--- product_id: 702109646 title: "Gold Standard Casein Slow Digesting Protein Powder with Zinc,Magnesium and Naturally Occurring Glutamine and Amino Acids,Chocolate Supreme,28 Servings,0.92 kg,Packaging May Vary" brand: "optimum nutrition" price: "AR$441521" currency: ARS in_stock: true reviews_count: 13 url: https://www.desertcart.com.ar/products/702109646-gold-standard-casein-slow-digesting-protein-powder-with-zinc-magnesium store_origin: AR region: Argentina --- # 24g slow-digesting micellar casein 10g essential amino acids per serving Zinc & magnesium for immune & protein synthesis support Gold Standard Casein Slow Digesting Protein Powder with Zinc,Magnesium and Naturally Occurring Glutamine and Amino Acids,Chocolate Supreme,28 Servings,0.92 kg,Packaging May Vary **Brand:** optimum nutrition **Price:** AR$441521 **Availability:** ✅ In Stock ## Summary > ⏳💪 Sleep on gains, wake up stronger! ## Quick Answers - **What is this?** Gold Standard Casein Slow Digesting Protein Powder with Zinc,Magnesium and Naturally Occurring Glutamine and Amino Acids,Chocolate Supreme,28 Servings,0.92 kg,Packaging May Vary by optimum nutrition - **How much does it cost?** AR$441521 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.com.ar](https://www.desertcart.com.ar/products/702109646-gold-standard-casein-slow-digesting-protein-powder-with-zinc-magnesium) ## 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 - • **Trusted Quality:** From Optimum Nutrition, crafted in the UK, designed for serious fitness enthusiasts - • **Smooth & Convenient:** Easy-to-mix powder with a rich Chocolate Supreme flavor for a delicious nightly ritual - • **Essential Amino Power:** 10g of naturally occurring essential amino acids to maximize muscle repair and growth - • **Overnight Muscle Fuel:** Sustained 24g micellar casein delivers a steady amino acid flow while you sleep - • **Immune & Recovery Boost:** Fortified with zinc and magnesium to support immune health and protein synthesis ## Overview Optimum Nutrition Gold Standard Casein is a premium slow-digesting protein powder delivering 24g of micellar casein and 10g of essential amino acids per serving. Fortified with zinc and magnesium, it supports immune health and protein synthesis, making it ideal for overnight muscle repair and growth. Available in a smooth Chocolate Supreme flavor, this 28-serving pack is designed for fitness-focused professionals seeking sustained recovery and muscle maintenance. ## Description Product Description Meet Optimum Nutrition Gold Standard 100% Casein, a slow-digesting protein powder for overnight muscle support and repair*.This ready-to-mix powder supports your daily protein intake with 24g protein per serve and provides your body with a slow and steady release of amino acids. Gold Standard 100% Casein protein powder also contains zinc, which contributes to a healthy immune systems and magnesium to support normal protein synthesis. Each serving contains 24 g of premium micellar casein, which provides a sustained supply of amino acids overnight and helps support your muscles before and after high-intensity workouts. This protein powder delivers 10 g of essential amino acids per serving. This convenient protein powder –would be a great addition to an active and healthy lifestyle. Choose between four great tasting options: Chocolate Supreme, Cookies & Cream, Creamy Vanilla, or Strawberry Delight. Thanks to its smooth texture, this protein powder is easy and convenient to prepare. For a tasty and smooth protein shake , add 1 heaped scoop to 300-360 ml of cold water and stir, shake or blend until dissolved. *Protein contributes to the growth and maintenance of muscle mass. To be used in the framework of a varied and balanced diet and healthy lifestyle. Source: Official Journal of the European Union - COMMISSION REGULATION (EU) No 432/2012 Ingredients INGREDIENTS: Micellar CASEIN (88%) [MILK] (Emulsifier: Sunflower Lecithin), Fat- Reduced Cocoa Powder, Flavourings, Sodium Chloride, Stabiliser (Sodium Carboxy Methyl Cellulose), Magnesium Oxide, Sweeteners (Sucralose, Acesulfame K), Zinc Oxide. FOR ALLERGENS SEE INGREDIENTS CAPITALISED AND BOLD. May Contain: Gluten, Egg, Soy, Nuts and Peanuts. P.when('A').execute(function(A) { A.on('a:expander:toggle_description:toggle:collapse', function(data) { window.scroll(0, data.expander.