--- product_id: 47922816 title: "Gold Standard 100% Casein Slow Digesting Protein Powder with Zinc and Magnesium, Support Muscle Growth & Repair Overnight, Chocolate Supreme, 55 Servings, 1.82 kg" brand: "optimum nutrition" price: "R4764" currency: ZAR in_stock: true category: "Optimum Nutrition" url: https://www.desertcart.co.za/products/47922816-gold-standard-100-casein-slow-digesting-protein-powder-with-zinc store_origin: ZA region: South Africa --- # 24g slow-digesting micellar casein 10g essential amino acids per serving Zinc & magnesium for immune & protein synthesis support Gold Standard 100% Casein Slow Digesting Protein Powder with Zinc and Magnesium, Support Muscle Growth & Repair Overnight, Chocolate Supreme, 55 Servings, 1.82 kg **Brand:** optimum nutrition **Price:** R4764 **Availability:** ✅ In Stock ## Summary > 💤 Fuel your gains while you sleep — the ultimate overnight muscle recovery shake! ## Quick Answers - **What is this?** Gold Standard 100% Casein Slow Digesting Protein Powder with Zinc and Magnesium, Support Muscle Growth & Repair Overnight, Chocolate Supreme, 55 Servings, 1.82 kg by optimum nutrition - **How much does it cost?** R4764 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/47922816-gold-standard-100-casein-slow-digesting-protein-powder-with-zinc) ## 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 - • **Smooth & Convenient Mix:** Effortlessly blends into a creamy, clump-free shake—perfect for busy professionals who demand quality and taste in every scoop. - • **Sustained Muscle Fuel ⏳:** Delivers 24g of premium micellar casein for a slow, steady amino acid release overnight, maximizing muscle repair while you rest. - • **Essential Amino Power 💪:** Packed with 10g of naturally occurring essential amino acids to support muscle growth and recovery after intense workouts. - • **Trusted Gold Standard Quality:** From a globally recognized brand with 4.5-star reviews and a loyal following, ensuring premium purity and performance in every tub. - • **Immune & Metabolic Boost 🛡️:** Fortified with zinc to strengthen your immune system and magnesium to enhance normal protein synthesis—because recovery is more than just muscles. ## Overview Optimum Nutrition Gold Standard 100% Casein is a slow-digesting protein powder delivering 24g of micellar casein per serving, enriched with zinc and magnesium to support immune health and protein synthesis. Designed for overnight muscle repair, it provides a steady release of 10g essential amino acids, mixes smoothly, and is trusted by fitness enthusiasts worldwide for premium quality and effective recovery. ## 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 Micellar Casein, Cocoa, Natural and Artificial Flavours, Salt, Soy Lecithin, Cellulose Gum, Xanthan Gum, Acesulfame Potassium (61 mg/serving), Carrageenan, Sucralose. 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 As with any dietary or herbal supplement, you should advise your health care practitioner of the use of this product. If you are nursing, pregnant, or considering pregnancy, you should consult your health care practitioner prior to using this product. Keep out of reach of children.This product is labelled to United States standards and may differ from similar products sold elsewhere in its ingredients, labeling and allergen warnings Legal Disclaimer Food supplements 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 One Victoria Square, Birmingham, B1 1BD, GB 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 | B002DYJ0M0 | | ASIN | B002DYJ0M0 | | Age Range Description | Adult | | Allergen Information | Contains: Milk, Soy | | Benefits | muscle recovery | | Best Sellers Rank | 2,972 in Health & Personal Care ( See Top 100 in Health & Personal Care ) 1 in Casein Nutrition Protein | | Brand Name | Optimum Nutrition | | Country Of Origin | United Kingdom | | Country of origin | United Kingdom | | Customer Reviews | 4.5 4.5 out of 5 stars (8,870) | | Customer reviews | 4.5 4.5 out of 5 stars (8,870) | | Department | unisex-adult | | Diet Type | Keto | | Flavour | Chocolate | | Global Trade Identification Number | 00748927024227 | | Is discontinued by manufacturer | Yes | | Item Dimensions | 20.5 x 20.5 x 28.4 centimetres | | Item Weight | 64 Ounces | | Item model number | 1031646 | | Manufacturer | Optimum Nutrition | | Manufacturer | Optimum Nutrition | | Manufacturer Contact Information | OPTIMUM NUTRITION 4 Waterside, Citywest Business Campus, Dublin 24, Ireland One Victoria Square, Birmingham, B1 1BD, GB gpncustcare@glanbia.com www.optimumnutrition.com/recycle | | Manufacturer Part Number | 1031646 | | Material Type Free | No Artificial Colors, No Artificial Flavors, No Artificial Sweeteners | | Model Name | Optimum Nutrition Gold Standard Casein Protein Powder | | Model Number | 1031646 | | Net Content Volume | 11.14 Litres | | Number of Items | 1 | | Package Type Name | Tub | | Product Dimensions | 20.48 x 20.48 x 28.38 cm; 1.81 kg | | Recommended Uses For Product | Fitness | | Total Servings Per Container | 53 | | UPC | 748927024227 | | Unit Count | 1820.0 gram | ## Product Details - **Brand:** Optimum Nutrition - **Diet type:** Keto - **Flavour:** Chocolate - **Item weight:** 64 Ounces - **Material Type Free:** No Artificial Colors, No Artificial Flavors, No Artificial Sweeteners - **Number of items:** 1 - **Product benefits:** muscle recovery - **Recommended uses for product:** Fitness - **Servings per container:** 53 - **Unit count:** 1820.0 gram ## Images ![Gold Standard 100% Casein Slow Digesting Protein Powder with Zinc and Magnesium, Support Muscle Growth & Repair Overnight, Chocolate Supreme, 55 Servings, 1.82 kg - Image 1](https://m.media-amazon.com/images/I/71g7O7uYioL.jpg) ## Available Options This product comes in different **Size, