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Optimum Nutrition
Gold Standard 100% Whey (Double Rich Chocolate)
2 lb tub · 29 servings · UPC 748927028614
73OF 100
✓Good · 60–79
The best-selling US whey is Informed Choice certified, but its label leans on an undosed three-part protein blend, acesulfame potassium, natural and artificial flavors, and soy lecithin.
Why this score
Informed Choice certified
✓Verified
ON Gold Standard 100% Whey is listed in the Informed Choice certified-product directory, certified since July 2014, with a Double Rich Chocolate batch tested in June 2026. The Informed Choice seal also appears on the label itself per the NIH label archive.
Source: Informed Choice directory — Gold Standard 100% WheyView source ↗