Equipment Reference
NOW Foods
NOW Foods Methyl Folate 1000 mcg
NOW Foods Methyl Folate 1,000 mcg review — patented Quatrefolic (5-MTHF) tablets for active folate supplementation and MTHFR methylation support.
Quatrefolic 5-MTHF — the folate bottle if folic acid is the wrong form for you
NOW’s 1,000 mcg methylfolate (Quatrefolic) is the cheap 5-MTHF tablet for people who want folate without folic acid. Pair with B12 — high folate can mask B12 deficiency on some panels. Pregnancy dosing is a clinician call, not a Reddit stack. See the methylfolate and B12 guides.
Health Disclaimer
This content is for general informational and educational purposes only. It is not medical advice, diagnosis, or treatment. Consult a qualified healthcare provider before starting any supplement, peptide, or health protocol. Read our full health disclaimer.
Typical price: $10 – $18 USD / 90 tablets
How It Works
Folate is required for one-carbon metabolism and neural-tube closure. Folic acid works for most people. 5-MTHF is reasonable if you want the active form or a clinician specified it. 1,000 mcg is well above food-level intake.
5-MTHF
Methyltetrahydrofolate is the active form. Quatrefolic is the patented salt in this tablet. Most people eating greens do not need 1,000 mcg.
With B12
Folate and B12 share the methionine cycle. If you supplement one at high dose, know the other. NOW methyl B12 is the pair.
Not a Mood Drug
Internet MTHFR protocols are louder than the data. A lab and a clinician beat a haplotype screenshot.
What You'll Experience
If Deficient
WeeksAnemia workups belong in a clinic. Do not megadose because a genealogy site mentioned MTHFR.
If Replete
OngoingNothing subjective. Eat greens; stop the extra tablet.
Benefits
Named Form
Moderate EvidenceQuatrefolic 5-MTHF, not a 25-ingredient prenatal mystery.
Pairs With B12
Strong EvidenceThe one-carbon pair on this site.
Risks & Considerations
Masks B12 Deficiency
high riskHigh folate can normalize anemia while neuropathy progresses. Know your B12.
Pregnancy Is Clinical
high riskPrenatal folate dose and form belong with obstetrics, not an Amazon cart alone.
Community Reviews
Synthesized consensus from Reddit, forums, and expert sources.
NOW methylfolate is a frequent ‘just this form’ pick. The useful reviews mention B12 and a clinician, not a haplotype.
- ·1,000 mcg
- ·Quatrefolic
- ·With B12
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SupplementsVitamin B12 Deficiency: Methylcobalamin, Vegans, Metformin, and Tests
Vitamin B12 is required for myelin, DNA synthesis, and homocysteine handling. Deficiency is a neuropathy and anemia problem — not a focus hack. This guide covers who needs a lozenge, what to test, and why NOW methyl 1,000 mcg is enough for most plant-based eaters.
Read guideSupplementsMethylfolate (5-MTHF) Guide: Daily Dose, MTHFR & Who Should Avoid It
Methylfolate (5-MTHF) is the biologically active form of folate (vitamin B9). How much L-methylfolate should you take daily, when should you take it, and who should not take methylfolate? Typical maintenance dosing is 400–1,000 mcg taken in the morning with breakfast alongside active Vitamin B12 ([NOW Methyl B-12](/equipment/now-foods-methyl-b12)). Never take high-dose folate with an uncorrected B12 deficiency, seizure medications without physician oversight, or methotrexate.
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SupplementsWhat Is TMG (Betaine)? Homocysteine, NMN, and Dose
TMG (trimethylglycine, betaine anhydrous) donates methyl groups and shows up in homocysteine and liver-fat conversations. This guide covers the 1,000 mg NOW tablet and why folate and B12 are still the first methylation bottles — not a 15-supplement stack from a raw DNA file.
Read guideLast updated: 2026-09-22 · Informational only. Not medical advice. Health disclaimer.