Food allergies and food intolerances

Food allergies and food intolerances

Food allergies can be divided into 2 groups :

1. Immediate allergies (IgE)

These are allergies that manifest themselves within seconds or minutes after ingestion. They can be identified through testing with fresh food at the lip level or by skin prick tests.

2. Late hypersensitive reactions (IgG)

In this case, the ‘allergic’ reactions manifest themselves with a few hours or days after ingestion and as a result are far more difficult to discover. The diagnosis is done through a blood test. These hyper-sensitive late reactions can be at the origin of many auto-immunitory inflammatory illnesses such as Chron disease, exzema, psoriasis, polyarthritis, asthma, allergic rhinitis.