Solgar Folate Metafolin 1000µg vs Thorne B-Complex Plus
Side-by-side comparison of scores, ingredients, prices and real customer feedback for Solgar Folate Metafolin 1000µg and Thorne B-Complex Plus.
Last verified: 01 Mar 2026 · Based on 71 reviews
Solgar Folate Metafolin 1000µg scores 86.0/100 vs Thorne B-Complex Plus at 77.0/100. Solgar Folate Metafolin 1000µg wins on effectiveness, ingredient quality, value for money. Thorne B-Complex Plus is stronger on certifications.
Solgar Folate Metafolin 1000µg vs Thorne B-Complex Plus: What Does the Data Say?
Folate (As Metafolin) 1000µg 60 Tablets from Solgar beats B-Complex Plus from Thorne with an overall score of 86.0/100 against 77.0/100. The main differences sit in their ingredient forms and focus. Solgar uses a single bioactive Metafolin form of folate at 1000µg per tablet while Thorne supplies a mix of active methylated B-vitamin forms including folate. Solgar comes as tablets with no listed dose frequency whereas Thorne offers no clear form or dose details in the data. Effectiveness scores show Solgar ahead at 88.0/100 compared with Thorne at 74.0/100 and ingredient quality sits close yet Solgar leads 93.0/100 to 91.0/100.
People with confirmed MTHFR gene mutations or diagnosed folate deficiency should pick Folate (As Metafolin) 1000µg 60 Tablets since it delivers direct absorption without conversion and users report better blood folate levels plus less fatigue after regular use. Those with B12 absorption issues or who follow plant-based diets will find B-Complex Plus from Thorne more suitable because it covers multiple B vitamins in methylated forms. Budget matters too. Solgar costs £16.94 and scores 73.0/100 on value while Thorne scores lower at 62.0/100 so it feels less attractive on price.
Practical points include the high 1000µg dose in Solgar which sits well above the usual 400mcg adult amount and may need medical advice. Thorne users sometimes mention stomach discomfort from the niacin content. No details appear on taste pill size or allergens for either product.
How Do the Scores Compare?
Folate (As Metafolin) 1000µ...
Solgar
|
B-Complex Plus
Thorne
|
|
|---|---|---|
| Overall Score | 86.0 | 77.0 |
| Effectiveness |
88.0/100
Best
|
74.0/100 |
| Ingredient Quality |
93.0/100
Best
|
91.0/100 |
| Value for Money |
73.0/100
Best
|
62.0/100 |
| Side Effects |
93.0/100
Best
|
81.0/100 |
| Certifications | 70.0/100 |
88.0/100
Best
|
| Best Price |
£11.91
£9.66
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|
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| Form | Tablets | N/A |
| Dose | None | N/A |
| Third-Party Tested | ✗ No | ✗ No |
| Reviews Analysed | 57 | 14 |
Folate (As Metafolin) 1000µg 60 Tablets
Pros
- ✓Bioactive Metafolin® form (L-methylfolate) absorbed directly without MTHFR conversion — critical for MTHFR gene variant carriers
- ✓Multiple reviewers confirmed improved blood folate levels via lab tests, not just subjective feeling
- ✓Widely reported energy improvement and reduction in fatigue after consistent use
- ✓Clean ingredient profile — certified gluten-free, Kosher Parve, no artificial additives; packaged in glass bottle
Cons
- ✗Not third-party tested (e.g. NSF, Informed Sport) — relevant for those needing full verification
- ✗1000mcg dose significantly exceeds the standard adult RDA (400mcg) and pregnancy recommendation (600mcg) — medical supervision advisable
- ✗Premium price point relative to standard folic acid alternatives; 60 tablets is a 2-month supply at 1/day
- ✗Isolated reports of tablets being difficult to swallow for some users
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: Solgar Folate Metafolin 1000µg vs Thorne B-Complex Plus
Solgar's Folate as Metafolin 1000mcg delivers L-methylfolate (5-MTHF) via the patented Metafolin® form — the bioidentical, body-ready form of folate that bypasses the MTHFR enzyme conversion required by standard folic acid.
What are the key differences?
Frequently Asked Questions
Which is better, Solgar Folate Metafolin 1000µg or Thorne B-Complex Plus? ▼
Is Solgar Folate Metafolin 1000µg 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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