The consumption of various foods can pose challenges for many allergy sufferers, as unpleasant symptoms may arise even when the allergen concentration in the environment is not elevated. In many cases, the symptoms are a consequence of cross-allergy, which is based on the reaction of substances with similar chemical structures. This phenomenon complicates the lives of many allergic individuals, as not only pollen allergies but also foods can cause problems. The essence of cross-allergy is that certain allergens, such as pollens, resemble other substances, making it difficult for the body to distinguish between them. As a result, for already sensitive individuals, allergic reactions can intensify, and even new complaints may…