-made dip)
Fresh fruit (grapes, strawberries, sliced melons, apples, oranges, bananas, etc.)
A small salad with whole grains/legumes, such as a couscous & chickpea salad