Brand-quality audit Published Apr 8, 2026 Recalibrated Jun 14, 2026

NutraBio

Premium sports-nutrition transparency brand: strong COAs and dosing, but not the cheapest or formally NSF Certified for Sport.

Composite trust

90 /100 Excellent

Quality

97 /100

Excellent

Formulation

89 /100

Strong

Transparency

100 /100

Excellent

Safety

89 /100

Strong

Value

68 /100

Mixed

Sentiment

100 /100

Excellent

Top strengths

Lot-specific COA access and third-party testing disclosure
Full-label, no-proprietary-blend formulations with strong sampled dosing
Strong consumer sentiment on Trustpilot, BBB, and supplement communities
In-house U.S. manufacturing and posted third-party GMP audit evidence

Key concerns

Premium pricing versus mainstream and some premium comparables
No verified NSF Certified for Sport, USP Verified, or Informed Sport certification found
Posted Eurofins GMP certificate appears expired as of the 2026 scoring date
Historical Prop 65 warning matter and disputed 2024 ostarine controversy require context

Badges

Public COAs Third-party tested Effective dosing Premium ingredients Transparent pricing Community favorite

Axis by axis

What the evidence shows

Quality

97/100 Excellent

Quality evidence is unusually strong for a sports-nutrition brand because NutraBio combines lot-specific COA access, disclosed in-house manufacturing, a posted third-party GMP audit certificate, and contaminant-testing claims. The main limits are that COA access appears lot-number-gated, the strongest certification evidence is Eurofins GMP rather than NSF/USP product certification, and historical Prop 65 warning allegations should be checked by lot-sensitive buyers. Overall, the quality case is strong but not identical to formal NSF Certified for Sport/USP Verified assurance. ¹²³¹³¹⁵²⁷

Formulation

89/100 Strong

Formulation is a major NutraBio strength: sampled performance products disclose full active doses, avoid proprietary blends, and use premium forms. I found strong ingredient-level rationale but did not verify brand-owned clinical trials on final products, so the score is driven by dosing transparency and formulation quality rather than clinical outcomes on NutraBio products themselves. ⁴⁷⁸⁹¹¹¹²

Transparency

100/100 Excellent

NutraBio’s transparency is materially above the supplement-brand norm because it combines lot-level COA lookup, full label disclosure, visible ownership/leadership, and posted facility documents. The biggest transparency caveat is that the visible Eurofins GMP certificate appears expired as of the 2026 scoring date, and I did not verify formal NSF/USP/Informed Sport certification. ¹²⁴⁵¹³

Safety

89/100 Strong

NutraBio has a mostly clean public regulatory profile in the sources reviewed, with no FDA recall or warning letter found, plus meaningful proactive batch testing. The safety score is held back by an old multi-product California Prop 65 lead/cadmium warning matter and a serious but disputed 2024 ostarine allegation involving SuperCarb. Drug-tested athletes should use extra caution because formal NSF Certified for Sport verification was not found. ¹¹³¹⁵²⁷²⁸²⁹³⁰

Value

68/100 Mixed

NutraBio is a premium-priced brand, not a bargain brand. The premium is partly justified by COAs, third-party testing claims, in-house manufacturing, and full-label dosing, but sampled protein and PRE pricing still sit above several comparable options. Best value comes from buyers who care enough about COAs and full dosing to use those features. ¹²⁷¹⁰¹⁸¹⁹²⁰

Sentiment

100/100 Excellent

Real-world sentiment is one of NutraBio’s strongest areas. Trustpilot is very positive, BBB is A+, and supplement-community discussions commonly praise the brand’s transparent labels and testing posture. I found isolated product complaints and disputed controversy, but not a broad community warning pattern. ⁵²¹²²²³²⁸²⁹

The rubric

How every score was built

Each axis opens at a category baseline, then moves only on dated, cited evidence, never a gut call. That is the whole difference from a star rating: every one of these 32 adjustments is a receipt you can check.

