Poor Methylation, MTHFR and Histamine Intolerance (2024)

​If you have the MTHFR gene and histamine intolerance, you most likely have poor methylation, especially if you are deficient in B vitamins such as folate, vitamin B2, and vitamin B12.

Having the MTHFR gene mutation, additional SNP’s in the methylation pathway, or poor methylation can contribute to histamine intolerance as the primary function of the methylation pathway is to produce the methyl donor called SAMe (also known as s-adenosyl methionine). SAMe is a cofactor for the HNMT enzyme, which metabolizes intracellular histamine inside the cell.

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Symptoms of poor methylation include histamine intolerance and all the symptoms associated with histamine intolerance. But what is the connection between poor methylation, MTHFR, and histamine intolerance?

The MTHFR gene mutation is 1 of the common SNP’s in the methylation pathway, among others that can decrease the ability of the body to produce SAMe to help with the metabolism of histamine. Someone with SNPs in the MTHFR gene is even more prone to histamine intolerance if there is a deficiency in folate and vitamin B2 from the diet, as these two nutrients are needed for theMTHFRgene to function.

SAMeis a very versatile and precious methyl donor that supports over 200 other functions in the body, including the intracellular metabolism of histamine. A deficiency of SAMe can result in a reduced ability of the HNMT to metabolize histamine, resulting in histamine intolerance symptoms such as asthma, allergies, itchy skin, nasal congestion, headaches, etc.

The MTHFR gene mutation is 1 of the common SNP’s in the methylation pathway, among others that can decrease the ability of the body to produce SAMe to help with the metabolism of histamine.

For the methylation process to work optimally and produce SAMe, B vitamins are required along with magnesium. The primaryB vitaminsneeded for the methylation pathway and production of SAMe are folate (B9), B12, and B2.

Suppose someone has SNP’s in the methylation pathway. In that case, they can be more susceptible to histamine intolerance as having SNP’s in the methylation pathway can cause a decreased ability to produce SAMe.

Vitamin B12 and histamine intolerance

People deficient in vitamin B12 can be prone to histamine intolerance as it is another crucial nutrient required for optimal methylation and production of SAMe.

Vegetarians and vegans often don’t get enough B12, which hinders the body’s methylation pathway and ability to make sufficient SAMe. Eating foods high in magnesium, B12, folate, and B2 is crucial to optimize methylation naturally. Here is thebest diet for someone with an MTHFR gene mutation.

Excess inflammation inhibits the ability of many enzymes to function and thus produce SAMe to support histamine metabolism. With chronic inflammation being present in the body and inhibiting methylation, you can see how symptoms of histamine intolerance can present with the root of the problem connected to poor methylation and the production of SAMe.

Inflammation can come from various sources such as inflammatory foods, hidden infections,SIBO, and a leaky gut.

How to reduce inflammation to improve methylation

Utilizing curcumin which has anti-inflammatory properties, can help to calm down inflammation in the body. Adding in anti-inflammatoryomega three fish oilscan also help to manage inflammation and support optimal methylation. Walnuts, flax seeds, salmon, and chia seeds are other excellent sources of omega 3’s

Optimal Gicontains a blend of 11 herbs and nutrients to help calm down and soothe inflammation that is coming from the gut while promoting the healing of the leaky gut.

Sunflower lecithin for histamine intolerance

Optimal PC, which contains phosphatidylcholine derived from sunflower lecithin, indirectly supports methylation by freeing up the methyl donor SAMe to work elsewhere in the body, such as in the HNMT enzyme. The production of phosphatidylcholine requires SAMe as a cofactor and puts a significant demand on methylation as it uses up a lot of the body’s SAMe. Supplementing with sunflower lecithin frees up SAMe to be available for the HNMT enzyme to metabolize histamine.

B vitamins and histamine intolerance

Optimal multi minus one contains all the b vitamins plus magnesium and zinc to help ensure that all the necessary nutrients are on board so that the methylation pathway can work optimally.Optimal multi minusone does not contain any methylated b vitamins, which many people with histamine intolerance or inflammation may be sensitive to. This multivitamin without the methylated B vitamins is often well tolerated in more sensitive individuals prone to excess inflammation.

As you can see, everything is connected in the body, and getting to the root cause of histamine intolerance can take some detective work. Are you deficient in B vitamins such as vitamin B2, B12, and B9? Is stress causing inflammation and thus slowing down genes in the methylation pathway? What is causing inflammation in the body?

These are some big but worthwhile questions that need to be asked. I highly recommend reading the bookDirty Genesby Doctor Ben Lynch to understand further how our unique genetics can influence our ability to metabolize histamine.

Another primary enzyme that is responsible for metabolizing histamine from food sources is the DAO enzyme. This enzyme is located primarily in the gut to break down extracellular histamine from food.

The best way to initiallyreduce histaminein the body is to avoid foods high in histamine while providing the body with all the nutrients required by the DAO enzyme, HNMT enzyme, and the methylation pathway to work optimally, and that starts with the diet.

Suppose you would like to do genetic testing. In that case, you can order the strategene DNA test kitand get your report personalized to you with clinically relevant SNP’s that may be present in the methylation and histamine pathways.

