Gold Standard 100% Casein
Optimum Nutrition

Gold Standard 100% Casein

Nighttime Use Protein Powder for Building Muscle
Ideal for Between Meals and Before Bed to Promote the Growth and Maintenance of Muscle Mass
8.8  out of 10  (2,611 Reviews)
Limited Time Offer

Save 25% off your order *Exclusions Apply

Product Overview

Overnight Repair with Gold Standard 100% Casein!

Whipped Bites Box

Gold Standard 100% Casein™ is a slow digesting protein that supports muscle growth and repair while you sleep. Each serving is packed with 24g of protein which provides a prolonged supply of amino acids overnight. 24g of Pure Micellar Casein but just 0.5g of fat and no added sugars. Casein proteins are acid sensitive and thicken in the stomach.

Casein is best utilized before bedtime to help maintain muscle mass while your body is in a fasted state. By using only premium micellar casein as a protein source, ON has created a formula that sets the standard for slow digesting protein support.

Micellar Casein is one of the highest quality forms of casein. It is separated from milk through an ultrafiltration process. One of Micellar Casein’s unusual properties is its ability to gel during digestion.

Before Bed

Before Bed

Muscle Support

Muscle Support

Slow Digesting

Slow Digesting

Ratings & Reviews

Gold Standard 100% Casein
Overall Rating
8.8
2,611 Ratings
Verified Buyer Rating
8.8
934 Ratings
Average Flavor Rating
7.9
13 Flavors
Top Rated Flavor
8.4
Chocolate supremo
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Jan 04, 2020
8
Verified Buyer
  • 8 Creamy Vanilla

I tried this flavor first; better than the second order French Vanilla but, I have the Chocolate Supreme on deck. I like the digestion but, have not found the right flavor yet. There is always cottage cheese.

Nov 03, 2019
10
Verified Buyer

Great in the evening, and to make a protein fluff

Sep 07, 2019
10
Verified Buyer
  • 10 Creamy Vanilla

Very good protein, mixes well. I use this as an evening snack.

Aug 29, 2019
10
Verified Buyer
  • 10 Creamy Vanilla

Of all the supplements on the market, this is absolutely the best and the one that really works! And if for some reason you miss a workout or need to lay off for a while, continue taking this because it will maintain the gains you've made. I never mix anything with this other than occasionally adding a dash of pumpkin pie spice to make it taste exactly like egg nog. I drink this while watching a bit of TV before bed and when I'm finished I always feel a bit pumped. Jump into bed and off I GROW!

Jul 23, 2019
9
Verified Buyer
  • 7 Creamy Vanilla

Mixes very thick but that is to be expected for casein. The vanilla is good for me because I can mix it with various fruits or chocolate powder. The vanilla casein does have a distinct smell. Both me and my daughter separately came to the conclusion the powder smells similar to coconut flour. I'm not sure if this is specific to the vanilla or if that is a smell the other flavors also give off. Either way, it helps my muscles recover and rebuild when I know I won't have protein for long stretches of time.

Jul 16, 2019
1
 

To anyone who is doing research, Casein is a marketing ploy. It is a joke of a product. Protein synthesis does not activate until a minimum of 12 grams of protein are in your body. Casein releases less than 6 grams per hour. Your body does not even enter protein synthesis using this product. It is quite literrally empty calories that will just turn to fat. This product is designed only for marketing. Do not become a sucker to the snake oil that is Casein.

Jun 17, 2019
10
Verified Buyer
  • 9 Chocolate Supreme

Best casein in my opinion

Jun 06, 2019
8
Verified Buyer
  • 6 Cookies & Cream

Great product, for someone that is very limited on time in the day-to-day basis. Also perfectly for periods of fasting and/or right before sleep. Maybe a different flavor next time

May 08, 2019
10
 
  • 9 Banana Cream

Fast shippingand great customer service. Mixed the banana cream protein with greek yogurt and water and the flavor is close to that of a real banana smoothie. I'm a fan!

