A food allergy is different from food intolerance. Except for celiac disease (see Wheat & Gluten below), food intolerances do not involve the immune system. A person with food intolerance is sensitive to certain foods and has difficulty digesting them. Some food intolerances may cause some of the same symptoms as a true food allergy, but they cannot trigger anaphylaxis.
Other symptoms of food allergies include:
- Respiratory symptoms might include difficulty breathing, sneezing, or wheezing
- Skin symptoms can appear, such as hives or eczema
- Digestive symptoms could show as diarrhea, cramping, or nausea