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Optimum Nutrition
100% Casein
Nighttime Use Protein Powder for Building Muscle

Gold Standard 100% Casein™ is a slowly digesting premium micellar casein protein. Casein protein provides longer lasting amino acid support. Because of their unique slow-digesting qualities, caseins are described as anti-catabolic or muscle-protecting proteins.

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Nutrition Information

Serving Size: 1 Scoop (33g)
Servings per container: 27(908g) 55(1815g)
Amount Per1 Scoop100g%RI*
Energy Value116 kcal
486 kJ
351 kcal
1472 kJ
Total Fat0.7 g2 g1%
Saturated Fat0.3 g0.9 g2%
Total Carbohydrate3.6 g11 g1%
Sugars1.6 g4.9 g**
Fiber1 g3 g**
Protein23.8 g72.1 g49%
Salt0.605 g1.835 g10%
Calcium680 mg2061 mg85%
Sodium242 mg734 mg**
* Percentage of Recommended Intake per one full serving.
** Recommended Intake are not established.
Ingredients / Other Ingredients: Micellar Casein, Natural And Artificial Flavors, Inulin, Salt, Gum Blend (Cellulose Gum, Xanthan Gum, Carrageenan), Lecithin, Sucralose, Aminogen®, FD&C Yellow #5







Product Description

Right before or after training, rapidly digesting whey protein helps start recovery, a process that can take up to 48 hours. Between meals and before bed, when nutritional support won’t be available for a while, casein protein can help provide longer lasting amino acid support. Casein proteins are pH sensitive and gel in the acidic environment of the stomach. As a result, it can take longer for caseins to be broken-down into their amino acid subcomponents than whey and other proteins. Because of their unique slow-digesting qualities, caseins are described as anti-catabolic or muscle-protecting proteins.

Product Highlights:

  • 24g of Anti-Catabolic Micellar Casein
  • Nearly 5g of Naturally Occurring BCAAs per Scoop
  • Nearly 5g of Naturally Occurring Glutamine and Glutamic Acid per Scoop
  • Very Low Levels of Fat, Sugar & Carbohydrates
  • Ideal for Use Between Meals and Before Bed
Directions for use

Using a shaker cup is the easiest and most convenient way to mix up a consistently great casein shake every time. Just add one heaping scoop of Gold Standard 100% Casein™ to a shaker cup filled with 300-360 ml of your preferred beverage. Cover and shake for 25-30 seconds. TIP: Adjust the intensity of your Gold Standard 100% Casein™ by varying the amount of liquid that you use to prepare it. For a bolder flavor with slightly more body and sweetness, mix one heaping scoop with 240-300 ml of water, milk, or your favorite beverage. For a milder tasting, less sweet shake, use 360-410 ml of liquid per scoop.

BLENDER: Add one heaping scoop of Gold Standard 100% Casein™ to a blender filled with 300-360 ml of water, milk, or your favorite beverage. Blend for 20-30 seconds. Then add 3-4 ice cubes and blend for an additional 30 seconds.

SHAKE UP YOUR SHAKE: By adding a few high-energy ingredients to your shake you can blend up a delicious meal: try adding fresh or frozen fruits (strawberries, bananas, peaches, etc.), peanut butter, flaxseed oil, yogurt, coconut, slivered almonds, or other ingredients.

STACK YOUR SHAKE: By adding supplements like Micronized Creatine, Glutamine, Taurine, and/or INSTANTIZED BCAA powders, you can make Gold Standard 100% Casein™ an even more powerful recovery product.

SPOON STIRRED: If you forgot your shaker cup or don't have time to get out the blender, you can just add one heaping scoop of Gold Standard 100% Casein™ to a glass filled with 300-360 ml of cold water, milk, or your favorite beverage. Then mix it up with a spoon for about 30 seconds or until powder is dissolved.

SUGGESTED USE: Consume approximately 2 grams of protein per kilogram of body weight per day through a combination of high protein foods and supplements. For best results, consume your daily protein allotment over several small meals spread evenly throughout the day. TIP: Try using "slower" Gold Standard 100% Casein™ with "faster" proteins like Gold Standard 100% Whey™ or Pro Complex® at different times for maximum effectiveness. Take Gold Standard 100% Casein™ immediately before bed and in between meals when delayed protein delivery is desired. Drink Gold Standard 100% Whey™ or Pro Complex® proteins before and immediately after workouts for a rapid "shot" of amino acids.



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