Symptoms of DAO deficiency
The onset of symptoms may be associated with the consumption of a wide range of foods with variable histamine content. Effects may even appear after the consumption of products with low histamine levels if they are consumed continuously. Hence the difficulty in associating a food with a symptom.
When an accumulation of histamine occurs, certain receptors are activated in the body (H1, H2, H3 or H4) and very diverse symptoms can appear.
At least symptoms of 2 different systems.
Migraine is usually one of the symptoms that the patient highlights the most due to its disabling nature, but DAO deficiency can be diagnosed without it.
Neurological disorders:
migraine or other vascular headaches, ADHD and vertigo.
Respiratory disorders:
non-allergic rhinitis, sneezing and nasal congestion.
Cardiovascular disorders:
hypotension, tachycardia, arrhythmias and dizziness.
Functional gastrointestinal disorders:
dyspepsia, constipation, diarrhea, bloating and cyclical vomiting syndrome.
Dermatological disorders:
atopic dermatitis and urticaria not related to allergic processes.
Locomotor disorders:
fibromyalgia, muscle pain and fatigue.
Neurological disorders: migraine or other vascular headaches, ADHD and vertigo.
Functional gastrointestinal disorders: dyspepsia, constipation, diarrhea, bloating and cyclical vomiting syndrome.
Dermatological disorders: atopic dermatitis and urticaria not related to allergic processes.
Respiratory disorders: non-allergic rhinitis, sneezing and nasal congestion.
Locomotor disorders: fibromyalgia, muscle pain and fatigue.
Cardiovascular disorders: hypotension, hypertension, tachycardia, arrhythmias and dizziness.
