Histamine Intolerance

What is Histamine Intolerance?

Histamine intolerance is a condition where the body is unable to properly break down histamine, a naturally occurring compound involved in various bodily functions such as immune response, digestion, and the regulation of stomach acid. This can lead to an accumulation of histamine in the body, causing a range of symptoms like headaches, skin rashes, digestive issues, and nasal congestion. Histamine intolerance occurs when there is a deficiency in enzymes that break down histamine, particularly diamine oxidase (DAO) and histamine N-methyltransferase (HNMT).

Why is Histamine Intolerance important?

Histamine intolerance is important because it:

  • Can lead to a variety of symptoms that affect daily life, including headaches, hives, digestive discomfort, and nasal congestion.
  • Is often misdiagnosed because its symptoms overlap with other conditions, such as allergies, migraines, and irritable bowel syndrome (IBS).
  • Can be managed by avoiding histamine-rich foods and addressing any underlying enzyme deficiencies or gut health issues.

Understanding histamine intolerance is crucial for managing symptoms and improving quality of life through dietary and lifestyle changes.

How does Histamine Intolerance affect health?

Histamine intolerance affects health by:

  • Causing digestive issues: Excess histamine can trigger symptoms like bloating, abdominal pain, and diarrhoea, which can be similar to IBS or food allergies.
  • Inducing allergic-like reactions: Symptoms such as itchy skin, rashes, and hives may occur due to histamine’s effect on the skin and blood vessels.
  • Triggering headaches and migraines: Histamine can act as a vasodilator, which may cause headaches or migraines in sensitive individuals.
  • Contributing to respiratory symptoms: High histamine levels can lead to nasal congestion, sneezing, and other allergy-like symptoms.

Managing histamine intolerance involves identifying trigger foods and managing symptoms through dietary changes and enzyme supplementation.

How can I manage Histamine Intolerance?

To manage histamine intolerance:

  • Avoid foods that are high in histamine, such as aged cheeses, cured meats, alcohol, fermented foods, and certain vegetables like tomatoes and spinach.
  • Consider taking DAO enzyme supplements to help break down histamine more effectively and reduce symptoms.
  • Focus on eating fresh, unprocessed foods and limit consumption of leftovers, as histamine levels increase in foods as they age.
  • Consult with a healthcare provider to rule out other conditions and get personalised advice on managing histamine intolerance.

Avoiding histamine-rich foods and managing the body’s ability to break down histamine are key strategies for managing symptoms and improving quality of life.

Key Takeaways from a Nutritionist

  • Histamine intolerance occurs when the body cannot properly break down histamine, leading to symptoms such as headaches, skin rashes, and digestive discomfort.
  • Managing histamine intolerance involves avoiding histamine-rich foods, taking enzyme supplements, and addressing any underlying gut health issues.
  • Consult a healthcare provider for diagnosis and advice on managing histamine intolerance effectively.