Points	What moved the score
Quality baseline 50 97 Excellent
+18	Public, lot-specific COA portal NutraBio’s CheckMySupps portal states that shoppers can enter the lot number from the bottle to view actual third-party lab verification, and says every supplement is made in-house, tested internally, and verified again by independent third-party labs. This fits the rubric’s public COA portal factor, but I used +18 rather than +20 because access appears lot-number based rather than a browsable all-lots library. ¹¹⁶ Current page crawled/reviewed in 2026; full weight. · full weight
+10	Third-party GMP facility audit recognition NutraBio posts a Eurofins Food Assurance GMP dietary-supplement audit certificate for NutraBio Labs, Inc. at 564 Lincoln Blvd., Middlesex, NJ, covering 21 CFR Part 111 requirements, audited July 11-12, 2024 with a 100% audit score. This is strong facility-quality evidence, but it is not NSF/USP certification, so I used the lower-middle end of the facility-certification range. ² Audit dated July 2024; full weight as the audit is within 2 years, but see transparency concern about the posted expiry date. · full weight
+10	Third-party independent testing disclosed across products NutraBio’s portal and product pages consistently claim third-party lab testing and label-accuracy verification; the WPI and Alpha EAA product pages also display the brand’s 'Third Party Tested' quality guarantee. Awarded +10 in the rubric’s +8 to +12 range because disclosure is unusually systematic, though the lab reports are lot-number-gated. ¹⁷⁹ Current product/portal pages reviewed in 2026; full weight. · full weight
+5	Heavy-metal, toxin, and contaminant testing disclosed NutraBio’s founder/quality article says each ingredient batch goes through testing including heavy metals, toxins, and other contaminants, and CheckMySupps describes purity testing for unwanted contaminants. Awarded +5 within the +3 to +6 range because the testing categories are disclosed, but a shopper still needs a lot number to inspect actual results. ¹³ Current/recent official disclosure; full weight. · full weight
+4	In-house manufacturing and laboratory/QC control CheckMySupps says products are manufactured in NutraBio’s own cGMP facility and tested in its in-house laboratory before third-party verification; NutraBio’s About page also identifies dedicated manufacturing, R&D, purchasing, and quality-control staff. Awarded +4 because the in-house lab/QC infrastructure is disclosed but not shown as ISO 17025 accredited. ¹⁴ Current official pages reviewed in 2026; full weight. · full weight
—	Not scored Could not perform a full product-line COA audit without live lot numbers; could not confirm a current NSF/USP/Informed Sport listing for NutraBio products; and did not obtain full FDA inspection documents beyond public search results and secondary compliance snippets.
Formulation baseline 50 89 Strong
+13	Effective dosing in sampled core products Sampled products show a strong effective-dose pattern: PRE lists 10 g L-citrulline, 3.2 g beta-alanine, and 350 mg caffeine; Natural/WPI products list 25 g protein per serving; Alpha EAA lists 8.2 g EAAs and 6 g BCAAs; Creatine HMB lists 5 g creatine monohydrate plus 3 g HMB. Of 6 sampled performance products, 6/6 had clearly disclosed, clinically plausible primary actives, so I awarded +13 of the +10 to +15 majority-line range rather than claiming a comprehensive 400-product audit. ⁷⁸⁹¹⁰¹²³⁴ Current 2026 product labels/pages; full weight. · full weight
+7	No proprietary blends / full active-ingredient disclosure NutraBio’s About page promises full label disclosure and 'NEVER USING PROPRIETARY BLENDS,' and sampled product pages state that exact quantities of active ingredients are declared. Because this appears systematic across sampled products, I awarded the full +7. ⁴⁷⁹¹¹ Current official pages reviewed in 2026; full weight. · full weight
+7	Branded and premium ingredients in sampled formulas Sampled formulas use premium/branded inputs including KSM-66 ashwagandha, AstraGin, Albion/TRAACS chelated minerals, MenaQ7 MK-7, VitaCholine, and PharmaPure creatine in Creatine HMB. Awarded +7 of +5 to +8 because premium inputs appear across several sampled categories, but not every SKU was audited. ⁹¹¹¹² Current product pages; full weight. · full weight
+8	Bioavailability-oriented forms and absorption technology NutraBio’s MultiSport page emphasizes Albion chelated minerals, active B-vitamin coenzymes, MenaQ7, VitaCholine, and BioPerine; Alpha EAA includes AstraGin for amino-acid uptake; WPI pages describe cross-flow microfiltered whey isolate. Awarded +8 rather than +12 because these are strong but conventional premium-form choices, not unique brand-owned clinical technology. ⁷⁹¹¹ Current product pages; full weight. · full weight
+4	Minimal-fillers / clean-label pattern in sampled products NutraBio’s brand promise says no unnecessary fillers, excipients, or additives, and the WPI product page claims no fillers/excipients. Awarded +4 because the pattern is visible in sampled products, while flavored powders still necessarily include flavoring/sweetener systems. ⁴⁷³⁴ Current official pages; full weight. · full weight
