NutraBio: The Transparency Standard—with Prices That Mostly Add Up
Our Verdict
Investigation reveals a brand that walks the talk on transparency—batch COAs, full label disclosure and independent verifications set NutraBio apart. Value is strong on its flagship protein and fair-to-premium on simple commodities. Regulatory exposure appears minimal; the notable watch-items are an older glutamine lawsuit and a 2025 TCPA text-marketing case. Innovation comes from rapid adoption of credible new ingredients rather than NutraBio-run clinicals. Bottom line: If you care about seeing the lab work behind your supplements, NutraBio earns your trust—and your protein dollars.
How we investigated:We audited NutraBio's supplement line through public records and industry sources: batch COAs, third-party verifications, certifications and facility details, lawsuits and regulatory databases, pricing vs competitors, and customer-reported patterns across forums and review sites. Where claims were marketing-led, we traced them to primary evidence when possible.
Ideal For
- Athletes and lifters who want to verify what's in the tub via batch COAs
- Shoppers who refuse proprietary blends and want exact dosages
- Consumers seeking OU-kosher options in dairy proteins
Avoid If
- You want the absolute lowest price on commodity powders like creatine
- You avoid artificial sweeteners entirely (choose unflavored instead)
Best Products
- 100% Whey Protein Isolate
- Tongkat Ali (LJ100)
- Growth Peptides (for early adopters)
Skip These
- Glutamine if purchasing primarily for 'muscle building'—evidence and litigation history caution marketing claims. [8].
What to Watch For
Track rollout/coverage on CheckMySupps as the portal catches up on posting COAs and watch how Growth Peptides performs as more independent data on PeptiStrong and DL-185 accumulates. Also monitor the outcome of the TCPA case for marketing-compliance signals.
Frequently Asked Questions
Does NutraBio publish batch test results (COAs) for my exact bottle?
Yes. Enter your lot number at CheckMySupps.com to view third-party testing for many products; if you don't see your lot, contact support and/or check back as the portal updates. [1].
Is NutraBio NSF Certified for Sport?
We didn't find NSF Certified for Sport listings for NutraBio's finished products. NutraBio emphasizes cGMP operations, OU-Kosher on select items, and public COAs instead. If you need NSF, consider Thorne or other NSF-Sport brands. [20][30].
Are NutraBio proteins amino-spiked?
Independent testing under Stack3d Certified reported NutraBio WPI is not amino-spiked and meets label claims. [5].
Alternatives to Consider
Transparent Labs
Public COAs per product page; clean-label positioning.
Price:Often higher price per serving on protein.
Choose when:If you want batch COAs embedded on each PDP and strictly natural-sweetened options. [13][17].
Nootropics Depot
Extensive in-house and third-party testing; lab capabilities; COAs on request.
Price:Varies by category; strong on niche actives.
Choose when:If lab testing depth and detailed COAs across many actives matter most. [27][28][29].
What Customers Say
Transparency and taste frequently praised; pricing viewed as premium but fair for proteins.
Trustpilot average 4.9/5 across ~1,000+ reviews; multiple Reddit endorsements. [14][15].
"Absolute leader... easiest third-party verification I've ever seen." [Reddit]
"They have full transparency... no proprietary blends." [Trustpilot]
High satisfaction for those who value testing and straightforward labels.
Sweetener preferences split users.
Recurring forum comments about sucralose/acesulfame; unflavored options mitigate. [15].
"Reputable... but I have reservations about acesulfame potassium, sucralose." [Reddit]
Flavor choice (or unflavored) matters if you avoid certain sweeteners.
Value Analysis
Pricing Strategy
Protein is competitively priced for true isolate; commodities like creatine run premium vs bulk.
Ingredient Cost Reality
High testing cadence and in-house manufacturing raise COGS but add consumer-visible value (COAs).
Markup Analysis
WPI 5 lb $109.99 (~$1.45/serving) vs Transparent Labs WPI 2 lb $59.99 (~$2.00/serving). Creatine: NutraBio ~$.36/5g vs BulkSupplements ~$.14/5g. [16][17][18][19].
Excellent value for protein transparency; average-to-low value on plain commodities (creatine).
Most Surprising Finding
NutraBio publicly launched a portal to let anyone pull lab results for specific lots—something many 'tested' brands still won't do. [1].
