Optimum Nutrition
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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 →
Oral GABA has poor blood-brain barrier penetration; most reported effects are attributed to peripheral or gut-brain axis mechanisms rather than direct CNS action (Boonstra 2015 review). PharmaGABA (fermentation-derived) has slightly better small-trial data at 100-200mg. NusaPure sells 1000mg synthetic GABA — high dose of a form that mostly doesn't reach the brain. Would move to Standard 60 with PharmaGABA sourcing and modest 200mg dosing.
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.
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NusaPure GABA - Suitable for Vegetarian/Vegan, Non- GMO - 1000 mg - 240 Tablets is a product from NusaPure, categorized under Stress, mood & mental wellness in the Supplements vertical. It is scored on the Vyvata Scoring Framework — an independent 6-dimension rubric applied uniformly to every product Vyvata lists.
52/100 overall — Rejected tier (0–49 band). Per-dimension breakdown: Safety 60, Transparency 60, Formulation 55, Manufacturing 55, Sustainability 50, Evidence 40. Scored as of 2026-08-24.
Oral GABA has poor blood-brain barrier penetration; most reported effects are attributed to peripheral or gut-brain axis mechanisms rather than direct CNS action (Boonstra 2015 review). PharmaGABA (fermentation-derived) has slightly better small-trial data at 100-200mg. NusaPure sells 1000mg synthetic GABA — high dose of a form that mostly doesn't reach the brain. Would move to Standard 60 with PharmaGABA sourcing and modest 200mg dosing.
Strongest: Safety at 60/100 (adverse-event profile, interaction risk, and dose ceiling) and Transparency at 60/100 (dose disclosure vs proprietary blends, and honesty of marketing claims). Weakest: Sustainability at 50/100 (sourcing practices, packaging, and corporate practice) and Evidence at 40/100 (quality of published RCT support for the active ingredients at the label dose). All six dimensions feed the overall Vyvata score; a weakness on any one dimension pulls the overall down proportionally.
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.
Would move to Standard 60 with PharmaGABA sourcing and modest 200mg dosing.
The top-ranked stress, mood & mental wellness product in the Vyvata catalog is currently Momentous Sleep at 77/100. See the full ranked list of 247 scored products in this subcategory at https://vyvata.com/pages/best-stress-mood-and-mental-wellness-supplements-ranked.
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.
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=NusaPure%20NusaPure%20GABA%20-%20Suitable%20for%20Vegetarian%2FVegan%2C%20Non-%20GMO%20-%201000%20mg%20-%20240%20Tablets),Google(https://www.google.com/search?q=NusaPure%20NusaPure%20GABA%20-%20Suitable%20for%20Vegetarian%2FVegan%2C%20Non-%20GMO%20-%201000%20mg%20-%20240%20Tablets+reviews),Reddit(https://www.reddit.com/search/?q=NusaPure%20NusaPure%20GABA%20-%20Suitable%20for%20Vegetarian%2FVegan%2C%20Non-%20GMO%20-%201000%20mg%20-%20240%20Tablets%20review),andTrustpilot(https://www.trustpilot.com/search?query=NusaPure%20NusaPure%20GABA%20-%20Suitable%20for%20Vegetarian%2FVegan%2C%20Non-%20GMO%20-%201000%20mg%20-%20240%20Tablets).Vyvatadoesnotaggregate,republish,orlicensethosethird-partyreviews.
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.
Every VSF-related metafield surfaced verbatim. Nothing hidden. If you spot data that looks wrong, let us know.
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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