Some information written by Carol Ballard outlining the differences between aversion, intolerance and allergy.
People with a food aversion may feel sick just a the thought of eating a particular food, they might find it practically impossible to force themselves to take a mouthful of it , believing it will make them sick – they might even break out in a rash. However, the problem is psychological: the belief that food will make them ill brings out physical symptoms. There are dieticians that specialise in treating people with food aversions and can help them to overcome them.
A person with a food intolerance may feel very unwell several hours after eating a particular food. The symptom ms often include sickness, diarrhoea and stomach cramps, and their severity depends on the amount of food eaten- the more a person eats of that food, the worse the symptom will be. Food intolerances occur when s persons body cannot process a food in the normal way.
The most common intolerances are to dairy and wheat. People with an intolerance to a particular food are usually advised to avoid eating it if possible.
A food allergy involves the body’s defence mechanisms. These usually protect the body from dirt, germs and diseases. However, when there is a food allergy, they react to the food as if it is harmful to the body. They spring into action to protect the body from danger – but intact it is this reaction that can be dangerous, not the food! The reaction usually begins very quickly after the person has touched or eaten the food. The symptoms can be more serious tun those of a food intolerance, and involve more body systems. There are various ways in which food allergies can be treated, but most people with an allergy to a particular food need to avoid eating it.
Source: Ballard. C (2008) Explaining Food Allergy. Sydney NSW. Franklin Watts Australia