Food allergies are an exaggerated immune response to certain foods that can cause symptoms in both children and adults within 2 hours of eating. Common symptoms include stomach cramps, nasal congestion, itching, fatigue, and skin issues like eczema. Approximately 12 million Americans have food allergies, and each year about 150 people, mostly children and young adults, die from severe allergic reactions called anaphylaxis due to foods like eggs, peanuts, milk, or other triggers. Treatment involves avoiding allergenic foods and carrying epinephrine auto-injectors in case of a reaction.