Food allergies can cause a wide range of symptoms, which usually begin immediately or within two hours of eating and include, among others:

Some people with food allergies experience anaphylaxis. You should seek emergency treatment immediately if you experience any anaphylactic symptoms, which include:

  • Hoarseness, throat tightness, or a lump in the throat
  • Wheezing, chest tightness, or trouble breathing
  • Tingling in the hands, feet, lips, or scalp
  • Lightheadedness, fainting or a sudden drop in blood pressure