Optimum Nutrition 100% Casein Protein 4 lbs


  • 24g of Micellar Casein
  • 9g of essential amino acid
  • slowly digesting protein for between meals and before bed
  • 120 calories per serving
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  • The Original All Casein Protein Powder
  •  Bodybuilding.com 2013 & 2015 Casein Supplement of the Year
  • Made Exclusively With Micellar Casein
  •  24 Grams of Slowly Digesting Protein Per Serving
  • Use Between Meals to Support Satiety and/or Before Bed as Your PM Protein*

True Strength is a journey. It never rests, it never quits. It’s about overcoming obstacles, accomplishing goals, and recognizing achievements. And then it resets to achieve again. As your trusted sports nutrition partner in goal achievement, ON demonstrates that same passion while crafting our products. From the raw materials we source to our state-of-the-art manufacturing processes, no compromises are made. You set the bar higher after every workout, we set the bar higher to redefine the industry standards and ensure you realize optimum results.


After training, you want a fast-acting whey protein shake to kick-start the recovery process. But that process can take up to 48 hours to complete. Supplementing your healthy, balanced diet with slowly digesting Gold Standard 100% Casein™ can help support a feeling of fullness while providing a slow, steady flow of Essential Amino Acids including the BCAAs to muscle tissues.* With nine different flavors to choose from, this is the standard all other slowly digesting proteins are measured against.


As one of the few companies to operate state-of-the-art manufacturing facilities that are GMP compliant, ON assures that every shake will mix up effortlessly because of its first-to-market instantization process.


Optimum Nutrition is legendary for both quality and innovation. In addition to producing the world’s best-selling whey protein, ON’s Gold Standard 100% Casein™ introduced slow-digesting nighttime protein to the weight training world and Essential Amino Energy™ created the anytime energy category in sports nutrition. When technology makes advancements possible, ON will be the company bringing it first to your shaker cup.

Supplement Facts
Serving Size: 1 Heaping Scoop
Servings per Container: 53 Amount Per Serving % Daily Value
Calories 120 *
Calories from Fat 10 *
Total Fat 1 g 2%
  Saturated Fat 0.5 g 3%
  Trans Fat 0 g *
Cholesterol 10 mg 3%
Sodium 220 mg 9%
Total Carbohydrate 3 g 1%
  Dietary Fiber 1 g 4%
  Sugars 0 g *
Protein 24 g *
Vitamin A 0%
Calcium 60%
Vitamin C 0%
Iron 0%
Typical Amino Acid Profile
  Tryptophan 292 mg *
  Valine 1609 mg *
  Threonine 1039 mg *
  Isoleucine 1312 mg *
  Leucine 2129 mg *
  Lysine 1822 mg *
  Phenylalanine 1144 mg *
  Methionine 644 mg *
Conditionally Essential Amino Acids (NAAs)
  Arginine 866 mg *
  Cystine 79 mg *
  Tyrosine 846 mg *
  Histidine 688 mg *
  Proline 2421 mg *
  Glutamine & Precursors 4950 mg *
Nonessential Amino Acids (NAAs)
  Aspartic Acid 1589 mg *
  Serine 1396 mg
  Glycine 510 mg
  Alanine 664 mg *
*Daily value not established.
Other Ingredients: Micellar casein, natural and artificial flavors, inulin, salt, lecithin, gum blend (cellulose gum, xanthan gum, carrageenan), sucralose, Aminogen® and FD&C yellow #5.
Allergen Information: Contains milk and soy (lecithin) ingredients.

Do not use as a sole source of nutrition for weight loss or maintenance.

These statements have not been evaluated by the FDA. These products are not intended to diagnose, treat, cure, or prevent any disease.

Additional information

Weight 4 lbs

Chocolate, Vanilla


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