Optimum Nutrition
Is Optimum Nutrition third-party tested?
Yes — as of 2026-08-17, Optimum Nutrition holds 10 third-party certifications across 2 independent testing programs: Informed Sport / Informed Choice, Labdoor. Every certification below links to the certifying body's official listing so you can verify it at the source.
Registries checked (as of 2026-08-17): Informed · NSF · USP · Labdoor · BSCG
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Carb Energy Gel
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Essential Amino Energy - Elite Series
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GOLD STANDARD 100% WHEY ELITE SERIES
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GOLD STANDARD PRE WORKOUT - ELITE
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Gold Standard 100% Whey
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Gold Standard BCAA Train + Sustain - Elite Series
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Gold Standard Plant - Elite Series
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Micronised Creatine Powder - Elite Series
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SERIES
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Serious Mass - Elite Series
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