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Optimum Nutrition Gold Standard 100% Micellar Casein

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9.6
Expert ScoreRead review

Original price was: $91.99.Current price is: $83.94.

Price: $91.99 - $83.94
(as of May 20, 2025 05:00:46 UTC – Details)

Optimum Nutrition's Gold Standard 100% Micellar Casein (Chocolate Supreme, 4lb) is a slow-digesting protein powder designed for sustained muscle recovery, especially overnight. Each serving delivers 24g of high-quality micellar casein, nearly 9g of EAAs, and is an excellent source of zinc, magnesium, and calcium. Ideal between meals or before bed, it helps keep you feeling full and supports muscle repair. This easily mixable powder, from the world's #1 sports nutrition brand, offers 53 servings. Note: This specific product version is discontinued by the manufacturer, so check current availability.

Product Details:

  • Product Name: Optimum Nutrition Gold Standard 100% Micellar Casein Protein Powder
  • Flavor: Chocolate Supreme
  • Size: 4 Pound (3.86 – 3.97 lbs, 53 servings)
  • Protein per serving: 24g
  • EAAs per serving: ~9g (naturally occurring)
  • Key Nutrients: Excellent source of Zinc, Magnesium, Calcium
  • Primary Ingredient: Micellar Casein
  • Manufacturer: Optimum Nutrition
  • ASIN: B002DYJ0M0
  • Country of Origin: USA
  • Dimensions: 8.06 x 8.06 x 11.17 inches
  • Status: Is Discontinued By Manufacturer: Yes
  • Advantages:
  • Slow Digesting: Micellar casein provides a sustained release of amino acids, ideal for periods without food, like overnight or between meals.
  • Muscle Recovery Support: Delivers 24g of protein and nearly 9g of EAAs per serving to aid in muscle repair and growth.
  • Satiety: Helps keep you feeling full, which can be beneficial for managing hunger.
  • Nutrient-Rich: An excellent source of essential minerals zinc, magnesium, and calcium.
  • Easy to Mix: Designed to mix easily with a shaker cup or in a smoothie.
  • Reputable Brand: From Optimum Nutrition, a well-known and trusted name in sports nutrition.

Our Recommendations:
This protein powder is best suited for individuals looking for a slow-release protein to support muscle recovery during extended periods without food, such as overnight or between meals. It's also beneficial for those aiming to increase satiety. Given its “discontinued by manufacturer” status, if you find it, it's a product with a good reputation. However, be prepared to explore Optimum Nutrition's current casein offerings or similar products from other brands if this specific version is unavailable.

Conclusion:
Optimum Nutrition Gold Standard 100% Micellar Casein in Chocolate Supreme has been a quality choice for sustained protein release, effectively supporting overnight recovery and satiety with its rich protein and EAA profile. Its formulation by a leading brand adds to its appeal. However, the critical factor is its “discontinued by manufacturer” status, which severely impacts future availability. While an excellent product for its intended purpose, consumers will likely need to seek current alternatives from Optimum Nutrition or other brands.

 

9.6Expert Score
Optimum Nutrition Gold Standard 100% Micellar Casein Protein Powder, Slow Digesting, Helps Keep You Full, Overnight Muscle Recovery, Chocolate Supreme, 4 Pound (Packaging May Vary)
PROS
9.3
CONS
1.4
PROS
  • Excellent for overnight muscle recovery due to slow-digesting micellar casein.
  • High protein (24g) and EAA (~9g) content per serving supports muscle building.
  • Contributes to satiety, helping manage hunger between meals.
  • Good source of essential minerals: zinc, magnesium, and calcium.
  • Produced by Optimum Nutrition, the World's #1 Sports Nutrition Brand.
CONS
  • Discontinued by Manufacturer: Availability is limited and will eventually cease.
  • Chocolate Supreme flavor may not appeal to all users.
  • "Packaging May Vary" could lead to receiving an older or different look than expected

13 reviews for Optimum Nutrition Gold Standard 100% Micellar Casein

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  1. Alan

    My favorite protein so far! No aftertaste!
    I wish I got this sooner!It’s easy to mix, there’s no aftertaste.It doesn’t have that fake sweetener or Splenda after taste that I hate so much.It does It’s job and helps maintain my weight.

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  2. John A. Rodriguez

    Great product! Great customer service!
    I’ve ordered this product several times and love it. This last time they sent the wrong flavor but customer service quickly responded and resolved the issue. I will gladly continue doing business with them.

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  3. B

    Favorite Protein Powder – Holes Poked in Heat Seal
    This has become a daily staple to get extra protein in. It’s great to have before bed, and helps me stay full. I often find protein powders to taste sickly sweet, and can’t stand the artificial sweetener aftertaste, but I find the chocolate flavor tastes just right. I also don’t get the upset stomach that I typically get with whey proteins.This tends to be a thicker consistency, and can have a bit of the powder texture remaining. My favorite way to make this is with one cup of nonfat fit milk (14g protein) and 3/4 of a scoop of protein powder. I’ve found putting the powder in the shaker after the liquid leaves less clumps, and letting it rest for about 30 seconds and shaking one more time helps even further.You may want to know: the heat seal on the container I received had several pin holes poked in it (as shown in photo). I contacted their customer service with concerns the product had been tampered with, and found this is a shipping practice of theirs to allow for pressure changes during air transport.

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  4. Madhuri Caty

    Best Vanilla Taste + Fullness Achieved
    I ordered the vanilla one because I read about how tasty it was. So true! This is the tastiest, creamiest vanilla protein powder I’ve ever had. I am thinking of making a healthy ice cream with this one :)After about 30-45 minutes of having it, I started feeling super full. I definitely feel the slow absorption which is great for feeling full for a long time.

