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1.8kg · 10 flavours
Same flavour, same size, ranked cheapest first across every store we track.
Optimum Nutrition Gold Standard 100% Casein is a protein product from the American giant behind Gold Standard Whey. Each serve delivers around 24 grams of slow-release casein protein per serve, making it a solid pick for everyday training and recovery. Typically priced between $80 and $140 across Aussie retailers.
Compare live prices across stores below.
American protein heavyweight since 1986. Gold Standard Whey is one of the world's best-selling protein powders.
Browse all Optimum Nutrition products →We check every Australian protein store we track every two hours and rank the same flavour and same size side-by-side. Prices change during the day. Always confirm at the store before buying. Brand site: www.optimumnutrition.com.
