Hangry" is a combination of hungry+angry, which is a common symptom for many people suffering from acute or chronic hyperglycemia. This also happens when the blood sugar drops and the person gets a rapid onset of hunger accompanied by irritability, fatigue, disorientation, and a foggy mind. Meals consisting of protein and fat are very satiating. The energy your body gets from fat, protein and some glucose from low GI carbs is released slowly and evenly throughout the day. As a result, the blood sugar levels stay stable and you rarely experience energy drops; hunger develops gradually without mood swings.