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N-Acetyl D-Glucosamine
N-Acetyl D-Glucosamine
No reviews
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Regular price
$24.89 USD
Regular price
Sale price
$24.89 USD
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The full picture
Everything Vyvata knows about this product — the score, the evidence, the FAQ, and where else to find shopper reviews. No hidden data. Every vendor is scored on the same published rubric — no brand can pay for placement. Read the rubric →
58/100
Standard
Six-dimension breakdown
Evidence
55
Formulation
58
Manufacturing
60
Safety
68
Transparency
58
Sustainability
52
Why this scored 58/100
N-Acetyl D-Glucosamine (NAG) — a different molecule than the joint-studied glucosamine sulfate. Evidence for NAG is thin outside of some IBD/mucosal work (Salvatore 2000 in pediatric IBD) and gastric mucin studies; direct OA RCT support is weak. Not the form used in GAIT (Clegg 2006). Held below Verified by evidence gap for the stated form and no clinical-dose justification. Would move to Verified 70+ only with strong mucosal-support positioning and named clinical trials.
Last scored: Full rubric →
Evidence & sources
The Vyvata score's Evidence dimension measures the quality of published RCT support for a product's active ingredients at the label dose. Our source hierarchy: double-blind RCTs in MEDLINE-indexed journals > single-blind RCTs > open-label trials > observational studies > mechanism papers > N=1 case studies (anecdotes). Predatory journals and manufacturer-authored studies without independent replication are weighted down.
Product-specific evidence citations for this item are embedded in the analysis text on the "Analysis" tab. For the full framework and evidence hierarchy, see the methodology page.
How to read the Evidence dimension
- 80–100: Multiple double-blind RCTs in indexed journals directly testing this product OR the exact ingredients at the exact dose.
- 60–79: Single double-blind RCT + supporting ingredient literature at the studied dose.
- 40–59: Open-label trials + ingredient literature; no product-specific double-blind evidence.
- 20–39: Ingredient literature only; no product-specific trials or trials in predatory venues.
- 0–19: No credible evidence base or unverifiable claims.
Frequently asked questions
Auto-generated from Vyvata's scoring data for this product. For general questions about the store (shipping, returns, wholesale), see the site FAQ.
What is N-Acetyl D-Glucosamine?
N-Acetyl D-Glucosamine, categorized under Joint, bone & connective tissue health in the Supplements vertical. It is scored on the Vyvata Scoring Framework — an independent 6-dimension rubric applied uniformly to every product Vyvata lists.
How does N-Acetyl D-Glucosamine score on the Vyvata rubric?
58/100 overall — Standard tier (50–69 band). Per-dimension breakdown: Safety 68, Manufacturing 60, Formulation 58, Transparency 58, Evidence 55, Sustainability 52. Scored as of 2026-08-24.
Why did N-Acetyl D-Glucosamine score in the Standard tier?
N-Acetyl D-Glucosamine (NAG) — a different molecule than the joint-studied glucosamine sulfate. Evidence for NAG is thin outside of some IBD/mucosal work (Salvatore 2000 in pediatric IBD) and gastric mucin studies; direct OA RCT support is weak. Not the form used in GAIT (Clegg 2006). Held below Verified by evidence gap for the stated form and no clinical-dose justification. Would move to Verified 70+ only with strong mucosal-support positioning and named clinical trials.
What are the strongest and weakest aspects of this product?
Strongest: Safety at 68/100 (adverse-event profile, interaction risk, and dose ceiling) and Manufacturing at 60/100 (third-party testing, GMP compliance, and facility audit status). Weakest: Evidence at 55/100 (quality of published RCT support for the active ingredients at the label dose) and Sustainability at 52/100 (sourcing practices, packaging, and corporate practice). All six dimensions feed the overall Vyvata score; a weakness on any one dimension pulls the overall down proportionally.
Is N-Acetyl D-Glucosamine third-party tested?
No third-party certifications (NSF, USP, ConsumerLab, or equivalent) were on record at the time of scoring. This affects the Manufacturing dimension score. The manufacturer may test internally or have obtained certification more recently — check the current product label for the most up-to-date information.
What would move N-Acetyl D-Glucosamine to a higher tier?
Would move to Verified 70+ only with strong mucosal-support positioning and named clinical trials.
Are there higher-scoring alternatives to N-Acetyl D-Glucosamine?
The top-ranked joint, bone & connective tissue health product in the Vyvata catalog is currently Albion Magnesium & Calcium with Vitamins D3 & K2 at 76/100. See the full ranked list of 199 scored products in this subcategory at https://vyvata.com/pages/best-joint-bone-and-connective-tissue-health-supplements-ranked.
What does the Vyvata score mean?
The Vyvata Scoring Framework rates every listed product 0–100 across six dimensions: Evidence, Formulation, Manufacturing, Safety, Transparency, and Sustainability. Tier bands: Elite 85–100 (top-tier evidence + formulation + manufacturing), Verified 70–84 (strong on most dimensions), Standard 50–69 (solid but with weaknesses called out), Rejected 0–49 (specific failures documented). Rejected products remain listed with reasons. Full methodology at https://vyvata.com/pages/methodology.
Where can I read customer reviews for N-Acetyl D-Glucosamine?
The Vyvata score measures product integrity against a published rubric, not customer sentiment. For customer reviews and community discussion, search external platforms directly: Amazon (https://www.amazon.com/s?k=N-Acetyl%20D-Glucosamine),Google(https://www.google.com/search?q=N-Acetyl%20D-Glucosamine+reviews),Reddit(https://www.reddit.com/search/?q=N-Acetyl%20D-Glucosamine%20review),andTrustpilot(https://www.trustpilot.com/search?query=N-Acetyl%20D-Glucosamine).Vyvatadoesnotaggregate,republish,orlicensethosethird-partyreviews.
Customer reviews
Reviews on other platforms
The Vyvata score measures product integrity against a published rubric, not customer sentiment. Vyvata does not aggregate, republish, or license third-party reviews — the links below open search pages on their respective platforms.
All the data we have on this product
Every VSF-related metafield surfaced verbatim. Nothing hidden. If you spot data that looks wrong, let us know.
- VSF score
- 58 / 100
- Tier
- Standard
- Category
- Supplements
- Subcategory
- joint bone connective
- Last scored
- Third-party certifications
- None on record at time of scoring
- Vendor
- Swanson Vitamins
- Tags
- Shopify Collective, Swanson Vitamins
Every score is set from the published rubric, audit-logged, and rescored whenever new evidence emerges (published trials, updated labels, third-party testing releases). Every vendor is scored on the same criteria — no pay-to-play. See our editorial-independence disclosure for the full policy, including brands with an editorial relationship to this site.
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