—	Not scored No comprehensive SKU-by-SKU line audit; no verified database of finished-product clinical trials; no independent laboratory verification for every sampled formula beyond selected product/lot testing evidence.
Transparency baseline 50 100 Excellent
+24	Public COA portal / batch lookup system CheckMySupps gives consumers direct access to published test results by entering a lot number and describes actual third-party lab verification for the product. This earns near-full +24 of +20 to +25 because the system is unusually transparent for supplements, but not full +25 because it appears to require a purchased bottle/lot number. ¹¹⁶ Current page reviewed in 2026; full weight. · full weight
+10	Ownership, executives, and business identity disclosed NutraBio’s About page names Mark Glazier as chairman/founder and lists senior team functions; BBB identifies NutraBio Labs, Inc. as a corporation, started/incorporated in 1996, with Mark Glazier as CEO/founder. Awarded +10 of +8 to +12 for clear basic ownership/management disclosure. ⁴⁵ Current BBB/official pages; full weight. · full weight
+9	Manufacturing location and facility credentials disclosed NutraBio discloses Middlesex, New Jersey manufacturing and posts facility certification resources; the Eurofins certificate identifies the facility address and audit scope. Awarded +9 of +6 to +10 because location and audit evidence are accessible, with the caveat that the posted certificate expiry is a separate concern. ²⁴⁶ Current disclosures; full weight. · full weight
+9	Third-party testing disclosed and explained The CheckMySupps page explains third-party lab testing, label-accuracy verification, purity/potency checks, and contaminant screening. Awarded +9 of +8 to +12 because the explanation is unusually detailed, though formal NSF/USP/Informed certification was not verified. ¹¹³²⁷ Current portal/research; full weight. · full weight
+5	Clear labeling / no proprietary blend policy NutraBio states every product lists all ingredients with exact dosages and never uses proprietary blends; sampled product pages repeat full label disclosure guarantees. Awarded the full +5 for clear-label practice. ⁴⁷⁹¹¹ Current official pages; full weight. · full weight
+5	Ingredient qualification and sourcing philosophy disclosed, but not full country-level sourcing NutraBio discusses supplier qualification and raw-ingredient testing and quotes Mark Glazier saying source geography matters less than meeting purity, potency, composition, and identity specifications. Awarded +5 rather than +10 to +15 because this is a quality-control/sourcing philosophy, not a product-by-product country-of-origin supply-chain map. ³ Current/recent official content; full weight. · full weight
−5	Posted GMP certificate appears expired as of scoring date NutraBio continues to claim GMP/cGMP manufacturing in 2026, but the posted Eurofins GMP certificate reviewed in the certification link lists an expiry date of July 12, 2025. Because a renewal may exist but was not located in the posted certificate set, I apply a low-end claims-verification penalty of -5 rather than treating the GMP claim as false. ²⁶ Certificate expiry is current as of 2026-06-14; full weight for the transparency gap. · full weight
—	Not scored No pre-purchase access to arbitrary lot COAs without lot numbers; no current renewal certificate located beyond the posted 2024-2025 Eurofins certificate; no comprehensive country-of-origin ingredient map.
Safety baseline 90 89 Strong
+5	Clean FDA warning-letter/recall signal in searched public sources No NutraBio FDA warning letter or recall was found in the searches conducted; SupplementChecker reports 0 FDA warning letters and 0 recalls for NutraBio. Because absence of evidence is not proof of a perfect record, I awarded +5 rather than a larger safety bonus. ¹³¹⁴⁴⁰ Current public searches and 2026 secondary profile; full weight. · full weight
+4	Proactive safety testing and COA access NutraBio discloses batch testing, contaminant testing, and third-party verification through CheckMySupps and its quality materials. Awarded +4 of +3 to +6 for proactive safety measures. ¹³ Current/recent official materials; full weight. · full weight
−8	Historical California Prop 65 lead/cadmium warning matter California Attorney General Prop 65 records for 2018 list multiple NutraBio products in lead/cadmium warning allegations, including plant protein, casein, meal replacement, mass gainer, classic whey, and flaxseed products. I use a base -16 warning/mislabeling-style penalty for multiple products, then apply the 5-10 year temporal discount: -16 × 50% = -8. This is not described as an FDA recall or confirmed consumer injury in the reviewed text. ¹⁵ 2018 matter, 5-10 years old; 50% temporal weight. · 50% weight
−5	Disputed 2024 ostarine/banned-substance allegation involving SuperCarb Ryan Garcia’s team/public reports alleged that an opened NutraBio SuperCarb sample tested positive for ostarine at trace pg/g levels, while NutraBio publicly rejected the claim and reported testing of sealed bottles/same lot with no ostarine detected. Because the allegation is serious but disputed, not shown as a regulatory finding against NutraBio, and not a confirmed brand-level contamination in the reviewed evidence, I apply a proportional penalty: -25 banned-substance low-end × 25% certainty × 75% recency weight ≈ -5. ²⁸²⁹³⁰ May-June 2024, just over 2 years from scoring date; 75% temporal weight used. · 75% weight
