Food sensitivity refers to a non-allergic reaction to certain foods that can cause discomfort or adverse symptoms. Unlike food allergies, which involve the immune system and can lead to severe reactions, food sensitivities typically result in digestive issues, headaches, or fatigue. Common triggers include gluten, dairy, and certain food additives. People with food sensitivities may experience symptoms hours or even days after consuming the offending food, making it challenging to identify the cause. Keeping a food diary can help individuals track their intake and symptoms, aiding in the identification of specific triggers and promoting better dietary choices.