Researchers at a medical school affiliated with a Chinese University have introduced a novel “fish allergenicity ladder” system aimed at guiding the dietary choices of children with fish allergies. This evidence-based approach draws parallels with existing strategies for managing allergies to milk and eggs, allowing pediatricians to recommend a gradual increase in tolerance levels based on the allergenicity of different fish species.
The study underscores that certain children may exhibit higher tolerance to fish species with lower allergenic profiles, while caution is advised with fish known to contain higher levels of ?-parvalbumin, a protein prevalent in fish flesh but varying in concentration across species.
According to the ladder system, individuals allergic to fish generally show reduced tolerance to catfish and grass harps due to their elevated parvalbumin content. Parents are advised to exercise caution when introducing groupers and herrings, which contain moderate levels of the protein. Conversely, the study highlights an observed increase in tolerance among allergic patients towards fish like salmon and tuna, which exhibit lower concentrations of parvalbumin.
This innovative approach aims to provide tailored dietary guidance for managing fish allergies in children, emphasizing a systematic method to gradually expand their tolerance based on scientific insights into allergen content. The findings suggest promising avenues for enhancing food allergy management and improving the quality of life for affected individuals.