7/17/11

Allergies and intolerances

    In recent years has seen a significant increase in people who suffer from food allergies and intolerances, passing in a few years from 1-2% to 3-5%. These reactions are probably due to a phenomenon of cross-reactions pollen/fruit, for which people who have respiratory allergy to initially a pollen from a plant or plant group belonging to the same botanical family, can also get to certain foods.
   As is known, the immune system has a mechanism to recognize agents harmful to the organism: antibodies. When the delicate balance of the immune system changes, you may experience excessive reactions, antibodies that give rise to allergies or intolerances.
This last is the most insidious, symptoms, numerous and very different, are difficult to detect. It is therefore practically impossible to arrive at a diagnosis of intolerance from the analysis of the latter.
Allergies and intolerances may occur some time after the coming into contact with antibodies, only when a certain threshold is exceeded.
    For example, a person is intolerant to tomatoes can have the reaction only if one eats more than one, maybe one lunch and one dinner. The day I ate only one might not have symptoms. Moreover also can occur only in the presence of a simultaneous combination of allergens, for example, tomato + cabbage.
By this we understand well how difficult it is to diagnose intolerance.

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