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GOLD STANDARD 100% CASEIN – Premium Micellar Casein Protein – Creamy Vanilla (2 lbs./27 Servings)

GOLD STANDARD 100% CASEIN – Premium Micellar Casein Protein – Creamy Vanilla (2 lbs./27 Servings)

$62.99
($2.33/serving)

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GOLD STANDARD 100% CASEIN – Premium Micellar Casein Protein – Creamy Vanilla (2 lbs./27 Servings)

Rated 4.4 out of 5
136 Reviews|10 Questions | 120 Answers|
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      $62.99
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      • Creamy Vanilla
      • Chocolate Supreme
      • 2 pound Powder$62.99
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      Optimum Nutrition
      GOLD STANDARD 100% CASEIN – Premium Micellar Casein Protein – Creamy Vanilla (2 lbs./27 Servings)
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      Slide 1 of 3

      Product Info

      About This Product

      • Supports muscle recovery
      • 24g of protein & 9g EAAs per serving
      • Slow-digesting
      • Creamy Vanilla flavor

      Fuel your goals even as you sleep with GOLD STANDARD® 100% CASEIN™ by Optimum Nutrition. This slow-digesting formula delivers 24g of premium micellar casein, plus 9g of EAAs to refuel recovering muscles when your body goes for hours without food—like at bedtime.

      Frequently Asked Questions

      What is micellar casein protein?

      Micellar casein is a milk protein that is digested more slowly than other proteins, providing an extended release of muscle-building amino acids that help prevent catabolism.

      What is catabolism?  

      Catabolism is the breakdown of protein. When your body goes for extended periods without food, or when it’s under significant metabolic stress during exercise, it can resort to catabolizing your muscles for energy.

      Read More

      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 oz of your preferred beverage. Cover and shake for 25-30 seconds.

      Warning

      Allergen information: This product contains milk and soy (lecithin) ingredients. Store in a cool, dry place. Contents sold by weight not volume.

      Updated Jan 15, 2026
      Read More

      Supplement Facts

      Serving Size: 1 Scoop
      Number of Servings: 27 Servings
      Amount Per Serving
      % Daily Value
      Calories   
      120 
      N/A*
      Calories From Fat   
      10 
      N/A*
      Total Fat   
      1 GM
      2%
      Saturated Fat   
      0.5 GM
      3%
      Cholesterol   
      15 MG
      5%
      Sodium   
      240 MG
      10%
      Total Carbohydrate   
      3 GM
      1%
      Dietary Fiber   
      1 GM
      4%
      Sugars   
      1 GM
      N/A*
      Protein   
      24 GM
      46%
      Vitamin A   
      0 
      N/A*
      Vitamin C   
      0 
      N/A*
      Calcium   
      0 
      50%
      Iron   
      0 
      N/A*

      Other Ingredients:

      Micellar Casein, Natural and Artificial Flavors, Inulin, Salt, Gum Blend (Cellulose Gum, Xanthan Gum, Carrageenan), Lecithin, Sucralose, Aminogen, FD&C Yellow #5.

      How Do You Read A Supplement Facts Label?

      Specifications

      Brand:
      Optimum Nutrition
      Form:
      Powder
      Flavor:
      Creamy Vanilla
      Serving Size:
      1 Scoop
      Number of Servings:
      27 Servings
      Price per Serving:
      ($2.33 / serving)
      Product Weight:
      39  OZ
      Item # :
      OP-2037 / 1619758

      Product Reviews
         (136)

      Disclaimer:

      Product reviews are provided for informational purposes only and reflect solely the views and opinions expressed by the contributors and not those of the Vitamin Shoppe. Vitamin Shoppe does not verify or endorse any claims made in these reviews.Please read the full product reviews disclaimer.