+3	The 2018 Prop 65 matter is a California warning-label exposure issue, not an FDA recall, not a documented hospitalization, and not direct evidence in the reviewed text that products exceeded federal safety limits. Standard contamination penalties would overstate this without context. ¹⁵ Exceptional · Industry Context
—	Not scored No full FDA FOIA/483 file review; no direct access to all historical court dockets; no independent retesting commissioned for current NutraBio lots; Ryan Garcia-related evidence is conflicting and should not be treated as a proven brand contamination event.
Value baseline 50 68 Mixed
+14	Premium pricing is partly justified by testing/transparency/manufacturing controls NutraBio charges premium sports-nutrition prices, but those prices buy lot-level COA access, third-party lab verification claims, posted GMP audit evidence, in-house manufacturing, and full-label dosing. Awarded +14 of +12 to +18 for premium justified by quality/certs. ¹²⁴⁷ Current 2026 product and quality evidence; full weight. · full weight
+8	Subscription discounts and loyalty value NutraBio product pages advertise Subscribe & Save mechanics, with Alpha EAA showing 10% off on recurring orders and promotional language saying up to 25% off all month long with loyalty points. Awarded +8 of +8 to +12 because savings are meaningful but product/promotion-specific. ⁹ Current product-page pricing; full weight. · full weight
+6	Transparent pricing and return/shipping terms Product pages show one-time purchase pricing, subscription options, free shipping over $99 for continental U.S. orders, and a stated Forever & A Day guarantee/return-exchange policy. Awarded +6 of +6 to +10 for clear terms, not the high end because international/territory exclusions apply. ⁷⁹ Current product-page terms; full weight. · full weight
−6	Protein pricing above several comparable whey options in sampled current prices NutraBio Natural WPI is listed at $49.99 for 20 servings ($2.50/serving), while Optimum Nutrition’s official Gold Standard page showed $1.89/serving and 2026 Transparent Labs/Legion references cluster around about $2.00/serving. This is a 25-32% premium in the sampled comparison, but I reduce the penalty to -6 because NutraBio’s COA/testing and isolate positioning partially justify the gap. ¹⁸¹⁹²⁰³⁴ Current/recent 2026 pricing pages; full weight. · full weight
−4	PRE is premium per serving A 2026 PRE review places NutraBio PRE at roughly $2.25 per serving and calls it premium/on the high side. Because PRE is also fully disclosed and heavily dosed, I apply only a modest value penalty. ⁸¹⁰ 2026 review and current label; full weight. · full weight
—	Not scored Pricing changes frequently; not all size/flavor variants were visible in search snippets; no full cart-level shipping/tax/subscription cancellation test was performed.
Sentiment baseline 60 100 Excellent
+15	Strong Trustpilot rating and review volume Trustpilot shows NutraBio at 4.9/5 with roughly 1,115 reviews and a recent-review summary dominated by product quality, transparency, taste, and customer-service praise. Awarded full +15 for 4.5+ stars with 200+ reviews. ²¹ Current Trustpilot profile crawled in 2026; full weight. · full weight
+10	BBB A+ rating with long business history BBB lists NutraBio Labs, Inc. with an A+ rating, 30 years in business, and a file opened in 2007, while noting it is not BBB accredited. Awarded +10 of +8 to +12 because the rating/history are strong but accreditation is absent. ⁵ Current BBB profile; full weight. · full weight
+12	Authentic community endorsement in supplement/fitness discussions Reddit discussions include unprompted praise for NutraBio’s full label disclosure, long-term users, and customer-service/label transparency comments. This is not a controlled survey, but sentiment is consistently positive enough across sampled threads to award +12 of +12 to +18. ²²²³ Threads range from older to recent; full weight for continuing pattern but not maximum due anecdotal nature. · full weight
+8	Industry/community recognition for flagship protein NutraBio’s WPI page cites consumer-voted Protein Wars recognition and other awards; the brand also reports Bodybuilding.com’s 2017 Breakout Brand of the Year. Awarded +8 because these are useful niche signals, though some are older and partly brand-reported. ⁷²⁴ Mixed; Bodybuilding.com award is older than 5 years, but WPI award claims remain on current page. Weighted to a moderate +8. · 50% weight
+6	Responsive/support-positive service signals Trustpilot’s recent-review summary praises customer service, and BBB’s A+ profile with public contact details supports a positive service signal. Awarded +6 because this is review/profile evidence, not a direct response-time test. ⁵²¹ Current review/profile evidence; full weight. · full weight
—	Not scored No direct scrape/count of all Reddit mentions; no analysis of deleted/moderated reviews; no customer-service mystery-shop test; influencer sponsorship disclosure was not exhaustively audited.

