The symptoms are often similar to other intolerances, so it is rather difficult to diagnose a histamine intolerance (HIT). This can only be done by a specialist by means of a blood test or an omission diary with a food diary. Here you enter the foods you have eaten and the reactions that occur immediately or one day later. Experience has shown that foods with a high histamine content, such as cheese, wine or dark chocolate, trigger severe symptoms.
- Headache can develop into a migraine with aura (e.g. impaired vision etc.)
- Reddening of the skin in the neck and facial area - the so-called flush
- Rhinitis symptoms with runny nose
- Diarrhoea and/or flatulence
- Dizziness and circulatory problems
- Severe tiredness
- abdominal pain
- Concentration problems
The most common symptoms of histamine intolerance
In addition, some life circumstances can strongly promote histamine intolerance
- Too little sleep
- Too much heat (sun)
- Too cold (especially in winter)
- Too much stress, anxiety, restlessness
Medical examination and diet diary Suspected histamine intolerance
The DAO value is examined during a blood test by an internist. (DAO = diamine oxidase, the enzyme that breaks down histamine in the body).
Since the DAO value can fluctuate greatly over time due to external influences (medication, alcohol, histamine-containing food), it is definitely a good idea to keep a food diary.
Enter the following things in it:
- What did I eat?
- When did I eat it?
- How long was the package open or the food cooked? (The longer a food has been open, the more histamine it contains).
- What symptoms do I have immediately afterwards (e.g. after one hour)?
- What symptoms do I have the next day?
How do I eat when I have a histamine intolerance?
If you have one or more reactions to the known histamine-containing foods and drinks, then you should start with an omission diet and eat a strictly low-histamine diet. Histamine-free is actually not possible, as histamine forms with prolonged standing time. If the cooked food has been ready for a long time, for example, or is reheated, the histamine content increases and the food will probably not be tolerated. Many people cannot tolerate food that has been open for a long time.
Foods you should NOT eat if you have a histamine intolerance
- Alcohol in general
- Wine (unless it is labelled as low histamine)
- Energy drinks
- Coffee and black and green tea
- Dark chocolate
- vinegar of any kind
- fermented foods
- dried fruits
- Yeast and yeast extracts
- Cheese (hard cheese, cheese slices)
- rice syrup
- Soy sauce