Flushing |
Neuroendocrine tumors |
Itching |
Urticaria, pruritus sine materia, prurigo |
Nausea/vomiting/abdominal pain |
Peptic ulcer disease, hiatal hernia, gastroesophageal reflux disease |
Diarrhea and abdominal pain |
Chronic inflammatory bowel disorders, disorders of carbohydrate metabolism |
(lactose intolerance, fructose malabsorption), celiac disease |
Rhinitis |
Allergic and non-allergic rhinitis of other origin |
Dyspnea, dysphonia |
Allergic and non-allergic asthma |
Hypotension, vertigo, tachycardia |
Anaphylaxis |
Important differential diagnostic information is achieved by the analysis of symptoms with respect to their onset time. Adverse food reactions only considered if the symptoms manifested in less than 4 h from food intake. |