Differentiating food allergies from food intolerances

Area of Science:

• Immunology
• Gastroenterology
• Pediatrics

Background:

• Adverse food reactions are prevalent, often misattributed solely to allergy.
• Food allergy prevalence, particularly in children, is increasing in North America.
• Common allergens include egg, milk, peanut, tree nuts, wheat, shellfish, and soy.

Purpose of the Study:

• To review and differentiate various forms of food intolerances.
• To distinguish between immunoglobulin E (IgE) and non-IgE mediated reactions.
• To examine non-immune mediated food reactions.

Main Methods:

• Literature review of immune and non-immune mediated food reactions.
• Analysis of clinical manifestations and diagnostic criteria.
• Synthesis of epidemiological data on food allergy prevalence.

Main Results:

• Food reactions encompass allergic (immune-mediated) and non-allergic (non-immune-mediated) categories.
• IgE-mediated reactions include immediate GI hypersensitivity and oral allergy syndrome.
• Non-IgE mediated reactions include celiac disease and gluten sensitivity.
• Non-immune reactions involve digestive, metabolic, and toxicological factors.

Conclusions:

• Accurate diagnosis requires distinguishing between allergic and intolerance reactions.
• Understanding diverse food reaction mechanisms is crucial for effective management.
• Further research into non-IgE and non-immune mediated reactions is warranted.