Optimum Nutrition Gold Standard 100% Casein Protein Powder, Vanilla, 24g Protein, 2 Lb
Optimum Nutrition Gold Standard 100% Casein Protein Powder, Vanilla, 24g Protein, 2 Lb
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Optimum Nutrition Gold Standard 100% Casein Protein Powder, Vanilla, 24g Protein, 2 Lb

Optimum Nutrition Gold Standard 100% Casein Protein Powder, Vanilla, 24g Protein, 2 LbOptimum Nutrition Gold Standard 100 Casein Drink Mix Creamy Vanilla 1 81 lb 25 ServingsOptimum Nutrition Gold Standard 100 Casein 24 g Protein Powder Chocolate Supreme 1 87 lb 25 Servings
Flavor:Creamy Vanilla
Size:2 lbs

Key item features

24g of Anti-Catabolic Micellar Casein, Nearly 5 Grams of Naturally Occurring BCAAs per Scoop, and Nearly 5 Grams of Naturally Occurring Glutamine and Glutamic Acid per Scoop
Current price is $49.99$25.00/lb
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Arrives by Mon, Jun 22
Sold by PatternPro Seller
Fulfilled by Walmart
4.681348679356647 stars out of 5, based on 13595 seller reviews(4.7)
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Customer ratings & reviews

4.6 out of 5 stars
stars154 ratings98 reviews
How item rating is calculated
4.4
5.0
3.2
3.0
  1. 5 stars77% (119)
  2. 4 stars14% (21)
  3. 3 stars2% (3)
  4. 2 stars3% (4)
  5. 1 star5% (7)

Reviews summary

Pros

  • : Has various flavor options.
  • : Used as part of a pre-sleep routine.

Neutral

  • : Can be affordable, but also steep for certain users.
  • : Can be smooth, but may require extra effort or tools.
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Showing 1-3 of 98 reviews

Nov 15, 2025
Ario
5 out of 5 stars review

Seller Verified Purchase

Casein

Years ago when I was living in Turkey, I always liked this brand. Even though Optimum was way more expensive than other supplements, I still tried to buy it because it was my favorite. But unfortunately, not all of their products were available in Turkey. Now that I live in the U.S., I'm always an Optimum customer. After using it for so many years, I know they make the best and most effective sports supplements. ā€” From a long-time loyal customer.

Review from optimumnutrition.com
Helpful?4S5ENHUZE3PI164049574
Mar 8, 2026
Roni
Top Reviewer
Item details
Flavor: Creamy Vanilla
Size: 2 lbs
Sold byPatternDelivered byWalmart
5 out of 5 stars review

Verified Purchase

Cancer survivor

I used to substitute for some meals and going through chemo and it helped greatly because I could keep the weight on on. I was losing weight all the time because I couldn't eat

Helpful?4S5ENHUZE3PI164049574
Aug 28, 2025
Charles
Item details
Flavor: Creamy Vanilla
Size: 2 lbs
Sold and shipped byiHerb
5 out of 5 stars review

Verified Purchase

Slow Burn, Big Gains šŸ”„

This casein protein is my go-to for overnight recovery. Smooth texture, no chalky drama, and it keeps my muscles fed while I sleep. Whether I'm deep in prep or just keeping it tight, it's the kind of clean, slow-digesting fuel that actually works. Plus, there's no bloating and no weird additives šŸ’ŖšŸ½ just solid results and a shake I actually look forward to.

Helpful?4S5ENHUZE3PI164049574