Cross-allergies and histamine intolerance

An allergic reaction is always accompanied by an immunological reaction to a (glyco-)protein, which consequently becomes an allergen. The number of protein families that act as allergens is manageable; nevertheless, so-called cross-reactions occur more frequently because the proteins in an allergen family are related.

Allergen-specific immunoglobulin (Ig)E antibodies are bound in the body. And how does all of this relate to histamine intolerance? We will clarify this for you over the course of this blog post.

Is a food allergy always a cross-allergy?