Optimum Nutrition Gold Standard 100% Casein Protein (4lbs)

Optimum Nutrition Gold Standard 100% Casein Protein is specially formulated with micellar casein, a slow-digesting protein that can help support muscle recovery and satiety between meals and overnight. Ideal for nighttime use or long periods without food, this formula is designed for individuals who want a sustained-release protein to complement their daily fitness and nutrition goals.

Each serving delivers 24 grams of high-quality protein sourced exclusively from premium micellar casein. With a naturally rich amino acid profile—including nearly 5 grams of naturally occurring BCAAs—this protein powder supports muscle maintenance and recovery when combined with regular resistance training. Its slow absorption rate makes it an excellent option before bed, after workouts, or between meals to help reduce overnight muscle breakdown and support your body’s recovery rhythm.

In addition to its protein content, each scoop contains calcium, magnesium, and zinc—minerals that play important roles in bone health, muscle function, and cellular activity. With only 120 calories, 1 gram of sugar, and 0.5 grams of fat per serving, it fits well into a variety of meal plans, whether you’re looking to increase your protein intake, manage your macronutrients, or simply maintain a balanced diet.

Gold Standard 100% Casein mixes smoothly in cold water or milk and can be prepared using a shaker cup. Use it as part of a high-protein diet and exercise program to help support your overall nutrition goals.

This product is intended for healthy adults. Not for use as a sole source of nutrition. It is not intended to diagnose, treat, cure, or prevent any disease. Keep out of reach of children. Contains milk and soy.

• 24g micellar casein protein per serving
• Slow-digesting protein supports overnight recovery
• Naturally rich in BCAAs to support endurance and repair
• Just 1g sugar and 0.5g fat per scoop
• 40% Daily Value of calcium per serving
• Low-carb, low-calorie formula
• Gluten-free (not certified)
• Mixes easily in water or milk
• Ideal before bed or between meals