What Is Food Allergy and Hidden Hypersensitivity
Food allergies and various forms of food intolerance affect millions of people worldwide. The body's reactions to common foods can manifest in completely different ways: from mild discomfort to severe systemic symptoms. Modern medicine is actively studying the mechanisms of such reactions, including rare variants of hypersensitivity, such as acute reactions to sulfites contained in certain sauces and beverages [4].
It is important to distinguish true allergy, which involves the immune system (often antibody-mediated), from food intolerance or psychological dietary barriers. For example, food neophobia—the fear of trying new foods—can significantly impoverish the diet of patients with concurrent chronic diseases, such as type 2 diabetes mellitus [1].
The Connection Between Nutrition and Comorbidities
Dietary patterns directly affect not only allergic manifestations but also the course of other pathologies. Studies show that patients with irritable bowel syndrome (IBS) often have specific dietary habits—for example, increased carbohydrate consumption with a decreased interest in dairy products [6]. At the same time, attempts to eliminate foods based on endoscopic tests require careful verification under controlled conditions [3].
In addition, dietary triggers may play a role in maintaining systemic inflammation. In migraine patients, the elimination of foods against which specific IgG antibodies have been detected helps reduce the levels of inflammatory cytokines (such as IL-6 and TNF-α) and improve overall well-being [8].
Eating Behavior Characteristics and Rare Disorders
The study of food reactions also touches upon genetic features. Patients with rare neurodevelopmental disorders associated with MYT1L gene mutations exhibit pronounced eating disorders and a tendency toward early obesity, which requires a deep phenotypic assessment [2].
Special attention is paid to patients with neurological diseases. For example, in multiple sclerosis, the risk of dysphagia (swallowing disorders) often increases, which, combined with changes in body composition and dietary habits, requires constant monitoring of nutritional status [5].
Prevention of Allergies from an Early Age
Issues of preventing food allergy and associated eczema in children are actively studied by pediatricians and dermatologists. Skin barrier dysfunction in early infancy often precedes the development of allergic reactions [7]. Specialists evaluate the effectiveness of various barrier and skin care procedures, but the search for universal preventive measures continues [7].
The main directions of working with food reactions include:
- A thorough medical history collection to identify real allergens or intolerance triggers.
- The use of personalized elimination diets under the supervision of specialists [8].
- Taking into account psychological factors of eating behavior and concomitant somatic diseases [1], [5].
Sources
- 1. Does Food Neophobia Affect Dietary Diversity and Treatment Adherence in Individuals With Type 2 Diabetes Mellitus? PubMed
- 2. Eating behaviour phenotype in the MYT1L-related neurodevelopmental disorder. PubMed
- 3. Individualized Targeted Exclusion Diet Based on Confocal Laser Endomicroscopy Does Not Improve Irritable Bowel Syndrome Symptoms. PubMed
- 4. Acute Sulfite-Induced Hypersensitivity Reaction Following Balsamic Vinegar Consumption. PubMed
- 5. Dysphagia Risk and Its Association with Nutritional Status in Multiple Sclerosis. PubMed
- 6. Dietary intake as a tool to support diagnosis of irritable bowel syndrome. PubMed
- 7. Skin care interventions in infants for preventing eczema and food allergy. PubMed
- 8. Food-specific IgG-based elimination diet decreased IL-6, TNF-α, and CGRP in adults with migraine. PubMed
Disclaimer: The information provided in this article is for reference purposes only and does not replace an in-person consultation with a medical specialist. If symptoms of a food allergy or intolerance appear, you must seek medical attention.