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Optimum Nutrition Naturally Flavored Gold 100% Casein

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No Artificial Flavors - Optimum Nutrition Naturally Flavored Gold 100% Casein

Optimum Nutrition Naturally Flavored Casein Benefits

  • Promotes Nighttime Muscle Recovery
  • 24g of Protein per Serving
  • 9g of Essential Amino Acids

How to Take Optimum Nutrition Naturally Flavored Casein

Mix 1 scoop of the powder into 8-14 fl. oz. of cold water or milk using a shaker cup. For best results, take 1 serving 30-60 minutes after your workout, before bed, or for a protein-packed snack.

Optimum Nutrition Naturally Flavored Casein Ingredients

Nutrition Facts

48 Servings per Container

Serving Size About 1 Scoop (37.5g)

Amount per Serving

Calories 130

%Daily Value*

Total Fat 1g 1%

Saturated Fat 0.5g 3%

Cholesterol 15mg 5%

Sodium 280mg 12%

Total Carbohydrate 7g 3%

Dietary Fiber 1g 4%

Total Sugars 3g

Includes 2g Added Sugars 4%

Protein 24g 48%

Calcium 530mg 40%

Iron 1.3mg 8%

Potassium 210mg 4%

*The % Daily Value tells you how much nutrient in a serving of fod contributes to a daily diet. 2,000 calories a day is used for general nutrition advice. 

Ingredients: Micellar casein, Cocoa powder (processed with alkali), cane sugar, natural flavor, salt, lecithin, cellulose gum, dried honey, stevia leaf extract (Red A). 

Contains: Milk and Soy.

Optimum Nutrition Naturally Flavored Casein Warnings

Healthy adults should consume enough protein to meet your daily protein requirements with a combination of high protein foods and protein supplements through the day as part of a balanced diet and exercise program. 


Boirie Y, Dangin M, Gachon P, Vasson MP, Maubois JL, Beaufrère B. Slow and fast dietary proteins differently modulate postprandial protein accretion. Proc Natl Acad Sci U S A. 1997 Dec 23;94(26):14930-5. doi: 10.1073/pnas.94.26.14930. PMID: 9405716; PMCID: PMC25140.

Warning Concerning California Residents: This product may contain chemicals known to the State of California to cause cancer and birth defects or reproductive harm.