What is MTHFR?
MTHFR stands for methylenetetrahydrofolate reductase, an enzyme that turns folate into methylfolate. Methylfolate is the active form your body uses to recycle homocysteine into methionine, which in turn feeds the methylation cycle. Folate also supports the making of DNA and healthy cell division. Because this enzyme sits at a key junction, its activity can influence how smoothly folate flows through the rest of the pathway.
How your genes play a role
Two common variants, often called C677T and A1298C, can modestly reduce how active the enzyme is. They are very common, and many carriers have normal folate and homocysteine levels. MTHFR also works alongside other genes that handle B12, folate recycling and alternative routes through choline and betaine. Seeing those partners together gives a more balanced view than MTHFR alone.
MTHFR results are often shared online with more alarm than they deserve. A clear, calm explanation helps you understand what your variants may mean for folate and homocysteine, and what they likely do not mean. Many people find it useful when talking with a clinician about diet, prenatal planning or vitamin forms. Your genes are a starting point. Blood markers such as homocysteine, folate and B12 show how the pathway is actually working right now.
What your report shows
Your MTHFR results are explained in plain language in your private EvoDNA account, alongside the other areas in your kit.
- Your MTHFR variantsWhich common variants you carry and how they are generally thought to affect enzyme activity.
- Folate partnersHow your folate recycling genes may complement or offset your MTHFR result.
- B12 connectionYour tendencies for B12 transport and use, which MTHFR depends on downstream.
- Alternate routesHow your choline and betaine genes may provide a second path for homocysteine recycling.
| Gene | What it does | Result |
|---|---|---|
| MTHFR | Converts folate into methylfolate, the active form used to… | Typical |
| MTR | Uses methylfolate and vitamin B12 to turn homocysteine back… | Moderate effect |
| DHFR | Converts folic acid from supplements and fortified foods into… | Typical |
Each result comes with a plain-language explanation and practical points to discuss with your clinician.
Illustration only. Your report reflects your own genetic results.
Genes we analyze
| Gene | Role |
|---|---|
| MTHFR | Converts folate into methylfolate, the active form used to recycle homocysteine. |
| MTR | Uses methylfolate and vitamin B12 to turn homocysteine back into methionine. |
| DHFR | Converts folic acid from supplements and fortified foods into a form the body can use. |
| TCN2 | Makes transcobalamin, the protein that carries vitamin B12 into your cells. |
| TYMS | Uses folate to help build thymidine, one of the building blocks of DNA. |
Full panel: 11 genes
MTHFR, MTR, MTRR, SHMT1, DHFR, TCN2, FOLH1, TYMS, BHMT, PEMT, GNMT
Putting results to use
Many people use their results as a starting point for conversations with their clinician about:
Leafy greens, beans, lentils and asparagus are natural sources of folate.
Some people discuss folic acid versus methylfolate with their clinician.
Homocysteine, folate and B12 tests can show how your pathway is working today.
If you are planning a pregnancy, folate is an especially good topic to raise early.
Questions
Do I need to worry if I have an MTHFR variant?
Usually not. These variants are very common and many carriers are entirely healthy. Your clinician can look at your blood markers to see how your pathway is actually performing.
Should I avoid folic acid?
There is no single answer for everyone. Folic acid is used widely and is recommended in many situations, so any change is best discussed with your clinician.
Why does my report include other genes?
MTHFR works within a larger network. Genes for B12 transport, folate recycling and choline routes all influence how the whole system balances.
Only interested in this area? The Energy & MTHFR Genetic Report is available on its own for $99.00.
