• Each serving of the world’s best-selling whey protein powder Gold Standard 100% Whey by Optimum Nutrition contains 24 grams of high-quality whey protein derived mostly from Whey Protein Isolate, which has been ‘separated’ of extra carbs, fat, and lactose using sophisticated filtration processes. Additionally, the powder is instantized to facilitate mixing with simply a glass and spoon. With over 20 distinct flavours – including several that are naturally flavoured – there is no doubt that this is the GOLD STANDARD.

Faster digesting protein is desirable immediately before and after exercise to help refuel recovering muscles, but slow digestion and absorption may be more beneficial at other times – including bedtime when your body typically goes for hours without food. Casein proteins are acid sensitive and thicken in the stomach. Compared to some other proteins, it can take longer for our Gold Standard 100% Casein™ to be broken down into its amino acid subcomponents. By using only premium micellar casein as a protein source, we’ve created a formula that sets the standard for slow digesting protein support.