If you have a COMT gene mutation, the first question to ask is, do I have a fast COMT gene or a slow COMT gene? Foods to avoid with a COMT mutation and foods to eat depend on a fast or slow COMT gene.
COMT gene mutation symptoms will present differently depending on whether your COMT gene is fast, slow, or balanced.
The function of the COMT enzyme is to help metabolize estrogen, dopamine, norepinephrine, and epinephrine. The COMT gene also metabolizes catechins from food and drinks.
SAMe and magnesium are the co-factors for the COMT gene to function. If someone is deficient in magnesium or SAMe, the COMT gene can become slow due to a nutritional co-factor deficiency.
Magnesium is one of the most common nutritional deficiencies, and SAMe needs to be produced by the body. The body requires B vitamins, magnesium, and a well-functioning methylation pathway to make the methyl donor SAMe.
SAMe then supports the COMT gene to help metabolize estrogen and stress neurotransmitters. SAMe is available in supplement form, but it is also essential to help the body make it’s own SAMe by eating foods high in B vitamins, especially B12, folate, and B2. MTHFR mutations can result in decreased SAMe production by they body, especially when there is a dietary deficiency of folate or vitamin B 2
Magnesium is an essential mineral needed to make SAMe as well. Inflammation, chronic infections, oxidative damage, and chronic stress slow down methylation thus, reducing stress and inflammation are crucial for optimal methylation as well.
Slow COMT Gene Personality Traits and Symptoms
If you have a slow COMT gene mutation that is balanced, you are:
- focused
- buoyant
- alert
- have a great mood
- are good at learning new things
- are a type-A driven person
If your COMT slow genes become too slow, you can have issues with:
- calming down when stressed
- experience increased anxiety levels
- inability to handle stressful situations
- trouble falling asleep
- high estrogen levels
Slow COMT gene activity and excess estrogen
High estrogen levels due to a slow COMT gene can cause symptoms such as PMS, fibroids, breast tenderness, irregular menstrual periods, and mood swings.
Calcium-d-glucarate helps to support the metabolism of estrogen via the glucuronidation pathway. Metabolizing excess estrogen through the glucuronidation pathway helps to take the load off a slow COMT gene.
Calcium-d-glucarate also helps to prevent the deconjugation and absorption of estrogen that has already been metabolized.
Bacteria in the gut produce an enzyme called beta-glucuronidase that deconjugates estrogen. Estrogen that has been deconjugated must be metabolized by the COMT gene again.
Elevated beta-glucuronidase activity and thus, high estrogen levels are associated with an increased risk of hormone dependent cancers such as breast cancer, prostate cancers, and colon cancers.
Glucaric acid supports the glucuronidation liver detox pathway and is found in many citrus fruits and vegetables, such as:
- oranges
- apples
- grapefruit
- cruciferous vegetables
Someone with a slow COMT gene and high estrogen can also benefit from the supplement DIM+13C for extra support to help lower estrogen levels.
Fast COMT Gene Personality Traits and Symptoms
If you have a balanced fast COMT gene mutation, you are known to be mellow and calm. Your relaxed in stressful situations, sleep well, are fun to be around, and enjoy high adrenaline activities.
When a COMT gene becomes too fast, you can have issues with:
- focus
- memory
- concentration
- experience low moods
- lack of desire to do anything
Many health conditions are associated with COMT gene mutations that are too fast and too slow.
If your COMT is too slow, your stress neurotransmitters stay in your body longer, causing you to feel wired and anxious. On the flip side, if your COMT gene is too fast, you may find it difficult to build up enough “stress” to motivate you to get a job done or stay focused.
Someone with a dirty slow COMT gene is likely to feel anxious and moody. High estrogen levels can also cause a host of hormone-related symptoms.
Foods to avoid with slow COMT genes and how to support a slow COMT
Catechin-containing foods and drinks such as chocolate, wine, coffee, and green tea are metabolized via the COMT gene, and these foods are best avoided if you have a slow COMT. Avoiding these foods will help to take the load off a slow COMT gene.
Taking downtime and implementing ways to destress is crucial to prevent stress neurotransmitters from being released. Releasing stress hormones is a quick way to overload an already slow COMT gene.
Lifestyle changes such as taking time for walks, meditation, and fun can significantly prevent anxiety associated with a slow COMT and stressful life.
A slow COMT can’t do its work efficiently if it is deficient in the nutritional co-factors. SAMe and magnesium are essential nutrients for the COMT gene to function and methylate estrogen and stress neurotransmitters.
Slow COMT gene supplements
Magnesium and SAMe are COMT gene supplements that help to support a slow COMT gene. Taking magnesium can support the body’s ability to have a healthy stress response as it enables the COMT gene to clear stress from the body.
Calcium D glucarate is also beneficial for people with high estrogen levels and a slow COMT gene.
You can learn more about the benefits of magnesium and foods high in magnesium to support the COMT gene. Eating magnesium-rich foods is a crucial nutrient for a slow COMT diet. Additional nutrients required for the production of SAMe include folate, vitamin B2, and vitamin B12. Eating foods high in B2 and folate is the best diet for the MTHFR gene, which is involved in the production of SAMe.
How to support a fast COMT
Eat healthy protein with amino acids at meals and avoid sugar and refined carbohydrates. Increasing protein can help to boost dopamine production for focus and motivation.
Get lots of hugs! Don’t we all need more hugs?! Hugs raise dopamine levels. Someone with a fast COMT gene metabolizes dopamine faster. Thus, hugs are extra beneficial.
To learn more about the COMT gene with in-depth health questionnaires, I highly recommend reading Dirty Genes by Dr. Ben Lynch.
You can also do COMT gene testing with the Strategene DNA test kit which is the best at home genetic testing kit I have come across!

You may also like these articles on genetics
The Best Diet for an MTHFR Gene mutation
Poor methylation, MTHFR and Histamine Intolerance
Symptoms of a PEMT Gene Mutation and Choline Deficiency
References
https://pubmed.ncbi.nlm.nih.gov/12197785/
https://www.ncbi.nlm.nih.gov/gene/1312
https://pubs.acs.org/doi/pdf/10.1021/jf000026%2B
Thank you so much for this interesting and informative article! Learning about genomics has been extremely vaulable in my health journey.
I am so glad you have found this information helpful!
Very helpful indeed
I have been researching comt gene as my Daughter has been diagnosed with a double cont gene mutation
Any advise is really appreciated
Glad you found it helpful! Dirty Genes by Dr Ben Lynch is a great book to read to understand it all further. He is a wealth of knowledge when it comes to genetics such as the COMT gene.