Next time you're at the grocery store, look for cereals that have more fiber and less sugar — finding a high-fiber cereal is a healthy hack to make a bowl of cereal more filling! Unlike carbs or sugar, fiber cannot be broken down and absorbed in your body, as Mayo Clinic explained. It helps you stay regular in the bathroom, and eating the right amount of fiber each day can help fight type 2 diabetes and heart disease. Fiber also does a good job of lowering cholesterol.

In a test done by Consumer Reports, researchers concluded that cereals like Kellogg's All-Bran Original, Post Grape-Nuts The Original, and Post Shredded Wheat Original Spoon Size are both delicious and filled with all the right nutrients.

"When we eat foods high in fiber [such as whole grains and fruits], combined with a protein source [eggs/egg whites, tofu, cottage cheese, yogurt], we feel fuller longer," registered dietitian Rebecca Solomon told Today's Dietitian. "Toss in some healthful source of fat [eg, almonds, walnuts] and you have a very well balanced breakfast."