Gold Standard 100% Casein – Slow-Release Protein for Overnight Recovery
Gold Standard 100% Casein by Optimum Nutrition is a premium slow-digesting protein designed to support muscle recovery, maintenance, and repair during extended periods without food — especially while you sleep.

Each serve delivers 24g of micellar casein, a high-quality milk-derived protein that releases amino acids gradually for sustained nourishment. Unlike fast-absorbing whey, micellar casein forms a gel-like consistency in the stomach, slowing digestion and extending amino acid delivery — helping preserve lean muscle, support recovery, and promote satiety overnight.

Key Benefits:

• 24g of micellar casein for slow, sustained muscle recovery

• Prolonged amino acid release ideal for overnight or fasting periods

• Nearly 5g of naturally occurring BCAAs for repair and endurance

• Low in sugar and fat — just 1g or less per serve

• Informed Choice Certified and banned-substance tested

• Smooth, satisfying texture and delicious flavour options