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  • Slow-Digesting Protein for Overnight Muscle Recovery
  • 24 Grams of Protein Per Serving Helps Build & Maintain Muscle³
  • 4.9 Grams of Naturally Occurring BCAAs to Support Recovery
  • 4.8 Grams of Naturally Occurring Glutamic Acid

Product Overview

Slow-Digesting Protein for Overnight Muscle Recovery

Casein, a slower digesting and absorbing protein, compared to whey, may be used after exercise, between meals, or before bed to help support satiety and muscle recovery. GOLD STANDARD 100% CASEIN™ can deliver BCAAs to recovering muscles for several hours. By using only premium micellar casein with our high standards —and no artificial flavors, sweeteners or colors— as a protein source, we’ve created a protein powder that sets the GOLD STANDARD® for slow digesting protein support.


  • 24 Grams of Protein Per Serving Helps Build & Maintain Muscle³
  • 4.9 Grams of Naturally Occurring BCAAs to Support Recovery
  • 4.8 Grams of Naturally Occurring Glutamic Acid
  • Ideal for Use Between Meals or Before Bed
  • No Artificial Flavors, Sweeteners or Colors
  • Banned Substance Tested
  • 40% of the Daily Value for Calcium
  • 130 Calories per Serving
  • 0.5 - 1 Gram of Fat Per Serving

Suggested Use

Mix a scoop of the powder 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.

Nutritional Information

Nutritional information will be shown when a flavour and/or size is selected.

Customer Reviews

Overall Rating (4.7)
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Love this product

Review by Matt on May 13, 2022
The perfect protein to take at night. It's easy to digest and tastes great.

Best casein on the market

Review by Anonymous on May 6, 2022
Easy to digest. Best to shake with water.

Good product

Review by Anonymous on Apr 28, 2022
Good product for trying to keep lean and gaining muscle

Not what I was looking for

Review by Anonymous on Feb 28, 2022
I tried to order the normal casein and got 4lbs of this naturally flavored stuff. Ive been using ON for >10 years and I honestly can't stand this stuff. Send me the artificial flavors please!

Super yummy

Review by Jerry on Jan 24, 2022
Super yummy! I can drink it everyday.

I recommend this product.

Review by Geremy Freeman on Dec 2, 2021
It tastes good, has no artificial anything, and is priced reasonably for a premium brand.


Review by Dali on Sep 23, 2021
Good stuff

Natural Chocolate Flavor is Really Bitter

Review by AV on Aug 31, 2021
The natural chocolate flavor is really bitter, and the peanut butter flavor is not at all tasty and is pretty gummy. The creamy chocolate one is better, good even, on all counts.

Tastes really good

Review by Anonymous on Aug 17, 2021
Mixes really well. I enjoy the taste of it

Casein protein

Review by David on Jun 4, 2021
Great product and just as advertised. Tastes great, too! Love it

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