MTHFR Explained for Parents
What it Means and Why it Matters for Your Child’s Health
What is MTHFR?
MTHFR (methylenetetrahydrofolate reductase) is a gene that helps your body use folate (vitamin B9).
It makes an enzyme that turns folate into its active form, which your body actually needs.
This process supports:
• Brain function
• Growth and development
• Cell repair
Why is it Important?
MTHFR plays a key role in something called methylation.
Methylation helps your body:
• Turn genes on and off
• Make neurotransmitters (like serotonin & dopamine)
• Support mood + focus
• Detox + repair cells
What if MTHFR isn’t working well?
Some people have small genetic changes (variants) in MTHFR.
This can lead to:
• Poor folate processing
• Higher homocysteine levels
• Less efficient methylation
Which may affect overall health and development.
What has it been linked to?
Reduced MTHFR activity has been associated with:
• Mood challenges (anxiety, depression)
• ADHD
• Autism
• Cardiovascular health concerns
Important: This is not a diagnosis—just one piece of the puzzle.
What should parents know?
Not every child with an MTHFR variant has problems.
But supporting the body can help:
• Prioritize whole-food sources of folate
• Support gut health
• Reduce toxin exposure
• Work with a provider who understands methylation
It’s about supporting the system—not “fixing” a gene.
First: Start with Food
Food is the foundation
Focus on natural folate-rich foods:
• Leafy greens (spinach, kale)
• Avocado
• Lentils + beans
• Asparagus
• Eggs
These are easier for the body to use than synthetic folic acid
Key Nutrients to Support Methylation
MTHFR doesn’t work alone—these nutrients matter:
• Folate (5-MTHF)
• Vitamin B12
• Vitamin B6
• Riboflavin (B2)
• Magnesium
They work together to support healthy methylation
Supplement Support (When Needed)
For some children, targeted support can help:
• Methylfolate (5-MTHF) instead of folic acid
• Methylated B-complex
• B12 (methylcobalamin or hydroxycobalamin)
• Magnesium (calming + supportive)
What to Avoid
Try to limit:
• Synthetic folic acid (in processed foods + some vitamins)
• Highly processed foods
• Excess sugar
These can make methylation less efficient
What Parents Should Know
You don’t need to panic about MTHFR.
Instead:
• Support the body
• Focus on nutrition first
• Personalize supplements if needed
• Ask your provider to do a blood test for MTHFR mutation.