Best for

Transparency-focused supplement buyers who will actually use lot-number COAs before trusting a product. [^1]
Experienced lifters and sports-nutrition users who want fully disclosed, heavily dosed formulas rather than proprietary blends. [^4][^8][^9]
Protein/pre-workout buyers willing to pay premium pricing for stronger testing and label-transparency signals. [^1][^7][^10][^34]

Skip if

You are a drug-tested athlete whose team, league, or federation requires NSF Certified for Sport, Informed Sport, or a similarly formal banned-substance certification; I did not verify NutraBio in those programs. [^13][^27]
You are shopping primarily on price; sampled NutraBio protein and PRE pricing sit above several comparable options. [^10][^18][^19][^20][^34]
You want pre-purchase access to every COA without needing a lot number, or you require complete country-of-origin sourcing by ingredient. [^1][^3]

Questions

What shoppers ask about NutraBio

Is NutraBio a good brand?

Yes, NutraBio looks like a strong brand for shoppers who value full-label formulas, lot-specific COA lookup, and third-party testing disclosure. The caveats are premium pricing, no verified NSF/USP/Informed Sport certification in this research, and a few historical/disputed safety-context items. ¹²⁴¹³¹⁵²⁷

What is the #1 rated protein powder?

There is no single official '#1' protein powder because rankings depend on whether you prioritize cost, taste, ingredient simplicity, testing, or sport certification. NutraBio Whey Protein Isolate is a credible premium contender because it discloses 25 g protein per serving and has reported independent amino-spiking/label-claim testing, but it is not automatically the best value for every buyer. ⁷¹⁷¹⁸¹⁹²⁰

Is NutraBio made in the USA?

NutraBio says it manufactures products in its own facility in Middlesex, New Jersey, and the posted Eurofins GMP certificate identifies that same facility address. Ingredient sourcing may still be global; NutraBio’s own sourcing discussion emphasizes supplier qualification and testing rather than country-only sourcing. ²³⁶

Is NutraBio 3rd party tested?

