Overview: Studies have shown that eating within your first two hours of waking affects the way your body regulates glucose levels in your body. If you eat a healthy breakfast, your body is on its way to processing the food and using it to keep you energized up to lunch time. When you skip breakfast, your body’s glucose levels steadily decline and hunger hormones build up. You will feel grumpy and starving until you eat. And when you do eat, your body will be craving sugar and lots of it. This vicious cycle means that without breakfast, you are more likely to increase your overall calorie intake for the day and risk stunting your metabolism.