Certs Decoded

Certifications Decoded - NSF vs Informed Sport vs USDA

What each certification logo actually means, what it tests for, and which one matters for which audience.

NSF Certified for Sport

NSF International (Ann Arbor, MI) - founded 1944

  • Tests every lot for 280+ banned substances (WADA + NCAA list).
  • Audits manufacturing facility for GMP compliance.
  • Verifies label claim vs HPLC test (active ingredient match).
  • Heavy metals scan: lead, arsenic, cadmium, mercury below FDA limits.
  • Used by all major US pro leagues (MLB, NFL, NHL, NBA, PGA).

Verdict: Highest tier in the US. If you compete or get drug-tested, look for this logo first.

Informed Sport

LGC Group (UK) - founded 1842 as UK govt lab

  • Tests every batch for 250+ banned substances (WADA list).
  • Most frequent batch testing in the industry (monthly cycle).
  • Used by UK Sport, Premier League, Olympic teams worldwide.
  • Less facility audit than NSF, but higher batch frequency.
  • Two tiers : Informed Sport (every batch) and Informed Choice (sample).

Verdict: Equivalent rigor to NSF for banned substances. Better for international athletes.

Third-Party HPLC

Eurofins, NSF Labs, Labdoor, ConsumerLab

  • HPLC (High Performance Liquid Chromatography) measures actual protein g/100 g.
  • Independent lab not financially tied to the brand.
  • Published test results on brand site or in third-party report.
  • Catches the "nitrogen-spike" fraud (cheap amino acids inflating apparent protein).

Verdict: Necessary but not sufficient. Look for HPLC + banned-substance cert combined.

USDA Organic

USDA National Organic Program - founded 1990

  • Certifies ingredient sourcing : no synthetic pesticides, no GMO.
  • Does NOT test for banned substances or heavy metals.
  • Useful for plant proteins, greens, herbs.
  • Less relevant for whey isolate or creatine monohydrate.

Verdict: Sourcing-only signal. Combine with NSF or Informed Sport for athlete-grade.

Honest comparison - even brands we do not recommend

8-Brand Lab Transparency Matrix

Every brand evaluated on the same 6 axes. Click a header to sort. Brands refusing to publish HPLC or heavy metals scan are kept in the matrix on purpose - so you can see the gap.

Brand $/g protein Certification Third-Party HPLC Heavy Metals Cookie Affiliate
Bulk $0.062 Informed Sport Yes - HPLC Yes - scan 30 d 8% + 5% recur
MyProtein US $0.041 Informed Sport Yes Yes 30 d 8%
Vital Proteins $0.196 NSF Sport Yes - HPLC Yes - clean 14 d 10-15%
AG1 $0.658 NSF Sport Yes Yes 30 d 20 USD/sale
Nutricost $0.029 None published No publish Not published 7 d 5%
Optimum Nutrition $0.116 Informed Sport Yes Yes 30 d 8-12%
Transparent Labs $0.087 Informed Sport Yes - HPLC Yes - on label 30 d 12%
Naked Nutrition $0.078 Informed Sport Yes Yes - on label 30 d 10%

"None published" or "No publish" entries are red-tagged. We list them so you can verify our methodology - if a brand refuses to publish HPLC, that is the deal-breaker.