NutraBio says yes: its CheckMySupps portal describes independent third-party lab verification and lot-number access to test results. However, I did not verify formal NSF Certified for Sport, USP Verified, or Informed Sport certification, so 'third-party tested' should not be read as 'formally sport-certified.' ¹¹³²⁷

What is the #1 most trustworthy vitamin company?

There is no universal official '#1 most trustworthy' vitamin company; trustworthy depends on the product category and whether you prioritize USP/NSF certification, public COAs, practitioner use, or price. NutraBio is strong on transparency and full-label disclosure, but for vitamins specifically I would still compare it against brands with formal USP/NSF product certifications where available. ¹¹¹¹³²⁷

What is the cleanest healthiest protein powder?

The cleanest protein powder for you depends on allergies, sweetener preferences, heavy-metal tolerance, and whether you want whey, plant, or dairy-free protein. NutraBio’s whey isolate is a clean-label premium option with 25 g protein per serving and reported amino-spike-free testing, but plant/chocolate-heavy products should still be checked by current lot COA because historical Prop 65 records included lead/cadmium warning allegations for some older products. ¹⁷¹⁵¹⁷³⁴

Sources

1. CheckMySupps.com - Third Party Lab Test Results (2026)
2. Eurofins GMP for Dietary Supplements Certificate - NutraBio Labs, Inc. (2024)
3. Mark Glazier on GMP Quality & Manufacturing (2026)
4. About NutraBio (2026)
5. NutraBio Labs, Inc. BBB Business Profile (2026)
6. FDA registered and inspected cGMP - NutraBio (2026)
7. NutraBio Whey Protein Isolate Powder (2026)
8. NutraBio All-In-One PRE Workout Powder (2026)
9. NutraBio Alpha EAA Amino Acid Supplement (2026)
10. NutraBio PRE Review (2026) (2026)
11. NutraBio MultiSport for Men (2026)
12. NutraBio Creatine HMB Powder (2026)
13. NutraBio Brand Profile - SupplementChecker (2026)
14. FDA Recalls, Market Withdrawals, & Safety Alerts (2026)
15. California Attorney General Prop 65 Settlement/Notice File 2018-00665S7341 (2018)
16. NutraBio introduces CheckMySupps - Stack3D (2017)
17. NutraBio WPI is STACK3D Certified - NutraBio (2025)
18. Optimum Nutrition Gold Standard 100% Whey (2026)
19. Transparent Labs Grass-Fed Whey Protein Isolate Review 2026 (2026)
20. Legion Whey+ Protein Review - BarBend (2026)
21. NutraBio Trustpilot Reviews (2026)
22. Reddit discussion mentioning NutraBio full disclosure (2023)
23. Reddit discussion: Quality of NutraBio supplements (2024)
24. NutraBio Named Bodybuilding.com 2017 Breakout Brand of the Year (2017)
25. ConsumerLab Reviews and Information for NutraBio (2026)
26. NSF Official GMP Listings (2026)
27. NSF Certified for Sport Program (2026)
28. NutraBio Statement: Testing Confirms No Ostarine Found in Products (2024)
29. NutraBio tests sealed SuperCarb bottle after Ryan Garcia claims - Stack3D (2024)
30. Reports of Ryan Garcia supplements testing positive for ostarine - ge.globo (2024)
31. NutraBio Labs Class Action Says Glutamine Doesn't Help Muscle Growth (2018)
32. ConsumerLab Quality Certification Program Certified Products (2026)
33. NutraBio / EndurElite Champion Ambassador Program (2026)
34. NutraBio Natural Whey Protein Isolate (2026)
35. FDA Inspection Classification Database (2026)
36. Redica NutraBio Labs Site Profile (2026)
37. FDA’s recall of 859 supplement companies and what that means to you - NutraBio (2026)
38. Learn More About NutraBio's Testing and Ingredient Qualification (2023)
39. NSF GMP Certification (2026)
40. FDA Warning Letters Database (2026)

Recalibrated Jun 14, 2026 · 32 scored adjustments · 29 distinct citations across 40 sources