Product Overview

• ON Gold Standard 100% Casein is a premium-quality, slow-digesting protein powder designed to fuel muscle recovery and growth over extended periods. Perfect for nighttime use or between meals, this formula utilizes micellar casein to deliver a sustained release of amino acids, helping to prevent muscle breakdown.

Product Description : 

• Optimum Nutrition’s Gold Standard 100% Casein is the ultimate protein powder for sustained muscle recovery and repair. Formulated with high-quality micellar casein, this supplement provides a slow and steady release of amino acids to your muscles, making it ideal for nighttime use or prolonged periods without food.


• Each serving delivers 24 grams of premium, slow-digesting protein to help reduce muscle breakdown and support lean muscle maintenance. The rich Chocolate Supreme flavor provides a smooth, indulgent taste, making your protein routine both effective and enjoyable.


• This low-fat, low-sugar formula is fortified with essential amino acids, including BCAAs and glutamine, to enhance muscle recovery and overall performance. Whether you're an athlete or fitness enthusiast, ON Gold Standard 100% Casein is the perfect addition to your routine, ensuring your muscles are fueled long after your workout.

Product Features:

• 24g of premium micellar casein protein per serving to support muscle recovery at nighttime & between meals


• Slow-digesting protein for times you go without food – such as during sleep or between meals or during extended periods during fasting 


• 9g of naturally occurring essential amino acids (EAAs) to support muscle recovery


• Excellent source of magnesium (85mg) & zinc (11mg) in each serving


• 0.5-1 gram of fat per serving to help you easily stay on track with nutrient goals


• Banned substance tested


• Easy mixing with only a glass and spoon


• Four great-tasting flavors

How to use :

• Mix about one scoop (33-34g) of the powder into 8-14 fluid ounces of cold water, milk, or other beverage. Stir, shake, or blend until dissolved. 


• Use 8-10 fluid ounces for a thicker consistency and 12-14 fluid ounces for a thinner consistency.


• For best results, mix up your shake 30-60 minutes before bed, or have it anytime to boost your protein intake.


• For healthy adults, consume enough protein to meet your daily protein requirements with a combination of high protein foods and protein supplements throughout the day as part of a balanced diet and exercise program.

Cautions and Warnings :

• As with any dietary or herbal supplement, you should advise your health care practitioner of the use of this product. If you are nursing, pregnant, or considering pregnancy, you should consult your health care practitioner prior to using this product. Keep out of reach of children.

Ingredients :

• Micellar Casein, Natural and Artificial Flavor, Inulin, Salt, Gum Blend (Cellulose Gum, Xanthan Gum, Carrageenan), Lecithin, Sucralose, Protease (Aminogen), Yellow 5.