Much confusion surrounds food intolerances versus food allergies. Food allergies are an immunologic reaction that involves speciﬁc IgE -- usually to a food protein. For instance, an individual who is allergic to cow’s milk because of a reaction to milk protein has a true food allergy. On the other hand, food intolerances are deﬁned as non-immunologic adverse food reactions. An example is a person who may have intolerance to cow’s milk because of an inability to digest the sugar lactose. Although lactose deﬁciency can lead to gastrointestinal symptoms from an inability to digest lactose, the response would not be classiﬁed as a food allergy, since it is not immune based.
The contents of this website are for informational purposes only and are not intended to be a substitute for professional medical advice, diagnosis, or treatment. Nor does the contents of this website constitute the establishment of a physician patient or therapeutic relationship. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding a medical condition.