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Do You Have a Histamine Intolerance? Nutrition Can Help!

Do You Have a Histamine Intolerance? Nutrition Can Help!

Histamines, a natural part of your immune system, help rid substances that your body perceives as foreign.

However, if you are a person with food sensitivities you may have an overactive histamine response (overactive defense system), also called histamine intolerance or HIT.

You might get annoying reactions like stuffy nose, red eyes, itchy skin or hives.

Or, your body might respond with more serious stomach pain, diarrhea, and nausea.

The Histamine Cascade Sequence….From Mast Cells to an Out of Control Inflammatory Response

When there is a foreign intruder, the body first sends a chemical signal to a type of white blood cell called mast cells, to release histamines. These mast cells are located in  your skin, lungs, nose, mouth, gut, and blood. When the histamines are released they dock at receptors in your body.

The histamines then send out a signal to boost blood flow in the area of your body affected which in turn launches an inflammatory response.
Inflammation is a natural, healthy response that signals other chemicals from your immune system to step in to do repair work. However, with histamine intolerance, the inflammatory process gets out of control.

How Does Your Body Get Rid of Histamine?

Your body gets rid of histamine by through a chemical reaction that requires an enzyme called DAO (diamine oxidase). You naturally make this DAO enzyme in our intestinal mucosa cells.

However, you can have low enzyme activity for many reasons, including poor gut health and inflammatory GI diseases that affect the integrity of the gut lining. (We also naturally make less DAO as we age.)

The unmetabolized histamine can them enter the bloodstream increasing its plasma concentration. Once located in blood it spreads throughout the body.

— based on information from The International Society of DAO Deficiency

Your Cup Runneth Over

The body’s tolerance for histamines is an additive effect. Many sensitive people may handle smaller amounts of histamine just fine.
In addition to certain foods triggering a histamine response, some foods are also naturally high in histamines.
People with histamine intolerance need to limit their intake of high histamine foods like aged and fermented foods such as aged cheeses, processed luncheon meats, fermented vegetables, red wine and leftover foods.

Diet and Supplements to Manage Histamine Intolerance

I work with clients who have an overactive histamine response. First I help them to manage their symptoms through diet and nutrition supplements.
However, as a functional nutritionist, I also address the underlying root cause of the out of control histamine response and help to restore gut health and support healthy gut microbial ecosystem.
I address the problems at each step of the Histamine Intolerance cascade, on a biochemical and physiological level, short and long-term:
  • reducing intake of high histamine foods
  • stabilizing the mast cells from releasing excessive histamines
  • blocking histamine receptor sites
  • supplementing with or supporting the enzymes like DAO that are responsible for degrading or mopping up excess histamine.
  • nutrigenomics to assess genetic SNPs in methylation related to enzymes that degrade histamine
  • long term restoration of gut health and address symbiosis
Flow Chart on Histamine Intolerance Which I Love!
This flow chart (from www.histamine-intolerance.info) really illustrates the precedents, triggers and potential subsequent cascade of symptoms with Histamine Intolerance and Mast Cell Activation.
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