Optimum Nutrition Gold Standard 100% Whey Protein supplement bottle
Optimum Nutrition

Gold Standard 100% Whey Protein

What We Researched
· 5 inactive ingredients decoded · 9 brand certifications checked · Last updated: Mar 2026
75
Product Score Fair
92
Brand Score Excellent

Product Analysis

Transparency Fair

Supplement Facts

No supplement facts data available.

Bioavailability N/A

Absorption Rating

No ingredient forms matched our reference database.

Other Ingredients Excellent

Fillers & Additives

  • Emulsifier: Soy Lecithin
  • Flavours
  • Sodium Chloride
  • Thickeners (466, 415, 407)
  • Sweetener (955)
Efficacy N/A

Dosage Analysis

Dosage data not available for assessment.

Other Ingredients

Inactive ingredients used in manufacturing. All rated for safety.

Emulsifier: Soy Lecithin Unknown
Flavours Unknown
Sodium Chloride Safe

Provides sodium, stabilizes formulations.

Thickeners (466, 415, 407) Unknown
Sweetener (955) Unknown
Brand Trust Report
Optimum Nutrition

Founded 1986 · Downers Grove, IL, United States · 95 products · optimumnutrition.com

Certifications

9 certifications
Consumerlab Verified Source
Informed Sport Verified Source
Labdoor Verified Source
Nsf Certified For Sport Verified Source
Usda Organic Verified Source
Vegan Certified Verified Source
Fda Gmp Inspections Verified Source
Non Gmo Project Verified Source
Nsf Gmp Verified Source

Transparency

4 claims
Third Party Testing Claim — Verified Source
Testing Lab Disclosure — Claimed Source
In House Testing — Verified Source

Violation History

5 incidents
Prop 65 Lead2025-07-21Source
Prop 65 Lead2024-11-22Source
Recall Various nutritional and beverage products2022-07-28Source
Prop 65 Lead2017-03-10Source
Lawsuit Deceptive claims about the plant-based enzyme 'Aminogen' and its effect on protein digestion and absorption.2013Source
Related Supplements
NOW Foods Sports, L-Arginine Powder, 2.2 lbs (1 kg)
NOW Foods Sports, L-Arginine Powder, 2.2 lbs (1 kg)
Product 100 Brand 100
NOW Foods Acetyl-L-Carnitine, 3 oz (85 g)
NOW Foods Acetyl-L-Carnitine, 3 oz (85 g)
Product 100 Brand 100
NOW Foods Acetyl-L-Carnitine, 500 mg, 200 Veg Capsules
NOW Foods Acetyl-L-Carnitine, 500 mg, 200 Veg Capsules
Product 100 Brand 100
Optimum Nutrition Glutamine Powder, Unflavored, 10.58 oz (300 g)
Optimum Nutrition Glutamine Powder, Unflavored, 10.58 oz (300 g)
Product 100 Brand 92
Optimum Nutrition Glutamine Powder, Unflavored, 2.2 lbs (1 kg)
Optimum Nutrition Glutamine Powder, Unflavored, 2.2 lbs (1 kg)
Product 100 Brand 92
Optimum Nutrition Micronized Creatine Powder, Unflavored, 10.58 oz (300 g)
Optimum Nutrition Micronized Creatine Powder, Unflavored, 10.58 oz (300 g)
Product 100 Brand 92
Frequently Asked Questions
Is Optimum Nutrition Gold Standard 100% Whey Protein a good supplement?

Optimum Nutrition Gold Standard 100% Whey Protein received a product quality score of 75/100 in GoodSupp's independent analysis, suggesting some areas that could be improved. Of the 5 inactive ingredients, 1 are rated safe and 0 are flagged for review. The manufacturer, Optimum Nutrition, holds a brand trust score of 92/100 with 9 verified certifications including Consumerlab, Informed Sport, Labdoor, Nsf Certified For Sport.

Is Optimum Nutrition Gold Standard 100% Whey Protein safe to take?

Optimum Nutrition Gold Standard 100% Whey Protein has been analyzed for ingredient safety across all its components. Always consult your healthcare provider before starting any new supplement, especially if you take medications or have underlying health conditions.

Is Optimum Nutrition a trustworthy supplement brand?

Optimum Nutrition receives a brand trust score of 92/100 based on GoodSupp's independent analysis of certifications, regulatory history, and transparency practices. Founded in 1986 and headquartered in Downers Grove, IL, United States, the company offers 95 products in their lineup. They hold 9 verified certifications including Consumerlab, Informed Sport, Labdoor, Nsf Certified For Sport. Third-party certifications are independently verified and indicate the brand meets specific quality, purity, and manufacturing standards. Note: Optimum Nutrition has 5 historical regulatory incidents on record, which are factored into the trust score.

Scan Any Supplement Instantly

Download GoodSupp to scan barcodes, check ingredient safety, and find the best supplements for your needs.

Download on App Store Browse All Supplements
Disclaimer: GoodSupp provides independent supplement quality analysis for informational purposes only. Scores are generated algorithmically based on ingredient profiles, brand certifications, and public records. This is not medical advice. Always consult a healthcare professional before starting any supplement regimen. Product data is sourced from manufacturer labels and public databases. GoodSupp is not affiliated with any supplement brand.