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ON 100% Casein Gold Standard Protein

Optimum Nutrition Gold Standard 100% Casein

An Product
Slow-Digesting Protein for Overnight Muscle Recovery*
  • 24g of slow-digesting micellar casein per serving
  • Nearly 5g of naturally occurring BCAAs
  • Ideal for use between meals and before bed
  • 110-120 calories per serving
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Deals
LIMITED TIME PRICE CUT
LIMITED TIME PRICE CUT
Buy 1 ON Gold Standard 100% Casein 2lbs for only $45.99! Limited time only.
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Buy 1 ON Gold Standard 100% Casein 4lbs for only $79.99! Limited time only.
Buying Options
$53.99
$45.99 45.9900
2lbs
25 Servings | $1.84 Per Serving
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$92.99
$79.99 79.9900
4lbs
53 Servings | $1.51 Per Serving
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Nutrition Info

2lbs Chocolate Peanut Butter

Serving Size: 34g (About 1 Scoop)
Servings Per Container: 25
Amount Per Serving
Amt
%DV
Calories
120
Total Fat
1g
1%
Cholesterol
15mg
5%
Sodium
240mg
10%
Total Carbohydrate
4g
1%
Dietary Fiber
1g
4%
Total Sugars
1g
Includes 0g Added Sugars
0%
Protein
24g
48%
Calcium
500mg
40%
Iron
1.4mg
8%
Potassium
200mg
4%
Magnesium
85mg
20%
Zinc
11mg
100%
Not a significant source of saturated fat, trans fat and vitamin D.
* % Daily Value is based on a 2,000 calorie diet. Your daily values may be higher or lower based on your calorie needs.
† Daily Value (DV) not established.
Ingredients
Micellar Casein, Cocoa Powder (Processed with Alkali), Natural And Artificial Flavor, Salt, Gum Blend (Guar Gum, Gum Acacia, Xanthan Gum), Sunflower and/or Soy Lecithin, Magnesium Oxide, Acesulfame Potassium, Sucralose, Zinc Sulfate Monohydrate.
Allergen Warning
Contains: Milk and Soy.

Mix 1 scoop into 8 to 14 fluid ounces of cold water or milk using a shaker cup. For best results, mix up your shake 30 to 60 minutes after your workout, before bed, or use as an anytime snack.

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. Keep out of reach of children.

Directions
Warnings
Expand Info
Product Information

Beyond the Basics

  • 24 Grams of Protein per Serving to Help Build and Maintain Muscle*
  • Nearly 5 Grams of Naturally Occurring BCAAs per Serving to Support Endurance and Recovery*
  • Ideal for Use Between Meals and Before Bed
  • 40% of the Daily Value for Calcium per Serving
  • 110-120 Calories per Serving
  • 0.5-1 Gram of Fat per Serving
  • 1 Gram of Sugar per Serving

Casein, a slower digesting and absorbing protein can be used after exercise, between meals or before bed to help support satiety and muscle recovery. GOLD STANDARD 100% CASEIN™ delivers BCAAs to recovering muscles for several hours. By using only premium micellar casein as a protein source, we’ve created a protein powder that sets the GOLD STANDARD® for slow digesting protein support.

Muscle Fuel Around the Clock

Optimum Nutrition has you covered day and night. Try Optimum Nutrition 100% Whey Gold Standard before and immediately after workouts for a fast-acting rapid shot of amino acids right when you need it, and Optimum Nutrition 100% Casein Gold Standard between meals and before bed for prolonged, sustained coverage.

Reviews
Overall Rating
4.7 out of 5 stars
Reviews (571)
Verified Buyers (550)
Review Graph
  • 5 star
    80%

  • 4 star
    15%

  • 3 star
    3%

  • 2 star
    1%

  • 1 star
    1%

Top Rated Flavors
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  • Cookies & Cream
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Michael K
Build Muscle
Verified Buyer
Price has gone up so much. However one of the casein proteins you can buy. Great taste too!*
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2024-03-15 16:10:55Z
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Overall Rating
  • Chocolate Peanut Butter
  • Creamy Vanilla
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Nameera P
Build Muscle
Verified Buyer
Packaging could be better, received in bad condition with jar being bit damaged *
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2024-02-24 12:31:22Z
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Overall Rating
  • Chocolate Supreme
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Philip R
Build Muscle
Verified Buyer
Great taste and great quality, very smooth on my stomach , its really does the job*
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2024-01-08 13:40:59Z
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  • Chocolate Supreme
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Joanne C
Verified Buyer
I love this product, the flavor and consistency is delicious. *
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2023-12-18 13:04:50Z
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  • Chocolate Peanut Butter
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Tomasz R T
Verified Buyer
Great protein! It's like a pudding. Very tasty and nice consictency*
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2023-12-15 15:56:02Z
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  • Chocolate Supreme
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Joanne C
Verified Buyer
I've tried many casein proteins and this one is definitely my favorite!*
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0 of 0 found this helpful
2023-12-02 16:10:23Z
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  • Chocolate Supreme
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Joanne C
Verified Buyer
The chocolate supreme flavor is delicious and mixes well. Thick and not chalky   *
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2023-11-03 09:00:59Z
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  • Chocolate Supreme
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Joanne C
Verified Buyer
I love this flavor, it mixes well and is not chalky. I've tried other casein protein powders but this is my favorite. *
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2023-11-03 09:00:04Z
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  • Chocolate Peanut Butter
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Eric R
Build Muscle
Verified Buyer
Amazing protein, only product I use. Everything else is inferior,*
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2023-10-01 19:33:10Z
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Overall Rating
  • Creamy Vanilla
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Brett D
Verified Buyer
Very good casein but not as sweet tasting as I would like. Bakes well also*
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2023-09-06 12:57:26Z
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* Muscle & Strength does not imply any medical claims from this review. There are no guarantees of specific results and results may vary.
* These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.

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