Optimum Nutrition

100% Casein

Optimum Nutrition 100% Casein Protein

“Slow Digestion Protein!”

Product Info.

Prices Subject to change Without Notice

Serving Size: 1 Heaping Scoop(34g)
Size: 2.0 Lbs. Servings - 26
Size: 4.0 Lbs. Servings - 53

Optimum Nutrition 100% Casein Ingredient Listing

Recommended Use:
Use ON 100% Casein Protein first thing in the morning, immediately before bed, in place of small meals, and/or any other time when delayed protein absorption is desired. To encourage a positive nitrogen balance, consume approximately 1 gram of protein per pound of body weight per day from a combination of high protein foods and supplements. For even better results, consume your daily protein allotment over several small meals spread evenly throughout the day.


These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.


Optimum Nutrition 100% Casein Header

Optimum Nutrition 100% Casein Protein - Optimum Nutrition 100% Casein Protein is a slow digestion and absorption protein formula designed to be most beneficial at times when your body typically goes for hours without food. 100% Casein Protein is acid sensitive and thickens in the stomach when compared to some other proteins. This causes it to take longer to be broken down into its amino acid subcomponents. By using only premium micellar casein as a protein source, we've created a formula that sets the standard for slow digesting protein support. 23g of Micellar Casein per serving.

Functional Benifits

Functional Benifits

Supports Muscle Growth and Recovery while you sleep!

Sometimes slower is better - especially when it comes to the rate of protein digestion. While rapid protein absorption is desirable immediately before or after exercise, delayed release is probably more beneficial throughout the remainder of the day.

Casein protein (pronounced kay-seen) is the predominant protein found in milk. It makes up about 80% of the protein in cow’s milk, while the remaining 20% of protein in milk is whey. Casein protein is extracted from the milk through ultra filtration, without the use of chemicals. This process increases the amount of bioactive milk peptides that support immune function as well as enhance muscle growth. Casein protein has an excellent amino acid profile and is primarily known as an extremely slow-digesting protein.

Casein proteins are pH sensitive and gel in the acidic environment of the stomach. As a result, it can take more than twice as long for caseins to be broken-down into their amino acid subcomponents than whey and other proteins. Because of these unique "time-released" qualities, casein proteins are aptly described as being anti-catabolic, or muscle-protecting, proteins.

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Product Catagory:
Protein Powders

Product FAQ:
Micellar Casein

Optimum Nutrition Brand

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