Food allergy: Past, present and future

Area of Science:

• Allergy and Immunology
• Gastroenterology
• Clinical Medicine

Background:

• Historical recognition of food as a cause of adverse reactions dates back to Hippocrates.
• Early 20th-century medical literature contained sporadic reports of food-induced symptoms.
• Skepticism regarding food allergy diagnosis persisted until the 1970s due to poor correlation with standard skin testing.

Purpose of the Study:

• To review the historical progression of food allergy research.
• To highlight key advancements in the scientific understanding and diagnosis of food allergies.
• To discuss the current state of characterization and treatment strategies for food allergic disorders.

Main Methods:

• Review of historical medical literature and seminal observations in food allergy research.
• Emphasis on the impact of Charles May's work and the introduction of the double-blind placebo-controlled oral food challenge.
• Discussion of advancements in understanding immunopathogenesis, natural history, diagnosis, and management.

Main Results:

• The double-blind placebo-controlled oral food challenge established an evidence-based approach to food allergy study.
• Significant progress has been made in the last four decades in understanding basic immunopathogenic mechanisms and natural history.
• Both IgE- and non-IgE-mediated food allergic disorders are now well characterized.

Conclusions:

• The scientific investigation of food allergy has evolved significantly, moving from anecdotal reports to evidence-based research.
• Current research focuses on characterizing diverse food allergic disorders and developing immunotherapeutic strategies for treatment.
• Continued advancements promise improved diagnosis and management of food allergies.