What are the ingredients in Costco Gold Standard Whey protein?
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3 min read
According to labels from Costco, Optimum Nutrition's Gold Standard Whey protein contains a blend of whey protein isolate, whey protein concentrate, and hydrolyzed whey protein, alongside flavorings and sweeteners. This article provides a detailed breakdown of the components that make up this popular fitness supplement, helping you understand what you're putting into your body.
