--- product_id: 3962049 title: "Optimum Nutrition Gold Standard Casein Protein Powder, Peanut Butter, 4 LB" brand: "optimum nutrition" price: "830.37 DT" currency: TND in_stock: true reviews_count: 13 category: "Optimum Nutrition" url: https://www.desertcart.tn/products/3962049-optimum-nutrition-gold-standard-casein-protein-powder-peanut-butter-4 store_origin: TN region: Tunisia --- # Slow-digesting micellar casein 24g protein per serving Delicious Chocolate Peanut Butter flavor Optimum Nutrition Gold Standard Casein Protein Powder, Peanut Butter, 4 LB **Brand:** optimum nutrition **Price:** 830.37 DT **Availability:** ✅ In Stock ## Summary > 🥜💪 Fuel your gains overnight with the ultimate slow-release protein! ## Quick Answers - **What is this?** Optimum Nutrition Gold Standard Casein Protein Powder, Peanut Butter, 4 LB by optimum nutrition - **How much does it cost?** 830.37 DT with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/3962049-optimum-nutrition-gold-standard-casein-protein-powder-peanut-butter-4) ## Best For - optimum nutrition enthusiasts ## Why This Product - Trusted optimum nutrition brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Amino Acid Boost:** 9g of naturally occurring essential amino acids support muscle growth and recovery. - • **Mix & Go Convenience:** Easily blends in a shaker cup—perfect for your on-the-move lifestyle. - • **Power-Packed Protein:** Each serving delivers a hefty 24 grams of premium protein to keep you strong. - • **Sustained Muscle Recovery:** Slow-release micellar casein fuels your muscles overnight for optimal repair. - • **Irresistible Flavor Fusion:** Chocolate Peanut Butter taste that turns your protein shake into a treat. ## Overview Optimum Nutrition Gold Standard Casein Protein Powder offers 24 grams of slow-digesting micellar casein protein per serving, enriched with 9 grams of essential amino acids. Designed to support muscle recovery and keep you full longer, this 4 lb tub delivers 53 servings of a delicious Chocolate Peanut Butter flavor that mixes effortlessly—ideal for pre-bedtime nutrition or between meals. ## Description Optimum Nutrition Gold Standard 100% Micellar Casein Protein Powder helps support muscle recovery. Made with micellar casein, this protein shake powder ensures that you're getting high quality protein with every serving. With nearly 9 grams of naturally occurring Essential Amino Acids per serving, this protein powder drink supports recovery, making it ideal for use between meals and before bedtime. Each serving of this delicious Chocolate Peanut Butter-flavored powder is an excellent source of zinc, magnesium and calcium and provides 24 grams of protein. Optimum Nutrition powder mixes easily using a shaker cup or blended in a smoothie. There are 53 servings in this 3.97 pound container. Gold Standard 100% Casein from Optimum Nutrition, the World's #1 Sports Nutrition Brand.* *Source Euromonitor International Limited; Consumer Health 2023 Edition, Sports Nutrition category, %retail value shares, 2022 data. Review: Great product! ON Casein FTW! - If you're serious about bodybuilding, or at least about gaining muscle and being a regular at the gym, chances are that you've done your research on protein supplements. Whey protein is fast releasing/absorbing. If you are looking for a supplement before bed/meal replacement once in a while, casein might be the way to go. I've been buying this product for about 1.5 years now and I'm totally satisfied with it. Let me break it down a little bit. - It tastes GREAT! Almost like a smoothie. - It mixes well with water, milk, coconut water (lol). - Peanut Butter - Bread sandwich with a Casein shake - Oh lord, it tastes heavenly. - I take Whey protein as well, so I can't really quantify the effectiveness of casein separately, but I can tell you have I have gained considerable muscle overall and have been able to build some strength as well. - Post workout recovery has been quicker, in my opinion, since this is extra protein intake. - It's *slightly* more grainy than ON 100% Whey, but that's okay! I think it's reasonably priced. I'm a huge fan of optimum nutrition and I am a vegetarian. I can use all the protein I can get and I totally don't mind buying casein in addition to 100% Whey. PS: Casein + Plain oats taste great! I used to have oatmeal with Whey but thrown in Casein shake with regular oats, it tastes SO MUCH better, I actually enjoy having oatmeal. Review: Great before bed - I drink this before bed to help with recovery and that extra bit of protein. It taste great and I feel it helps me sleep faster/better. To get it to 100% dissolve, I use room temp water to mix it then refrigerate a few hours before bed. You're left with a creamy and clump-free drink! ## Features - nan - Made in USA - 3.86 lb container (53 servings) of Optimum Nutrition Gold Standard 100% Micellar Casein Protein Powder in Chocolate Peanut Butter - With micellar casein, this Optimum Nutrition protein powder helps support muscle recovery - Each serving has 9 grams of naturally occurring Essential Amino Acids - Feel good about your after-workout recovery drink - Mixes easily with a shaker cup, perfect for packing in your gym bag as part of your training routine ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B002RWJQJK | | Age Range Description | Adult | | Best Sellers Rank | #3,775 in Health & Household ( See Top 100 in Health & Household ) #35 in Sports Nutrition Protein Powder Blends #459 in Sales & Deals | | Brand | Optimum Nutrition | | Brand Name | Optimum Nutrition | | Customer Reviews | 4.6 out of 5 stars 1,152 Reviews | | Flavor | Chocolate Peanut Butter | | Global Trade Identification Number | 00748927026283 | | Item Dimensions | 8.06 x 8.06 x 11.17 inches | | Item Weight | 1.8 kg | | Manufacturer | Optimum Nutrition | | Manufacturer Part Number | 1031642 | | Material Type Free | Sugar Free | | Model Name | Optimum Nutrition Gold Standard 100% Micellar Casein Protein Powder, Slow Digesting, Helps Keep You Full | | Model Number | 1031642 | | Number of Items | 1 | | Package Type Name | Tub | | Protein | 24 g | | Protein Source | Casein, Whey | | Recommended Uses For Product | Fitness | | UPC | 748927026283 748927066302 | | Unit Count | 64 Ounce | | Vitamins And Minerals | 0, 0, 15, 240, 240.0, 4, 50 percent_daily_value_fda, 240 milligrams | ## Product Details - **Brand:** Optimum Nutrition - **Flavor:** Chocolate Peanut Butter - **Item Weight:** 1.8 kg - **Material Type Free:** Sugar Free - **Protein Source:** Casein, Whey ## Images ![Optimum Nutrition Gold Standard Casein Protein Powder, Peanut Butter, 4 LB - Image 1](https://m.media-amazon.com/images/I/71SXDyvOp1L.jpg) ![Optimum Nutrition Gold Standard Casein Protein Powder, Peanut Butter, 4 LB - Image 2](https://m.media-amazon.com/images/I/81yCQDc6YFL.jpg) ![Optimum Nutrition Gold Standard Casein Protein Powder, Peanut Butter, 4 LB - Image 3](https://m.media-amazon.com/images/I/81v0LG7tgjL.jpg) ![Optimum Nutrition Gold Standard Casein Protein Powder, Peanut Butter, 4 LB - Image 4](https://m.media-amazon.com/images/I/81jnwdwy6bL.jpg) ![Optimum Nutrition Gold Standard Casein Protein Powder, Peanut Butter, 4 LB - Image 5](https://m.media-amazon.com/images/I/81xzoqg2EaL.jpg) ## Available Options This product comes in different **Size, Flavor** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great product! ON Casein FTW! *by S***M on May 25, 2016* If you're serious about bodybuilding, or at least about gaining muscle and being a regular at the gym, chances are that you've done your research on protein supplements. Whey protein is fast releasing/absorbing. If you are looking for a supplement before bed/meal replacement once in a while, casein might be the way to go. I've been buying this product for about 1.5 years now and I'm totally satisfied with it. Let me break it down a little bit. - It tastes GREAT! Almost like a smoothie. - It mixes well with water, milk, coconut water (lol). - Peanut Butter - Bread sandwich with a Casein shake - Oh lord, it tastes heavenly. - I take Whey protein as well, so I can't really quantify the effectiveness of casein separately, but I can tell you have I have gained considerable muscle overall and have been able to build some strength as well. - Post workout recovery has been quicker, in my opinion, since this is extra protein intake. - It's *slightly* more grainy than ON 100% Whey, but that's okay! I think it's reasonably priced. I'm a huge fan of optimum nutrition and I am a vegetarian. I can use all the protein I can get and I totally don't mind buying casein in addition to 100% Whey. PS: Casein + Plain oats taste great! I used to have oatmeal with Whey but thrown in Casein shake with regular oats, it tastes SO MUCH better, I actually enjoy having oatmeal. ### ⭐⭐⭐⭐⭐ Great before bed *by B***C on December 3, 2025* I drink this before bed to help with recovery and that extra bit of protein. It taste great and I feel it helps me sleep faster/better. To get it to 100% dissolve, I use room temp water to mix it then refrigerate a few hours before bed. You're left with a creamy and clump-free drink! ### ⭐⭐⭐⭐⭐ Peanut Butter flavor gave me faith in this Casein again! *by L***N on December 14, 2019* I had previously tried the cookies and cream casein and it was very subpar. Then I decided to try peanut butter. Delicious! I gave it another try because the casein works really well. I wake up much less sore and it has great macros. It mixes well, but in my experience it will start to stick to the edges of my cup when I leave it in the fridge for a few hours. Not really a deal breaker. Just something to note. I usually like my protein with milk, but this honestly tastes better with water. The flavor doesn’t need any support because it’s already good on its own. ## Frequently Bought Together - Optimum Nutrition Gold Standard 100% Micellar Casein Protein Powder, Slow Digesting, Helps Keep You Full, Overnight Muscle Recovery, Chocolate Peanut Butter, 4 Pound (Packaging May Vary) - Optimum Nutrition Gold Standard 100% Whey Protein Powder, Vanilla Ice Cream, 5 Pound (Packaging May Vary) - Optimum Nutrition Micronized Creatine Monohydrate Powder, Unflavored, 120 Servings, 600 Grams (Packaging May Vary) --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.tn/products/3962049-optimum-nutrition-gold-standard-casein-protein-powder-peanut-butter-4](https://www.desertcart.tn/products/3962049-optimum-nutrition-gold-standard-casein-protein-powder-peanut-butter-4) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-08-14*