Allergies are a significant health and socio-economic problem. In addition to drug treatment, prevention plays an even more decisive role. Both primary prevention and secondary prevention are essential (see Prevention). The German Society for Allergology and Clinical Immunology (DGAI) developed an "evidence-based" guideline for this (see table 1).
The risk of developing an allergy is influenced by the time at which potentially allergenic foods are consumed. A meta-analysis with large collectives showed that early exposure (between 4 and 11 months of age) induces oral tolerance for both eggs and peanuts; this relationship is not clear for fish (Lerodiakonou 2016). This is not true for celiac disease.