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Optimum Nutrition Supplements: Scored and Compared

Optimum Nutrition is one of the most recognized names in sports nutrition, best known for their Gold Standard Whey Protein and micronized creatine. They hold Informed Choice certification for banned substance testing, use Creapure-sourced creatine, and manufacture in GMP facilities.

Avg Grade
A
2
Products Scored
A
Average Grade
100%
Third-Party Tested
$0.71
Avg Cost/Day

Brand Overview

Optimum Nutrition is one of the most recognized names in sports nutrition, best known for their Gold Standard Whey Protein and micronized creatine. They hold Informed Choice certification for banned substance testing, use Creapure-sourced creatine, and manufacture in GMP facilities. Their product range on this site is limited to performance supplements (protein and creatine), but within that lane they are a top-tier choice. The pricing is competitive for the quality level, particularly on their creatine, which uses Creapure at a fraction of what some NSF-certified alternatives charge.

Informed ChoiceGMP Certified

Brand Quality Assessment

Strengths

  • +Informed Choice certified for banned substance testing
  • +Creapure-sourced creatine at competitive pricing
  • +Industry-leading sports nutrition brand with decades of trust
  • +Gold Standard Whey is the most-sold protein powder globally

Weaknesses

  • -Limited product range outside sports nutrition
  • -Not a practitioner-grade brand for general health supplements
  • -Some products contain artificial sweeteners and flavors

Best for

Athletes and gym-goers looking for trusted sports nutrition products. Their creatine monohydrate is one of the best value Creapure products on the market.

Score Breakdown (Averages)

Evidence
A
Quality
B+
Overall
A
Transparency
A

All Optimum Nutrition Products We Have Scored (2)

Best Overall
01

Micronized Creatine Monohydrate Powder

Optimum Nutrition
A
$0.33/day5000mg/serving$39.99 (120 servings)
✓ Third-party testedInformed Choice

One of the best-selling creatine supplements globally, Creapure sourced with third-party testing

Prices checked 2025-03-01. Cost shown is per clinically effective daily dose, not per pill.

Best Overall
02

Gold Standard 100% Whey

Optimum Nutrition
A
$1.08/day24g/serving$79.99 (74 servings)
✓ Third-party testedInformed Choice

The world's best-selling whey protein for good reason - consistent quality, Informed Choice certified, and a fair price at full-size containers. Note that it is technically an isolate-led blend, not a pure isolate.

Prices checked 2025-03-01. Cost shown is per clinically effective daily dose, not per pill.

Product Comparison

ProductSupplement TypeGradeCost/DayThird-Party
Micronized Creatine Monohydrate Powder
Creatine Monohydrate
A
$0.33Yes
Gold Standard 100% Whey
Whey Protein Isolate
A
$1.08Yes

FDA Disclaimer: These statements have not been evaluated by the Food and Drug Administration. The products discussed on this page are not intended to diagnose, treat, cure, or prevent any disease. Always consult with a qualified healthcare professional before starting any supplement regimen.