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  5. Rafael

    Buen producto
    Buen producto

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  6. Zoe B.

    Functionality and flavor are both good
    I have specific health needs that require a high-protein, low-calorie diet, and this protein powder works perfectly as a breakfast meal replacement. I typically mix one scoop with 12 oz of 2% Fairlife milk and 8 oz of cold brew, which totals around 40 grams of protein. On its own, it provides 22 grams of protein per serving, making it easy to use multiple times a day to meet macro goals, even with just water.The flavor isn’t too sweet, and it adds a nice richness without a chalky texture. It also keeps me full from breakfast until my 1:00 PM lunch, even when I start my workday at 8:30 AM.For best results, I recommend using a good mixer bottle. My favorite is the Helimix 22 oz. That said, the powder dissolves well and doesn’t clump, making it easy to mix.Overall, this is a great choice for anyone looking to add quality protein to their diet without unnecessary calories or unpleasant textures.

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  7. Kelley Carlson

    Awesome casein protein!
    Better than cottage cheese everynight for a casein! Lol.

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  8. Trevor K Smith

    Slow-digesting casein protein for overnight recovery, supporting muscle growth and keeping you full
    **Product Overview:**Optimum Nutrition’s Gold Standard 100% Micellar Casein Protein Powder is a top choice for anyone looking for slow-release protein to support muscle recovery, particularly during the night or between meals. Each 33-34g serving provides 24g of micellar casein protein, derived from milk, which digests more slowly than whey protein, making it ideal for sustained protein absorption over several hours.**Key Features:**- **24g of protein per serving:** Helps with muscle recovery and growth while you sleep or between meals.- **9g of essential amino acids (EAAs):** These are critical for muscle repair, ensuring your body is ready for the next workout.- **Low fat and sugar:** With only 1g of fat and 1-2g of sugar per serving, this product supports a balanced, high-protein diet.- **Micellar casein blend:** Designed to mix easily with water or milk, offering flexibility depending on your texture preference.- **Magnesium and Zinc:** Contributes to muscle relaxation and overall recovery.**Flavor and Texture:**The Chocolate Supreme flavor offers a rich, satisfying taste without being overly sweet. The powder mixes smoothly in a shaker or blender, ensuring convenience, especially when on the go.**When to Use:**Recommended 30-60 minutes before bed or between meals for best results. It’s ideal for anyone from fitness enthusiasts to professional athletes seeking long-lasting protein support.**Conclusion:**Optimum Nutrition’s Gold Standard Casein is a premium choice for those needing extended protein release. It fits seamlessly into a performance-driven lifestyle by helping keep you full and supporting muscle recovery during downtime.

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  9. Mr.Tech

    Good

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  10. Cliente Amazon

    First time I open the lid of an Option Nutrition product and didn’t find a seal.

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  11. LF

    Would not recommend cookies and cream flavour, it’s filled with cookie chunks which don’t dissolve in water.It might be good if you incorporate it into your cooking eg some pastries, but you would be better off with chocolate/vanilla flavours if you just want a shake to mix with water/milk.

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  12. L’ignorant

    C’est une caséine micellaire. C’est bien ce que je cherchais. On ne sait malheureusement pas d’où viennent les matières premières, ce qui est le cas d’une bonne partie des produits de ce type.Ceci dit elle est très digeste, ce qui est un excellent point, étant donné que ce n’est pas forcément gagné d’avance. Vous verrez beaucoup de gens devenir “intolérants” aux protéines laitières, plus à mon avis qu’avec les produits dont on disposait il y a vingt ou trente ans, qui étaient pourtant théoriquement moins “high tech” (mais étaient souvent majoritairement constitués de caséines, justement et non de whey comme aujourd’hui).La cerise sur le gâteau c’est que c’est une protéine vanille avec une texture crémeuse, un goût pas trop chimique et que ça donne quelque chose de très agréable à consommer aussi bien sous une forme plutôt liquide ou sous forme de crème (avec tous les intermédiaires possibles). Elle me semble d’ailleurs meilleure sous cette forme, et c’est là qu’on est heureux qu’ON n’ait pas eu la main trop lourde sur les édulcorants.C’est mon goût, je sais que certains ont du mal avec la texture des caséines, mais j’avoue ne pas bien comprendre pourquoi.La vanille, il faut le rappeler est le parfum le plus versatile : on peut faire des milk shakes aux fruits rouges, ou à la banane, selon les goûts. Le parfum est présent mais s’efface devant à peu près tout ce qu’on peut mélanger avec. C’est pratique.Le chocolat n’est pas extraordinaire, mais reste buvable. J’ai testé un mélange avec la whey ON vanille et la caséine chocolat, c’est sympa, plus que le chocolat seul donc.Une protéine pratique, facile à consommer et peu agressive sur les intestins (en tout cas pour moi) plus que d’autres, en tout cas. On augmente bien sa consommation de protéines avec sans problème(s). Mélangeable avec une whey pour avoir une protéine “à l’ancienne” mixte après l’entraînement ou le matin. En collation avant l’entraînement (1h environ) semble aider à maintenir un bon niveau d’énergie, même au régime, plus efficace à mon sens que des BCAA pour ce genre de chose et aussi efficace qu’un mélange peptopro / maltodextrine, les calories en moins. Bonne protéine de régime donc, comme de prise de poids, sans doute.Je recommande. Bon produit à tous points de vue.

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  13. Sahar Ghazeydi

    Its a little heavier than whey protein, so it makes me to eat less with high protein that this product provides

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