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Updated: Jun 13, 2021

Histamine is a chemical made by the immune system that is essential to the body. Maybe one of it's main function is to ward off unwanted allergens from the body. This is one way our immune system protects us.

Histamine intolerance occurs when you take in Histamine with foods or drinks and your not able to remove it from the body.

If you have been suspecting some foods are not agreeing with you and have not got anywhere with your research may be you have a Histamine intolerance.

How Do I Know If I Have A Histamine Intolerance?

Here are some common symptoms associated with Histamine Intolerance:

  • Diarrhoea

  • IBS

  • Chronic constipation

  • Stomach cramps

  • Nause

  • Vomiting

  • Flushing of chest and face

  • Headaches

  • Tiredness

  • Weepy eyes, runny nose

  • Eczema

  • Skin rashes

  • Fast heart beating or irregular heart beat

  • Dysmenorrhoea

  • Chills and shivers

  • Low blood pressure

  • Psychological changes

How To Solve Histamine Intolerance?

A good approach to getting on top your symptoms of histamine intolerance is to learn which foods are triggering your symptoms. There are foods that are high in Histamine and those that are low. There are also foods that release histamine and those that block an enzyme in the gut called diamine oxidase (DAO) for short that clears histamine from the body.

Apart from diet there are Nutritional supplements that can help bring relief to this condition also.

Which Foods are High in Histamine?


Pickled, canned and fermented foods

Aged cheeses

Cured meats, smoked foods

Beans and pulses

Citrus fruits



Food kept in fridge especially animal proteins or fish


Some nuts

Foods That Release Histamine

Kiwi, pineapple, plums, papaya



Wheat germ


Beans & pulses

Can I Test For Histamine Intolerance?

It is possible to test for DAO and Histamine and also the histamine/DAO ratio via a blood test. You can also get your genes tested to see if you have snips on your DAO or HNMT gene that is responsible for histamine in the lungs and the nervous system. Identifying if you have a genetic weakness in any of these pathways can be beneficial to understand how to deal with your health issues.

Can Nutrition Help With Histamine Intolerance?

Absolutely! There are key nutrients involved in the degradation of Histamine. Supporting your body with the correct nutrients such as:

  • Vitamin B6

  • Vitamin C

  • Zinc, Copper, Magnesium, Manganese

  • Vitamin B1, B12 , Folate

Having an optimum methylation and good gut health are also key to healthy histamine balance.

Are There Supplements I Can Take For Histamine Intolerance?

  • DAO enzyme

  • Non histamine probiotics

  • Quercetin

  • Luteolin

  • Vitamin C can be helpful

If you need help with a Nutritional approach or investigate your health concern further get in touch.

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