Optimum Nutrition Gold Standard 100% Casein is a slow-digesting protein powder made from 100% micellar casein, designed to provide a steady release of amino acids over several hours — ideal before bed or between meals.

Each serving delivers 24g of slow-digesting, anti-catabolic protein, along with 4.9g of naturally occurring BCAAs and 9g of EAAs to help support muscle recovery while you sleep or go long stretches without food.

Gold Standard 100% Casein mixes into a thick, creamy shake and helps keep you feeling full between meals.

Key Benefits

24g of 100% micellar casein protein per serving
Slow-digesting for a steady release of amino acids
4.9g of naturally occurring BCAAs and 9g of EAAs
Supports overnight muscle recovery
Helps keep you feeling full between meals
Mixes into a thick, creamy shake

How to Use

Mix 1 scoop with 6-8 fl oz of cold water or milk. Consume before bed or between meals for a sustained release of protein.

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