Methylfolate
Also known as: Folate, L-methylfolate, 5-MTHF, Metafolin
Overview
Active form of folate for those with MTHFR variants. Critical for methylation and mood.
Frequently Asked About Methylfolate
How much Methylfolate should I take?
When is the best time to take Methylfolate?
Should I take Methylfolate with food?
Does Methylfolate interact with medications?
What does Methylfolate pair well with?
Who should not take Methylfolate?
What are the side effects of Methylfolate?
Dosage
Daily essential
MTHFR, depression, pregnancy
Research & Studies
We haven’t curated landmark studies for Methylfolateyet — one-click into the primary literature here. PubMed (RCTs) is usually the highest-signal starting point.
Mechanism of Action
- • Active folate form
- • Essential for serotonin synthesis
- • Methylation cycle
Evidence Quality
Essential nutrient with clear mood connection
Safety & Contraindications
- • May mask B12 deficiency
- • None, but monitor methylation
- • Irritability
- • Insomnia
- • Anxiety (overmethylating)
Essential for pregnancy
No concerns
Interactions
- • Methotrexate
- • Seizure meds
- • B12 (always together)
- • No interactions
Stacking & Synergies
Buying Guide
- • L-methylfolate form
- • Always take with B12
- • Start low if unsure about methylation
Related Guides
In-depth guides covering Methylfolate — protocols, comparisons, and use cases.
More in Vitamin
Other ingredients in the Vitamin category.
Cite this page
Formulate Research Team. (2026, June). Methylfolate — Evidence-Based Supplement Guide. Formulate Supplement Encyclopedia. https://app.formulate-health.app/learning/supplements/folate-methylfolate
Educational content based on published research and our scoring methodology. Not medical advice — consult a qualified healthcare provider before starting, stopping, or changing supplements, especially if you take medications, are pregnant, or have a medical condition.