The immune system responds to a food protein that is consumed or inhaled
The body’s immune system reacts by releasing histamine and other chemicals to attack the protein. These chemicals trigger allergic symptoms like:
The digestive system responds negatively to a particular food.
For instance, a person with lactose intolerance cannot completely digest milk sugar and may experience diarrhea after eating dairy foods. While an intolerance is not an allergy, a customer with a food intolerance may still experience discomfort and wish to avoid consuming certain foods.