Biological and Chemical Factors Influencing Food Allergies: A Comprehensive Review

Food allergies have become a significant public health concern, affecting millions worldwide. This comprehensive review explores the multifaceted nature of food allergies, shedding light on the intricate interplay of biological and chemical factors. We delve into the mechanisms of allergen recognition and sensitization, genetic predisposition, and the role of the gut microbiome. Moreover, we examine the influence of food processing techniques, additives, and cross-reactivity in the development and severity of food allergies. Food allergies, an adverse health condition triggered by the immune system's hypersensitivity to certain food proteins, have been rising globally, affecting millions of individuals and posing significant public health challenges. This comprehensive review explores the biological and chemical factors influencing the development, manifestation, and management of food allergies. Key biological factors include genetic predisposition, age, and immune system interactions, such as the roles of immunoglobulin E (IgE) and non-IgE mediated responses. Additionally, microbiota composition and environmental exposures during critical windows of immune development are examined. Chemical factors encompass the molecular structure of allergens, food processing methods, and the presence of food additives and contaminants. Advances in diagnostic techniques, such as component-resolved diagnostics and epitope mapping, along with emerging therapies like immunotherapy and biologics, are discussed. The review emphasizes the need for interdisciplinary approaches integrating molecular biology, immunology, and environmental science to develop effective prevention and treatment strategies. Understanding these complex interactions is crucial for reducing the burden of food allergies and improving the quality of life for affected individuals.