$expander[0].offsetTop-100); }); }); Directions Add one heaped scoop of Gold Standard 100% Casein with 300 to 350 ml (10 to 12 oz) of water or prefered beverage. Use ON 100% Casein Protein first thing in the morning, immediately before bed, in place of small meals, and/or any other time when delayed protein absorption is desired. To encourage a positive nitrogen balance, consume approximately one gram of protein per pound of body weight per day from a combination of high protein foods and supplements. For even better results, consume your daily protein allotment over several small meals spread evenly throughout the day. Safety Warning Store in a dry, cool place. Do not exceed recommended daily dose. Keep out of reach of children. Legal Disclaimer Should not be used as a substitute for a varied diet. Do not exceed stated recommended daily dose. Keep out of reach of young children. Storage: always reseal after use, keep in a cool dry place Manufacturer Contact Information OPTIMUM NUTRITION 4 Waterside, Citywest Business Campus, Dublin 24, Ireland Glanbia Nutritionals UK Ltd: One Victoria Square Birmingham B1 1BD gpncustcare@glanbia.com www.optimumnutrition.com/recycle See more ## Features - SLOW-DIGESTING PROTEIN powder FORTIFIED with zinc which contributes to a healthy immune system and magnesium to support normal protein synthesis - The ready-to-mix powder provides a source of slow digesting protein to support muscle growth and repair* - Each serving contains 24 g of premium micellar casein protein that provides your body with a slow and steady FLOW OF AMINO ACIDS OVERNIGHT - This protein powder contains 10 g of naturally occurring essential amino acids with low sugar in each serving - A PROTEIN source for athletes & fitness enthusiasts; to enjoy, add 1 heaped scoop to 300 ml of cold water and stir, shake or blend until dissolved - *Protein contributes to the growth and maintenance of muscle mass. To be used in the framework of a varied and balanced diet and healthy lifestyle. Source: Official Journal of the European Union - COMMISSION REGULATION (EU) No 432/2012 ## Technical Specifications | Specification | Value | |---------------|-------| | Asin | B002DYJ0OI | | Country Of Origin | United Kingdom | | Department | unisex-adult | | Guaranteed Software Updates Until | unknown | | Is Discontinued By Manufacturer | Yes | | Item Model Number | 1031645 | | Manufacturer | Optimum Nutrition | | Product Dimensions | 20.48 x 20.48 x 28.38 cm; 850 g | ## Product Details - **Brand:** Optimum Nutrition - **Diet type:** Keto - **Flavour:** Chocolate - **Item weight:** 850 Grams - **Material Type Free:** Caffeine Free - **Product benefits:** Muscle Growth - **Protein source:** Casein - **Recommended uses for product:** Post-Workout - **Servings per container:** 28 - **Unit count:** 924.0 gram ## Images ![Gold Standard Casein Slow Digesting Protein Powder with Zinc,Magnesium and Naturally Occurring Glutamine and Amino Acids,Chocolate Supreme,28 Servings,0.92 kg,Packaging May Vary - Image 1](https://m.media-amazon.com/images/I/71h3SG0LciL.jpg) ## Available Options This product comes in different **Size Name, Flavour Name** options. ## Questions & Answers **Q: The label looks different compared to the previous ones I got, is it still the same OPTIMUM NUTRITION product?** A: As you evolve, so do we. The part of our mission is to help active individuals better understand OPTIMUM NUTRITION products. Now choosing the right product for you is easier with more visible product benefits, features and flavours on each tub. **Q: Has Gold Standard 100% Casein formula been improved?** A: Our latest formula is now fortified with zinc which contributes to a healthy immune system and magnesium to support normal protein synthesis. Source: Official Journal of the European Union - COMMISSION REGULATION (EU) No 432/2012 **Q: The tub is not full to the brim when opened, why is that?