Key Findings
Batch-level transparency: NutraBio publishes third-party Certificates of Analysis (COAs) by lot number at CheckMySupps—uncommon in the category. Coverage began with proteins in 2017, with broader expansion; the site currently notes occasional update delays. [1][2].
Label disclosure standard: The brand avoids proprietary blends and even piloted "True Facts" panels to show unrounded values online—meaning you see more than legally required. [3][4].
Independent verification exists: NutraBio Whey Protein Isolate has been Stack3d Certified (amino-spike free/label match) and received TigerFitness "Tiger Tested & Approved." [5][6].
Best Products We Found
100% Whey Protein Isolate (WPI)
Protein • About $109.99 for 5 lb; ~$1.45/serving at listed retailers. [16].
Strength:Transparent labeling; Stack3d-verified label match; OU Kosher; batch COAs available. [1][5][20].
Weakness:Uses non-nutritive sweeteners in many flavors; a minority of users prefer unflavored. Some flavor/texture complaints exist across forums, as with any protein. [15].
Best-in-class transparency and third-party verification at a competitive price for true isolate buyers.
Creatine Monohydrate (powder)
Ergogenics • ~$35.99 for 500 g at major retailers—significantly more per kg than budget bulk creatine (~$28–$35/kg). [18][19].
Strength:Simple, single-ingredient with purity claims and batch testing; mixes well per user reports. [1].
Weakness:Value: price per 5 g serving is higher than BulkSupplements or similar. [19].
Quality is likely excellent; bargain hunters can save 40–60% elsewhere without sacrificing performance.
Tongkat Ali (LJ100) 200 mg
Hormonal wellness/performance • ~$44.99 for 60 servings. [26].
Strength:Uses branded LJ100 extract with human data; clean, single-ingredient label. [24][25].
Weakness:Effects vary; benefits depend on baseline status; not a substitute for medical care.
Thoughtful ingredient choice for a botanical where quality and standardization matter.
Growth Peptides (PeptiStrong + DL-185)
Muscle builder/recovery • $79.99 for 28 servings. [10][11].
Strength:Pairs two of the most researched next-gen peptide ingredients at or near studied doses; non-hormonal. [11][12][15].
Weakness:Evidence is ingredient-level (supplier/third-party trials) rather than NutraBio-run clinicals on the finished product.
Promising, but still 'emerging'—good for early adopters comfortable with cutting-edge ingredients.
Products to Approach Cautiously
L-Glutamine (general marketing claims)
Amino acid • Varies
Issue:Past lawsuit alleged overstated recovery/muscle claims (industry-wide debate). Outcome not shown in our search.
If buying, do so for specific use-cases (e.g., gut support) rather than broad muscle-building promises.
Red Flags
Transparency portal update lag
CheckMySupps notes updates may not reflect the most recent lab tests due to staffing constraints.
Frequency:Ongoing site notice
Company Response:Site banner disclosure; COAs also available upon request via customer care. [1].
Expert Perspectives
Stack3d's program validated WPI label accuracy and no amino spiking. [5].
Transparency Issues
2018 glutamine class action filed; 2025 TCPA texting suit filed; no FDA warning letters located in our search.
Company Background
Ownership:Privately held; founded and led by Mark Glazier since 1996. [21].
Founded:1996; brand history emphasizes in-house manufacturing after early contract-manufacturing issues. [23].
Headquarters:564 Lincoln Boulevard, Middlesex, New Jersey, USA. [22].
Market Position:Sports-nutrition centric with a strong transparency message (full label disclosure; no proprietary blends) and consumer-visible batch testing (CheckMySupps). [1][4].
Regulatory Record:Company states it is FDA-registered and inspected and operates to 21 CFR Part 111 cGMP; also notes OU Kosher for select items. Independent FDA warning-letter searches did not surface letters naming NutraBio during this review. [9][20].
Certifications & Memberships
- Company-stated: OU Kosher on specific products (e.g., Whey Protein Isolate). [20].
Investigation Methodology
Review of FDA databases and trade press, lawsuits/dockets, company manufacturing and testing disclosures, third-party testing programs, retailer pricing, and user-reported experiences across forums and review platforms.
Sources & References
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