Apr 26, 2019
10
Verified Buyer
  • 10 Chocolate Supreme

Delicious and smooth.

Apr 25, 2019
9
Verified Buyer
  • 5 Mint Chocolate Chip - Exclusive!
  • 10 Chocolate Supreme
Apr 24, 2019
10
Verified Buyer
  • 10 Chocolate Supreme

Straight 10 for me, only tried chocolate supreme and love the taste. Mixes great and tastes like cake mix when I drink it with the egg whites. Great way to get in some slow digesting protein.

Apr 24, 2019
9
Verified Buyer
  • 8 Chocolate Creme

Love the quality of ingredients in this casein! I especially like that they do not use sucralose. Flavor is great, but I would say an 8/10 in that area! I eat this as chocolate pudding every night before bed as I'm in contest prep right now. I do think it has helped me maintain as much muscle as I can while dieting down!

Apr 09, 2019
9
Verified Buyer
  • 8 Chocolate Supreme

Pretty good! Not too sweet and mixes well.

Mar 20, 2019
9
Verified Buyer
  • 7 French Vanilla
2 Sizes
1.8 Kilograms
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3 Flavors
Banana Cream
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Price: € 39,87  (€ 0,71 / Serving)
Flavor Rating: 7.5
Ideal for Between Meals and Before Bed to Promote the Growth and Maintenance of Muscle Mass

What's in Optimum Nutrition Gold Standard 100% Casein

4 Lbs. Banana Cream
Supplement Facts
Serving Size1Rounded Scoop(32g)
Servings Per Container56
Per 32g
Energy 477kJ
114 kcal
Protein 24.4g
Total Carbohydrate 2.9g
Of Which Sugars 1.5g
Total Fat 0.5g
Of Which Saturates 0.2g
Of Which Trans Fat 0g
Dietary Fiber 0.3g
Sodium 177mg
Ingredients:
Micellar Casein* [Contains Emulsifier: Soy Lecithin], Flavor, Thickeners (Cellulose Gum, Carrageenan Gum, Guar Gum), Salt, Color (Curcumin), Acidity Regulator (Malic Acid), Sweetener (Acesulfame Potassium, Sucralose), Enzyme Complex (Amylase, Protease, Cellulase, Beta-D-Galactosidase, Lipase).
*From Milk
ALLERGEN INFORMATION: CONTAINS MILK , SOY

Directions For Gold Standard 100% Casein:

Gold Standard 100% Casein™ is instantised for easy mixing. Simply add 1 rounded scoop (32 g) to 300 ml (10 oz) of cold water and blend, shake or stir until powder is completely dissolved. TIP: You can adjust flavour by using more or less water.

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.

SHAKE UP YOUR SHAKE: By adding a few high-energy ingredients to your shake you can blend up 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 muscle building food supplement.

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 or until powder is dissolved.

SUGGESTED USE: Consume approximately 1 gram of protein per pound of body weight per day through a combination of high protein foods and supplements. For best results, consume your daily protein allotment over several small meals spread evenly throughout the day. TIP: Try using Gold Standard 100% Casein™ with proteins like Gold Standard 100% Whey™ or Pro Complex® at different times for maximum effectiveness. Take Gold Standard 100% Casein™ immediately before bed and in between meals when supplementing your protein is desired. Drink Gold Standard 100% Whey™ or Pro Complex® proteins before and immediately after workouts for a good source of amino acids.

Warnings: Not for use by those with pre-existing medical conditions or those taking any medications, those under the age of 18 or women that are pregnant or breast-feeding. KEEP OUT OF REACH OF CHILDREN. STORE IN A COOL, DRY PLACE.

Ready to Mix Casein Protein Powder with Sweeteners

4 Waterside, Citywest Business Campus, Dublin 24, Ireland

MADE IN THE EU

* 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.
Learn more about Micellar Casein Protein.
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