24 g Protein. 24 Hour delivery. 60 Servings. 100% Whey & 100% Casein, Shaker Cup Included. Fast 100% Whey: Vanilla ice cream, artificially flavored [2.07 lb (941g)]. Slow 100% Casein: Creamy vanilla, naturally and artificially flavored [2 lb (909 g)]. The bigger picture of 24-hour protein support. Intense physical training demands comprehensive protein support - day and night. Fast: Built on a foundation of the purest ion-exchange and microfiltered whey protein isolates and Hydrowhey whey protein hydrolysates, 100% Whey Gold Standard is the fast-acting answer to pre- and post-workout protein delivery. Each serving is packed with 24 grams of all-whey protein providing BCAAs, glutamine, and other amino acids to aid with muscle recovery. Slow: Before bed and between meals, you want a protein that digests slowly and steadily. And that's where our Gold Standard 100% Casein comes in. This micellar casein blend mixes right up into a thick, rich, satisfying shake. And the 24 grams of slow-digesting proteins provide anti-catabolic protection as your muscles rebuild and rejuvenate. Together these high-quality proteins represent the Gold Standard for round-the-clock muscle building and recovery. Both are enzyme fortified. Both are instantized to mix easily in water, milk, or your favorite beverage. To optimize your shakes, try using the custom shaker cup included with your 24 Pak. The bigger picture of casein: Rapid protein use is desirable immediately before and after exercise to help refuel recovering muscles, but delayed 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 tend to thicken in the stomach. Because of this, it can take more than twice as long for our Gold Standard 100% Casein to be broken down into it's amino acid subcomponents than other proteins. By blending premium micellar and calcium caseins, we've created a protein formula that's truly time-released. Carefully manufactured in the United States by ON.