Food allergies are a common cause of various problems related to absorption by substances normally neutral but that our immune system recognizes as enemy so try to fight them in our bodies and triggering the allergic reaction .” The most common foods can become bitter enemies of our health.
The most common allergies are those to egg, milk and wheat gluten (the so-called ” celiac disease ” ). Sometimes, you can also discover allergic to foods ” unexpected ,” such as the tomato pineapple. Also allergies can cause reactions “crossed ” you can be allergic to more food that is at the same time. It’s easy to understand, how vast this topic and also how complicated it is to be investigated.
The best way to diagnose a food allergy is the skin test, also called ” scratch test “. Throughout this test will be placed extracts of foods ” implicated ” on the skin on the forearm. A scribe with a needle to allow substances to come into contact to the body. If the treated area swells or reddens to know exactly what substances have caused the allergic reaction local.
Another similar test is the so-called ” prick test ” : a needle is injected through a small amount of substance directly under the skin. The result is still the same skin tests are simple and relatively safe. In case one wishes to probe deeper.
It is possible through a blood test, check directly in the laboratory any food allergies later mode is to be preferred in case we are in the presence of very strong allergic reactions, for which it is best to avoid any contact of the substance.
The marks that indicate the type of the blood test are: RAST, CAP-RAST (most recent), ELISA These tests also reveal the amount of ” immunoglobulin ” in the blood, another index of food allergy.