Jarrow Formulas Methyl Folate vs Thorne B-Complex Plus
Side-by-side comparison of scores, ingredients, prices and real customer feedback for Jarrow Formulas Methyl Folate and Thorne B-Complex Plus.
Last verified: 28 Mar 2026 · Based on 64 reviews
Jarrow Formulas Methyl Folate scores 81.0/100 vs Thorne B-Complex Plus at 77.0/100. Jarrow Formulas Methyl Folate wins on effectiveness, value for money. Thorne B-Complex Plus is stronger on ingredient quality and side effects.
Jarrow Formulas Methyl Folate vs Thorne B-Complex Plus: What Does the Data Say?
Vegan Methyl Folate from Jarrow Formulas scores 81.0/100 overall and beats B-Complex Plus from Thorne which lands at 77.0/100. The two products differ sharply in focus and makeup. Vegan Methyl Folate delivers 400 mcg of Quatrefolic (6S)-5-MTHF in 60 veggie capsules as a single nutrient. B-Complex Plus supplies a full range of active methylated B-vitamin forms including high-dose niacin as niacinamide. Effectiveness favours Vegan Methyl Folate at 85.0/100 against 74.0/100 for the Thorne product while ingredient quality sits close with B-Complex Plus edging it 91.0/100 to 90.0/100. Value for money clearly prefers the Jarrow option at 80.0/100 over 62.0/100.
People with MTHFR gene variants who need targeted bioavailable B9 should pick Vegan Methyl Folate. It suits those with confirmed folate deficiency or who want the energy boost and mood improvement many reviewers notice after a few weeks. Choose B-Complex Plus if you have B12 absorption issues or follow a plant-based diet and prefer one product that covers multiple active B vitamins. Budget matters here too since the Jarrow product costs £9.70 while the Thorne option sits at a premium price point.
Practical points separate them nicely. Reviewers praise the small capsule size of Vegan Methyl Folate along with its neutral taste and lack of smell. Some users report anxiety or agitation from it and suggest pairing with B12 and B6 to avoid irritability. B-Complex Plus may trigger GI discomfort in sensitive individuals because of the niacin content. Both come in capsule form and work best when matched to your exact needs.
How Do the Scores Compare?
Vegan Methyl Folate, 400 mc...
Jarrow Formulas
|
B-Complex Plus
Thorne
|
|
|---|---|---|
| Overall Score | 81.0 | 77.0 |
| Effectiveness |
85.0/100
Best
|
74.0/100 |
| Ingredient Quality | 90.0/100 |
91.0/100
Best
|
| Value for Money |
80.0/100
Best
|
62.0/100 |
| Side Effects | 77.0/100 |
81.0/100
Best
|
| Certifications | 35.0/100 |
88.0/100
Best
|
| Best Price |
£9.89
iHerb →
Cheapest
|
View → |
| Form | None | N/A |
| Dose | None | N/A |
| Third-Party Tested | ✗ No | ✗ No |
| Reviews Analysed | 50 | 14 |
Vegan Methyl Folate, 400 mcg, 60...
Pros
- ✓Quatrefolic® (6S)-5-MTHF bypasses MTHFR conversion issues — multiple reviewers specifically chose it for this reason
- ✓Small capsule size consistently praised; neutral taste, no smell
- ✓Energy boost and mood improvement reported by reviewers after a few weeks of regular use
- ✓Clean excipient list — vegetable-source magnesium stearate, HPMC capsule, no unnecessary fillers
Cons
- ✗Can cause anxiety or agitation in sensitive individuals — one reviewer switched to folinic acid specifically because of this
- ✗Works best paired with B12 and B6; some reviewers noted irritability when taken without a B-complex
- ✗Not universally appropriate — one reviewer's doctor advised against the methyl form due to transulfation pathway issues
- ✗No verified third-party testing per product specs
Best For
B-Complex Plus
Pros
- ✓Uses active, methylated B-vitamin forms for superior absorption and bioavailability
- ✓NSF Certified for Sport — independently tested for purity and label accuracy
- ✓Particularly effective for people with MTHFR mutations who cannot convert synthetic folate/B12
- ✓Clean formulation — minimal excipients, no unnecessary fillers or artificial colours
Cons
- ✗Premium price point — significantly more expensive than standard B-complex supplements
- ✗High-dose niacin (as niacinamide) may cause GI discomfort in sensitive individuals
- ✗Available review data for this exact product is sparse and partially from an unrelated company
- ✗Bright yellow urine from riboflavin is normal but can alarm first-time users
Best For
Score Breakdown: Jarrow Formulas Methyl Folate vs Thorne B-Complex Plus
Jarrow's 400 mcg methylfolate uses Quatrefolic® — the glucosamine salt of (6S)-5-MTHF — which the body absorbs without the conversion step that folic acid requires.
What are the key differences?
Frequently Asked Questions
Which is better, Jarrow Formulas Methyl Folate or Thorne B-Complex Plus? ▼
Is Jarrow Formulas Methyl Folate worth the price compared to Thorne B-Complex Plus? ▼
Which has fewer side effects? ▼
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Disclaimer: AIScored provides data-driven comparisons based on publicly available reviews. This is not medical advice. Affiliate links may earn us a commission at no extra cost to you.
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