Hypersensitivity reactions to food additives

Area of Science:

• Food science
• Immunology
• Dermatology

Background:

• True allergic reactions to food additives are infrequent.
• Adverse effects often stem from pharmacological or other non-immunological mechanisms.
• Atopic individuals frequently experience food additive reactions, manifesting as dermatitis, rhinitis, and asthma.

Purpose of the Study:

• To review the mechanisms and clinical manifestations of adverse reactions to food additives.
• To differentiate between immunological and non-immunological adverse effects.
• To highlight common symptoms and triggers, including spices and specific chemical additives.

Main Methods:

• Literature review of studies on food additive hypersensitivity.
• Analysis of clinical symptoms and causative agents.
• Examination of the role of atopy and psychological factors.

Main Results:

• Urticaria, angioneurotic edema, and contact urticaria are primary skin reactions.
• Azo dyes, benzoates, and spices are common triggers for urticaria and respiratory symptoms.
• Acetylsalicylic acid (ASA)-sensitive patients may show increased reactivity to certain food additives.

Conclusions:

• Adverse food additive reactions are predominantly non-immunological.
• Skin and respiratory systems are most commonly affected.
• Psychological factors significantly influence reactions to foods and additives.