This post is all aboutwhat you can expect from your strategene report and genetic testing

Poor Methylation, MTHFR and Histamine Intolerance (2024)

FAQs

Can MTHFR cause histamine intolerance? ›

The MTHFR gene codes for an enzyme that is a key player in the folate cycle. This is one source of methyl groups for the methylation cycle. Decreased enzyme activity of MTHFR – combined with a diet lacking in folate or choline – may cause a reduced breakdown of histamine. is --.

What foods should you avoid with MTHFR? ›

Foods to Avoid with MTHFR

Reduce intake of inflammatory foods such as sugar, gluten, refined grains, dairy, trans fats, and processed snacks. Those with gluten sensitivity and MTHFR can suffer a double blow as the symptoms of both can amplify one another. Gluten is also a major cause of inflammation in the gut lining.

Can poor methylation cause gut issues? ›

Research has been beginning (2) to show the link between microbiome imbalances, leaky gut syndrome, and poor methylation. These gut problems can also hinder nutrient absorption, particularly B vitamins, that further perpetuate methylation problems.

Does undermethylation cause high histamine? ›

When not enough of these methylated compounds are being produced, Undermethylation occurs and histamine builds up in the body which in turn supresses the production of the 'happy' chemicals, serotonin and dopamine. The excess histamine also leads to many of the symptoms mentioned above.

What is the root cause of histamine intolerance? ›

Histamine intolerance (HIT) is assumed to be due to a deficiency of the gastrointestinal (GI) enzyme diamine oxidase (DAO) and, therefore, the food component histamine not being degraded and/or absorbed properly within the GI tract.

What autoimmune disease causes histamine intolerance? ›

Mast cell activation syndrome (MCAS) develops when mast cells become overactive and release their contents, which include histamine and other substances that cause inflammation and allergy symptoms.

Are eggs bad for MTHFR? ›

There are lots of foods that are rich in these nutrients that can be easily incorporated into an MTHFR diet. Some of the best sources of choline include: Egg yolks: Egg yolks are one of the richest sources of choline. One large egg contains approximately 147 mg of choline.

What makes MTHFR worse? ›

Alcohol intake can make symptoms worse by inhibiting DNA methylation and increasing the demands of detoxification on the liver.

Does caffeine affect MTHFR? ›

Some methylenetetrahydrofolate reductase (MTHFR) gene polymorphisms are associated with hyper- hom*ocysteinemia. Trials have shown a plasma hom*ocysteine raising effect of coffee.

What is the most common symptom of poor methylation? ›

Fatigue is perhaps the most common symptom of problems with methylation. Other symptoms or conditions can include: Anxiety. Depression.

What are the physical signs of MTHFR in adults? ›

General MTHFR Symptoms
  • Depression.
  • Fatigue.
  • Anxiety.
  • Bipolar disorder.
  • Schizophrenia.
  • Chronic pain.
  • Nerve pain.
  • Headaches and/or migraine.
Aug 14, 2022

How do you fix poor methylation? ›

There are strategies to support and enhance methylation pathways for improved detoxification and longevity: Nutrient-Rich Diet: Consuming healthy foods rich in B vitamins (such as folate, B6, and B12), magnesium, and zinc provides essential nutrients needed for methylation.

What are the symptoms of too little histamine? ›

Histamine Intolerance Symptoms
  • Migraine headaches.
  • Digestive symptoms, such as diarrhea.
  • Flushed skin.
  • Hives or an itchy skin rash.
  • Worsening eczema, or a condition that causes itchy and flaky rashes.
  • Congested, runny, or itchy nose.
  • Red, itchy, or watery eyes.
Jul 17, 2023

What happens when your body produces too much histamine? ›

Histamine intolerance is a condition where histamine builds up in your body. Histamine is a chemical your body naturally makes and that's present in some foods. If your body can't break it down like it's supposed to, it can build up and give you an upset stomach, headache or allergy symptoms.

What is the difference between histamine intolerance and MCAS? ›

Histamine intolerance is specifically related to the body's inability to handle histamine, leading to symptoms when consuming certain foods. MCAS involves a more generalized and severe immune system overreaction, causing a wider array of symptoms that can be triggered by more than just food.

What is the genetic mutation of histamine intolerance? ›

Histidine decarboxylase (HDC) dictates how easily the body can make histamine from the ingested amino acid histidine. When there is a mutation in this gene, histamine levels may rise. Research shows that those who have changes in this gene are more prone to developing allergies and a runny nose as a result(13,14).

What autoimmune diseases are caused by MTHFR? ›

The MTHFR mutation will also cause issues with detoxing properly, as well as issues with hormone balance and immune system function. It has been associated with autoimmune conditions such as fibromyalgia, Hashimoto's, and lupus.

Does folate increase histamine levels? ›

Folic acid (with vitamin B12) can help to raise the histamine level. High histamine (histemia): Vitamin C acts as a modulator on the synthesis and release of histamine in the body: the human blood histamine increases with the decrease of the plasma ascorbic acid.

What conditions are linked to MTHFR? ›

An increase in hom*ocysteine levels caused by MTHFR gene polymorphisms have been studied as possible risk factors for a variety of common conditions. These include high blood pressure (hypertension), blood clots, pregnancy loss, psychiatric disorders, and certain types of cancer.

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