Yes, hunger can be dangerous if it lasts too long or is very severe.

Light hunger usually just leads to an uncomfortable stomach, fatigue, difficulty concentrating, or irritability. However, if the body goes too long without food, it can result in low blood sugar, dehydration, dizziness, fainting, electrolyte imbalances, decreased immunity, and even organ damage from severe starvation.

Seek medical assistance immediately if hunger is accompanied by fainting, confusion, extreme fatigue, chest pain, shortness of breath, persistent vomiting, severe dehydration signs, or if it occurs in infants, young children, the elderly, pregnant women, or individuals with diabetes.