If you are getting hungry before the next meal, you might need to increase healthy fats in your breakfast. The first week may be a challenge as you transition from a snacker to a non-snacker. Be patient with the process and know that this is a change/adjustment for your body. You'll want to drink plenty of water (lemon water and herbal tea is fine too) between meals which will also help to keep you full.
Your meals may initially need to be bigger as you make the transition from a sugar burner to a fat burner. Try adding in more healthy fat to your meals…so if you have a salad with 1/4 avocado for lunch and are starving a few hours later, try adding in ½ or full avocado and some additional olive oil dressing to your next meal. Experiment with what works best for your body.