🟢 100/100

This product looks safe

  • No ingredients exceed tolerable upper intake levels
  • Limited research evidence available for ingredients
B Label Compliance Grade

Product Label

📸

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Label Data

37.5 Gram(s) Serving Size
24 Servings
Amino acid/Protein Product Type
0% Evidence Coverage

Supplement Facts — Evidence Check

Calories
140 Calorie(s)
Total Fat
1.5 Gram(s) (2% DV)
Cholesterol
20 mg (7% DV)
Sodium
270 mg (11% DV)
Total Carbohydrates
8 Gram(s) (3% DV)
Protein
24 Gram(s) (48% DV)
Vitamin A
Calcium
(40% DV)
Vitamin C
Iron
(2% DV)

Other Ingredients

Micellar Casein Cocoa Natural flavor Honey powder Sugar Salt Cellulose Gum Lecithin Rebaudioside A

Label Claims — Verification

Nutrient
All Other
Structure/Function
All Other (99% of products) Structure/Function (76% of products) Nutrient (58% of products)

Target Groups

Adult (18 - 50 Years)

Product Information

📋 Directions for Use

Directions: Shaker: Using a shaker cup is the easiest and most convenient way to mix up a consistently great casein shake every time. Just add one scoop of Gold Standard 100% Casein to your shaker cup and then pour in 10-12 fl oz 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 scoop with 8-10 fl oz of water, milk, or your favorite beverage. For a milder tasking, less sweet shake, use 12-14 fl oz of liquid per scoop. Don't have a shaker cup? Visit www.optimumnutrition.com and order a custom shaker, or visit your local health food store or gym. Blender: Add one scoop of Gold Standard 100% Casein to a blender filled with 10-12 fl oz 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 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 scoop of Gold Standard 100% Casein to a glass filled with 10-12 fl oz 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: For healthy adults, consume enough protein to meet your daily protein requirements with a combination of high protein foods and protein supplements throughout the day as part of a balanced diet and exercise program.

⚠️ Warnings & Precautions

Notice: Use this product as a food supplement only. Do not use for weight reduction.

Contains: Milk and soy.

🧪 Formulation Notes

The true strength of casein Faster digesting protein is desirable immediately before and after exercise to help fuel recovering muscles, but slow digestion and absorption may be more beneficial at other times - including bedtime when your body typically goes for hours without food. Casein proteins are acid sensitive and tend to thicken in the stomach. Compared to some other proteins, it can take longer for our Gold Standard 100% Casein to be broken down into its amino acid subcomponents.

Gold Standard Casein is also free of artificial flavors, sweeteners, and synthetic colors and uses only protein from premium micellar casein to create a protein formula that's truly time-released.

No artificial flavors, sweeteners,or synthetic colors.

Loaded with micellar casein. 24 grams of time-released protein per serving. 4.7 grams of naturallying occurring BCAAs (leucine, isoleucine, and valine). 4.7 grams of naturally occurring glutamine and glutamic acid in every scoop.

Manufactured in the USA This product contains ingredients of international and domestic origin

24 g protein 9.6 g essential amino acids 4 g sugar Naturally flavored Slow-acting protein

No artificial flavors or sweeteners

100% of the protein from casein

Additional Information

True strength optimumnutrition.com Serving scoop included, but may settle to the bottom during shipping.

Naturally occurring amino acid profile Essential amino acids (EAAs) 9.6 G Tryptophan Valine Threonine Isoleucine Leucine Lysine Phenylalanine Methionine Conditionally essential amino acids (CAAs) 10.2 G Arginine Cystine Tyrosine Histidine Proline Glutamine & Glutamic Acid Nonessential amino acids (NAAs) 4.2 G Aspartic acid Serine Glycine Alanine Typical amounts per serving 4.7 g BCAAs and 4.7 g of glutamine and glutamic acid

Beyond the basics

Authentic Optimum Nutrition Project To ensure the authenticity of this product, make sure the on hologram stripe is present on the neckband. Further info at: www.optimumnutrtion.com/authentic

Store in a cool, dry place.

Contents sold by weight not volume.

Percent daily values are based on a 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs: Calories: 2,000 2,500 Total fat less than 65 g 80 g Sat. fat less than 20 g 25 g Cholesterol less than 300 mg 300 mg Sodium less than 2,400 mg 2,400 mg Total carbohydrate 300 g 375 g Dietary fiber 25 g 30 g Protein 50 g 65 g Calories per gram: Fat 9 Carbohydrate 4 Protein 4

Product Details

UPC / SKU 7 48927 02426 5
DSLD Entry Date 2020-04-23
Product Type Amino acid/Protein
Form Powder
DSLD ID 218538
Data Updated 2026-04-11

Research Evidence

337 Research Sources
54 Avg Quality Score
161 Meta Analysis
68 Systematic Review
51 Rct
48 Clinical Trial
2 Other
2 Regulatory Source
1 Narrative Review
1 Cochrane Review
1 Guideline
1 Openfda Safety
A Vitamin A supplementation for preventing morbidity and mortality in children from six months to five years of age
Meta Analysis The Cochrane database of systematic reviews 2017
A Vitamin A supplementation for the prevention of morbidity and mortality in infants six months of age or less
Meta Analysis The Cochrane database of systematic reviews 2011
A Vitamin A supplementation for reducing the risk of mother-to-child transmission of HIV infection
Meta Analysis The Cochrane database of systematic reviews 2011
A Vitamin A supplements for preventing mortality, illness, and blindness in children aged under 5: systematic review and meta-analysis
Meta Analysis BMJ (Clinical research ed.) 2011
A Fortification of staple foods with vitamin A for vitamin A deficiency
Systematic Review The Cochrane database of systematic reviews 2019
A Vitamin A supplementation for the prevention of morbidity and mortality in infants one to six months of age
Narrative Review The Cochrane database of systematic reviews 2016
A Vitamin A and fish oils for preventing the progression of retinitis pigmentosa
Meta Analysis The Cochrane database of systematic reviews 2020
A Exercise training-induced changes in exerkine concentrations may be relevant to the metabolic control of type 2 diabetes mellitus patients: A systematic review and meta-analysis of randomized controlled trials
Meta Analysis Journal of sport and health science 2023
A Food fortification with multiple micronutrients: impact on health outcomes in general population
Meta Analysis The Cochrane database of systematic reviews 2019
A Oral vitamin A supplements to prevent acute upper respiratory tract infections in children up to seven years of age
Meta Analysis The Cochrane database of systematic reviews 2024
View all evidence for Vitamin A →

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