** A: This is completely normal and is to do with the way the powder is vacuum packed into the tub. The powder settles over time. This does not impact the weight or number of servings listed on the label. **Q: Are the ingredients tested and safe?** A: All of the ingredients in our products have been approved and considered safe for consumption by the European Food Safety Authority. ## Customer Reviews ### ⭐⭐⭐⭐⭐ 5+ stars *by on Reviewed in the United Kingdom 7 October 2023* Optimum Nutrition's Gold Standard 100% Casein is a top-tier product in the world of protein supplements. As someone who values slow-digesting protein sources, this product has been a game-changer for my fitness routine and overall nutrition.One of the standout features of this casein protein is its slow-release formula. It's perfect for those looking to maintain a steady supply of amino acids throughout the day or to support muscle recovery during the night. This slow digestion not only helps with muscle growth but also keeps me feeling fuller for longer, which is a great bonus if you're watching your calorie intake.The taste and mixability are impressive. It mixes easily with water or milk, creating a smooth and creamy shake without clumps.Quality is paramount when it comes to supplements, and Optimum Nutrition is a trusted brand known for its commitment to quality and purity. The Gold Standard 100% Casein is no exception. It's made from high-quality micellar casein, providing a clean source of protein without unnecessary fillers or additives.I also appreciate the versatility of this product. It's not just limited to shakes; I've used it in recipes like protein pancakes and yogurt, adding a delicious protein boost to my meals.While it's a bit pricier compared to some other protein options, the quality and performance make it worth the investment, especially if you prioritize slow-digesting protein for your fitness goals. Overall, Optimum Nutrition Gold Standard 100% Casein is a reliable and effective choice for those seeking a premium casein protein supplement. ### ⭐⭐⭐⭐⭐ The best powder for my porridge *by on Reviewed in the United Kingdom 17 December 2019* I have been making porridge using protein powders for years, I used to do it as a neccersary evil to make a quick, healthy breakfast that would keep me going. However, in the past I have found other powders to lack in sweetness and they go all clumpy when cooked. I would end up having to add extra honey or sugar to make it enjoyable but the texture was still naff.It was only on an off chance I tried this when I managed to get a cheap bag as it was nearly out of date and it took my porridge to another level. Now I actually look forward to it in the mornings and would choose it over any cereal, the best thing is I dont even need to add any extra sweetness!If anyone is interested in how I make it, as I have perfected it for my taste over time I do this:40g oats300ml milk/soya milk1 scoop of this-Shake the milk and powder like you normally would a protein shake,-Pour over the oats in a big breakfast bowl-Cook for 3 mins in microwave (750w)-Stir-Cook for a further min and check.This ends up being quite runny but thats how I like it, obviously for extra thickness just keep adding 30 secs, just be careful that it doesn't expand over the top which has happened to me many times.ENJOY! ### ⭐⭐⭐⭐⭐ Good *by on Reviewed in the United Kingdom 1 December 2025* Taste powdery but not to the point of clumsiness, even shaken with cold water is fine ## Frequently Bought Together - Optimum Nutrition Gold Standard 100% Micellar Casein Protein Powder, Slow Digesting, Helps Keep You Full, Overnight Muscle Recovery, Chocolate Supreme, 2 Pound (Packaging May Vary) - Optimum Nutrition Gold Standard 100% Whey Protein Powder, Double Rich Chocolate, 2 Pound (Packaging May Vary) - Optimum Nutrition Micronized Creatine Monohydrate Powder, Unflavored, 60 Servings, 300 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.com.ar/products/702109646-gold-standard-casein-slow-digesting-protein-powder-with-zinc-magnesium](https://www.desertcart.com.ar/products/702109646-gold-standard-casein-slow-digesting-protein-powder-with-zinc-magnesium) --- *Product available on Desertcart Argentina* *Store origin: AR* *Last updated: 2026-08-16*