🟢 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

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

Supplement Facts — Evidence Check

Calories
120 Calorie(s)
Total Fat
1 Gram(s) (2% DV)
Cholesterol
15 mg (5% DV)
Sodium
240 mg (10% DV)
Total Carbohydrates
3 Gram(s) (1% DV)
Protein
24 Gram(s) (48% DV)
Vitamin A
Vitamin C
Calcium
(50% DV)
Iron

Other Ingredients

Micellar Casein Wheat Flour Niacin Iron, Reduced Thiamine Mononitrate Riboflavin Folic Acid Sugar Palm Oil Palm Kernel Oil Cocoa High Fructose Corn Syrup Corn Flour Salt Dextrose Sodium Bicarbonate Soy Lecithin Natural & Artificial Flavors Salt Lecithin Cellulose Gum Xanthan Gum Carrageenan Acesulfame Potassium Sucralose Aminogen

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: Using a shaker cup is the easiest and most convenient way to mix up a consistently great casein shake every time. Just add one heaping scoop of Gold Standard 100% Casein to a shaker cup filled with 10-12 ounces of your preferred beverage. Cover and shake for 25-30 seconds. Tip: Adjust the flavor and texture of your Gold Standard 100% Casein shake by varying the amount of liquid you use to prepare it. For a bolder flavor with a slightly thicker body and more sweetness, mix one scoop with 8-10 oz of water, milk or your favorite beverage. For a thinner, milder tasting, less sweet shake, use 12-14 oz of liquid. Blender: Add one heaping scoop of Gold Standard 100% Casein to a blender filled with 10- 12 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. Spoon stirred: If you forgot your shaker cup or don't have time to get out the blender, you can just add one heaping scoop of Gold Standard 100% Casein to a glass filled with 10- 12 oz of cold water, milk, or your favorite beverage. Then mix it up with a spoon for about 30 seconds 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.

Allergen Information: Contains milk, soy (lecithin) and wheat ingredients.

🧪 Formulation Notes

The true strength of casein Faster digesting protein is desirable immediately before and after exercise to help refuel 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 thicken in the stomach. Compared to other proteins it can take longer for our Gold Standard 100% Casein 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.

Slow digesting premium micellar casein protein Cookies and cream Naturally & artificially flavored

24 g Protein 9 g Essential amino acids 1 g Sugar

Protein powder drink mix

100% protection from micellar casein

Nearly 73% protein by weight (24g of protein per 33g serving size). 24 grams of slow-digesting micellar casein per serving. Nearly 5 grams of naturally occurring BCAAs (leucine, isoleucine, and valine) per serving. Nearly 5 grams of naturally occurring glutamine & glutamic acid in every scoop.

Additional Information

Authentic Optimum Nutrition product To ensure authenticity of this product, make sure the ON holographic stripe is present on the neckband. Further info at www.optimumnutrition.com/authentic

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Serving scoop included, but may settle to the bottom during shipping

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

Naturally occurring amino acid profile Essential amino acids (EEAs) tryptophan valine threonine isoleucine leucine lysine phenylalanine methionine ~9.6g Conditionally essential amino acids (CAAs) arginine cystine tyrosine histidine proline glutamine & glutamic acid ~10.3 g Nonessential amino acids (NAAs) aspartic acid serine glycine alanine ~4.1 g Typical amounts per serving Nearly 5g of BCAAs and nearly 5g of glutamine and glutamic acid

Don't have a shaker cup? Visit optimumnutrition.com and order a custom shaker or visit your local health food store or gym. Shake up your shake: By adding fresh or frozen fruits peanut butter, flax seed oil, coconut and other ingredients, you can make even more delicious shake. Stack your shake: Customize your Gold Standard 100% Casein shake by adding recovery products like creatine, glutamine and BCAA powders.

Store in a cool, dry place. Content sold by weight not volume.

www.optimumnutrition.com

Calories: 2,000 2,500 Total Fat Less than 65g 80g Sat Fat less than 20 g 25 g Cholesterol Less than 300 mg 300 mg Sodium Less than 2,400 mg 2,400 mg Potassium 3,500 mg 3,500 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

Beyond the basics Best-selling micellar casein.

Product Details

UPC / SKU 7 48927 02428 9
DSLD Entry Date 2024-09-25
Product Type Amino acid/Protein
Form Powder
DSLD ID 308427
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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