8. What is the difference between food allergy and food intolerance?
It is common to confuse the terms food allergy and food intolerance. However, they do not mean the same thing. Food intolerance, unlike food allergy, does not involve the immune system. Lactose intolerance, trouble digesting the milk sugar lactose, is a common example. Symptoms usually include bloating, abdominal cramps and diarrhoea.
Food allergy, on the other hand, does involve the immune system. It occurs when the body produces IgE antibodies to a certain food. Common symptoms are hives and asthma.