      136 Ratings
      4.4out of 5 stars
      136 Ratings

      Rated 5 stars by 65% of reviewers

      565%

      Rated 4 stars by 21% of reviewers

      421%

      Rated 3 stars by 5% of reviewers

      35%

      Rated 2 stars by 4% of reviewers

      24%

      Rated 1 star by 4% of reviewers

      14%
      1-10 of 136 Reviews
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      Customers talk about
      AI analysis found these key themes mentioned in reviews.
      Dec 7, 2025
      Rated 1 out of 5
      Bad service
      I signed up for the mailing list because they offered a discount coupon for doing so. I ordered this product to pick up at my local store which had it in stock. After placing the order the store proceeded to cancel my order. I tried to reorder the item for delivery but the coupon has "already been used." I will unsubscribe and shop somewhere else.
      Zachary LVerified Purchaser
      Location
      Houston, TX, US
      Gender
      Male
      Age Range
      35-44
      Fitness Level
      Advanced
      Purchased on Nov 15, 2025
      Was this helpful?
      Review by Zachary L has been flagged
      Flag
      Jul 9, 2025
      Rated 5 out of 5
      Casein
      Tastes great. No gritty
      bob wVerified Purchaser
      Location
      Milford, CT, US
      Gender
      Male
      Age Range
      45-54
      Would you recommend?:Yes
      Purchased on Jun 17, 2025
      Was this helpful?
      Review by bob w has been flagged
      Flag
      Sep 16, 2024
      Rated 4 out of 5
      good
      good
      Nicole SVerified Purchaser
      Location
      Los Angeles, CA, US
      Purchased on Mar 12, 2021
      Was this helpful?
      Review by Nicole S has been flagged
      Flag
      Aug 30, 2023
      Rated 5 out of 5
      Solid
      Been taking this casein for a few years (took a break going into college) and it does the job. I've seen muscle gain and weight loss consistently while taking it. It's a little hard to get down when you start but that's the norm with these powders. Tastes solid enough too.
      Tyler C
      Location
      Yorktown Heights, NY, US
      Gender
      Male
      Age Range
      18-24
      Fitness Level
      Intermediate
      Would you recommend?:Yes
      Was this helpful?
      Review by Tyler C has been flagged
      Flag
      Jun 20, 2023
      Rated 5 out of 5
      Awesome
      I love this protein powder. It tastes great!
      Adelaide KVerified Purchaser
      Location
      Charlotte, NC, US
      Gender
      Female
      Age Range
      35-44
      Fitness Level
      Beginner
      Would you recommend?:Yes
      Purchased on Apr 29, 2022
      Was this helpful?
      Review by Adelaide K has been flagged
      Flag
      Apr 18, 2023
      Rated 5 out of 5
      Very impressed
      I wasn't sure what to expect because I usually only buy whey protein. This is delicious. I'm very happy to say that it exceeded my expectations and will buy again regularly.
      Donald CVerified Purchaser
      Purchased on Mar 18, 2023
      Was this helpful?
      Review by Donald C has been flagged
      Flag
      Feb 16, 2023
      Rated 5 out of 5
      Great protein to take at night.
      Tastes great!
      Paul GVerified Purchaser
      Location
      Lawrenceville, NJ, US
      Gender
      Male
      Age Range
      45-54
      Fitness Level
      Advanced
      Would you recommend?:Yes
      Purchased on Jan 4, 2023
      Was this helpful?
      Review by Paul G has been flagged
      Flag
      Apr 12, 2021
      Rated 5 out of 5
      Great product
      Great taste and great protein ?
      Adriana RVerified Purchaser
      Location
      Waco, TX, US
      Gender
      Female
      Age Range
      55-64
      Would you recommend?:Yes
      Purchased on Mar 4, 2021
      Was this helpful?
      Review by Adriana R has been flagged
      Flag
      Apr 6, 2021
      Rated 5 out of 5
      Thumbs up
      Very delicious and easy to mix.
      JAVIER MVerified Purchaser
      Location
      Modesto , CA, US
      Gender
      Male
      Age Range
      35-44
      Would you recommend?:Yes
      Purchased on Jan 28, 2021
      Was this helpful?
      Review by JAVIER M has been flagged
      Flag
      Feb 5, 2021
      Rated 3 out of 5
      Casein review
      I don't love the flavor. It's just ok.
      Kylie M.Verified Purchaser
      Location
      Alexandria, VA, US
      Gender
      Female
      Age Range
      35-44
      Would you recommend?:No
      Purchased on Dec 16, 2020
      Was this helpful?
      Review by Kylie M. has been flagged
      Flag
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      Disclaimer:

      Product reviews are provided for informational purposes only and reflect solely the views and opinions expressed by the contributors and not those of the Vitamin Shoppe. Vitamin Shoppe does not verify or endorse any claims made in these reviews.Please read the full product reviews disclaimer.

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      3 Questions
      Why did you choose this?
      The Vitamin ShoppeStore

      best casein

      Neelima GAug 15, 2026

      Research

      Robert KJun 3, 2026

      I’ve always used this brand for casein

      ANTHONY XMar 25, 2026

      You can drink casein protein before bed. This is helpful for me due to my work schedule.

      Ruth RFeb 23, 2026
      How many ounces is the container?
      A shopperDec 24, 2025
      Has anyone with Diabetes Type 1 used this? Any problems with it and what has been you success?
      Marcie AOct 27, 2013
      Questions for Similar Products
      Does this contain soy, gluten or wheat ?
      Gold Standard 100% Casein
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      Gold Standard 100% Casein
      wildy pMar 18, 2014
      Is this Gluten Free?
      Gold Standard 100% Casein
      About
      Gold Standard 100% Casein
      Natalie GMay 16, 2016

        Sorry, can't really say.

      Jacqueline GMay 17, 2016purchased Feb 21, 2015
      Reply
      Inaccurate
      Answer by Jacqueline G has been flagged

      Vote for the best answer above!

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      Product reviews are provided for informational purposes only and reflect solely the views and opinions expressed by the contributors and not those of the Vitamin Shoppe. Vitamin Shoppe does not verify or endorse any claims made in these reviews.Please read the full product reviews disclaimer.

      Shipping Info

       

      FREE STANDARD SHIPPING on orders of $45 or more

      How to get FREE Standard Shipping:

      1. Ship to an address within the United States (including U.S. territories)
      2. Place your online order of $45 or more* - after promotions and before tax are applied
      3. Use "Standard" shipping option at checkout

      Orders will be shipped within 24 hours of order placement*, pending verification of billing information and shipping method selected. International orders and orders containing gift cards or items that are not currently in stock will be processed as quickly as possible.

       

      *Excludes all orders placed on major US holidays (Memorial Day, Independence Day, Labor Day, Thanksgiving Day, Christmas Day and New Year's Day).

       

      Orders for states outside of the continental U.S. (including those of $45 or more) may be subject to a delivery surcharge. This will be noted in the order summary based on your shipping address at checkout.

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      About Optimum Nutrition

      Optimum NUTRITION has been trusted to provide the highest quality in post-workout recovery, pre-workout energy, and on-the-go sports nutrition products for over 35 years and in more than 100 countries. We are obsessed with quality. We sweat the details, scrutinizing every ingredient in every product that we make. We hold ourselves to the highest production standard, all so you can unlock your body’s full potential.

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      BrandOptimum Nutrition
      HomeProtein & FitnessGOALSAnytime Protein & FitnessGOLD STANDARD 100% CASEIN – Premium Micellar Casein Protein – Creamy Vanilla (2 lbs./27 Servings)

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