Food Allergy: Secondary Diseases

The following are the most important diseases or complications that may be contributed to by food allergy: Mouth, esophagus (food pipe), stomach, and intestines (K00-K67; K90-K93). Allergic enteritis (AE; inflammation of the small intestine) and colitis (inflammation of the large intestine) [children with cow’s milk or soy allergy; adults with chicken egg and wheat allergy]. … Read more

Food Allergy: Examination

A comprehensive clinical examination is the basis for selecting further diagnostic steps: General physical examination – including blood pressure, pulse, body weight, height; further: Inspection (viewing). Skin, mucous membranes [allergic contact dermatitis or contact dermatitis (redness and swelling of the skin, itching, burning, development of small vesicles, scaling); urticaria (hives); Quincke’s edema (swelling of the … Read more

Food Allergy: Prevention

To prevent food allergy, attention must be paid to reducing individual risk factors. Behavioral risk factors Diet Unilateral overeating Spices – substance that promotes absorption. Consumption of stimulants Alcohol – substance that promotes resorption Tobacco (smoking) Passive smoking in the womb and in early childhood → risk increase for sensitization to food at ages 4, … Read more

Food Allergy: Symptoms, Complaints, Signs

Symptoms of allergy occur primarily in interface organs that are particularly endowed with immunocompetent cell systems – B and T lymphocytes. These include the gastrointestinal tract, the skin and the mucous membranes of the respiratory tract. According to studies, symptoms are predominantly seen in the skin (43% of cases), followed by respiratory tract (23%), gastrointestinal … Read more

Food Allergy: Causes

Pathogenesis (development of disease) In terms of their triggers, two forms of food allergy are distinguished: Primary food allergy: due to gastrointestinal sensitization to predominantly stable food allergens (e.g., milk and chicken egg whites, soy, wheat, peanut, and tree nuts)Anaphylactic shock due to food allergy (most common trigger of severe anaphylaxis in childhood) In young … Read more

Food Allergy: How does it work?

Food allergy (synonyms: IgE-mediated food allergy; food allergy; NMA; food allergy-immunologic reaction; food intolerance; food hypersensitivity; ICD-10-GM T78.1: Other food intolerance, not elsewhere classified) is a hypersensitivity reaction caused by immunologic mechanisms after food intake. Food allergy is usually an IgE-mediated allergic reaction (type 1 allergy); it may be antibody- or cell-mediated. Two forms of … Read more

Food Allergy: Medical History

Medical history (history of illness) represents an important component in the diagnosis of food allergy. Family history Is there a history of frequent gastrointestinal illness in your family? Social history Current medical history/systemic history (somatic and psychological complaints). Have you noticed any symptoms on the skin such as redness or blistering related to food intake? … Read more

Food Allergy: Or something else? Differential Diagnosis

Endocrine, nutritional, and metabolic diseases (E00-E90). Food intolerances* due to enzymatic intolerances – intolerance due to pathophysiologic disorders such as enzyme deficiency (fructokinase, lactase). Bacterial overgrowth of the small intestine (if necessary, H2 breath test for glucose); the small intestine abkterielle overgrowth (as a cause of food intolerance) should be excluded with positive H2 breath … Read more