Q. FOOD ALLERGY OR AN INTOLERANCE – HOW DO I KNOW?
A. When you have a food allergy, your immune system reacts to a particular food while with a food intolerance, your body has a chemical reaction to eating a particular food or drink. An intolerance won’t show up in an allergy test so that’s the best way to clear up any uncertainty.
Symptoms that occur several hours after a food is eaten – like headaches, bloating, diarrhoea, nausea, hives – are more often caused by an intolerance rather than a food allergy.