Eating breakfast can help you eat less the whole day. Leptin is a hormone that suppresses appetite. Meg Jordan, PhD., R.N, says that eating breakfast “ensures our body’s leptin production.” Studies correlate that those who eat breakfast, eat fewer calories throughout the day. What’s the best breakfast to eat? You should aim to consume complex carbohydrates, fiber and protein. Here are some of our favorite healthy breakfasts and some suggestions on how to grab a good breakfast even on your busiest mornings.