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Optimum Nutrition Gold Standard Casein 1820g

(3 reviews)
SKU: 23027



Slow Protein Digestion, Anti Catabolic Miceller Protein With Glutamine!

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 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. Casein is the most abundant protein present in milk. It is considered a high quality protein because it is easily assimilated and it supplies sufficient quantities of amino acids that cannot be synthesized by the body.

Another benefit is increased satiety (feeling of fullness or satisfaction). Casein exerts a slight pressure on the stomach walls. In effect, this pressure signals to the brain to stop eating because the stomach is full. Casein is the most slowly digested and absorbed type of protein. This helps create a “timed-release” effect, providing a steady stream of amino acids to your muscles over a long period of time. The net result is a greatly enhanced anti-catabolic environment which is much more friendly to growth and recovery.

Bodybuilders and athletes looking to build lean muscle, prevent muscle breakdown, and reduce recovery times, and individuals interested in improving the quality of their sleep can greatly benefit from casein.

Casein Research

Perhaps the most interesting kernel on casein to come from the scientific community is the Boirie study, which found that casein managed about a 31% increase in protein synthesis (to whey’s 68%)… but also reduced whole-body protein degradation (catabolism) by 34%. More importantly, researchers found that casein contributed to a positive nitrogen balance an average of 7 hours after ingestion.

The Biorie study has since spurred further research of casein. Another study looked at the effect casein might have on body composition when used as part of a 12-week weight-training program. Participants were separated into two groups, each of which maintained a balanced diet including 75 grams of protein per day. The difference was in the sources of protein used: while the first group relied on whey-based drinks to reach their daily protein requirements, the second group made use of milk protein isolates (80% casein, 20% whey). At the end of the study, the milk protein isolate group had lost more fat (15.4 lbs. vs. 9.2 lbs.), gained more lean mass (9 lbs. vs. 4.4 lbs.), and gained more upper and lower body strength than the whey group.

Additional studies, though not as influential, have indicated casein may lower “bad” LDL cholesterol levels and increase “good” HDL cholesterol levels at the same time. In people whose immune systems were weakened by illness or disease, casein appears to demonstrate anti-viral and immune system-enhancing properties. Casein has even been linked to decreases in inflammatory factors in cardiovascular disease.

Supplement Facts:

Container Size: 4 Lbs.
Serving Size: 1 Heaping Scoop (34g)
Servings Per Container: 53
Flavor: Chocolate Supreme

Amount Per Serving
Calories    120
Calories From Fat    10
Total Fat    1g    2%
Saturated Fat    0.5g    3%
Trans Fat    0g
Cholesterol    15mg    5%
Sodium    190mg    8%
Total Carbohydrate    3g    1%
Dietary Fiber    1g    4%
Sugars    1g
Protein    24g    48%
Vitamin A        0%
Vitamin C        0%
Calcium        50%
Iron        0%

Ingredients: Micellar Casein, Cocoa (Processed With Alkali), Natural And Artificial Flavors, Salt, Gum Blend (Cellulose Gum, Xanthan Gum, Carrageenan), Lecithin, Acesulfame Potassium, Sucralose, Aminogen®.

NOTE: Supplement facts, ingredients, and servings per container may vary by flavor.

Allergen Information: Contains Milk, Wheat, And Soy (Lecithin) Ingredients.

Typical Amino Acid Profile Per Serving(mg):
Alanine 636
Arginine 830
Methionine 617
Aspartic Acid 1523
Phenylalanine 1096
Cystine 76
Proline 2320
Glutamine 4744
Serine 1338
Glycine 489
Threonine 996
Histidine 659
Tryptophan 280
Isoleucine 1257
Tyrosine 811
Leucine 2040
Valine 1542

Directions: 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.


Additional information

Weight2.1 kg

Chocolate Supreme, Creamy Vanilla, Strawberry



3 reviews for Optimum Nutrition Gold Standard Casein 1820g

  1. xenios antreou

    this casein is perfect..

  2. Eric Chester

    Excellent casein ! Vanilla flavor is great

  3. Loukas Christoforou

    Casein and glutamine supplement .
    totally recommended !

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