Optimum Nutrition Gold Standard 100% Casein

Overnight Protein Power for Lean Muscle Support

Optimum Nutrition Gold Standard 100% Casein is a premium slow release protein powder designed to fuel muscle recovery when your body needs it most during sleep or long gaps between meals. Packed with 24g of high-quality micellar casein, this formula delivers 9g of essential amino acids (EAAs) to support muscle growth, repair, and maintenance.

Unlike fast-absorbing whey, Optimum Nutrition Gold Standard 100% Casein digests slowly, giving your muscles a steady supply of protein over several hours—perfect for overnight recovery or fasting periods.

Key Benefits

• 24g of slow-digesting protein per serving
• 9g of EAAs to support muscle repair
• Low fat (0.7g) with no added sugar (Chocolate Supreme)
• Rich in magnesium & zinc to support your immune system*
• Helps maintain lean muscle mass
• Banned substance tested – trusted by athletes

When to Use

• Before Bed – Fuel your muscles overnight with a slow protein drip
• Between Meals – Keep protein levels steady throughout the day
• During Fasting – Helps preserve lean mass during long breaks from food
• Daily Nutrition – Mix into shakes, porridge, smoothies, or baking

How to Use:

Mix 1 heaped scoop with 300-360 ml of cold water. Stir, shake, or blend until smooth. For variety, add to smoothies, protein balls, muffins, or oats.

What is Casein Protein?

Casein is a dairy based, slow digesting protein that delivers a prolonged release of amino acids to support muscle repair and normal protein synthesis – especially during rest or sleep.

A delicious, effective way to repair and rebuild, while you sleep.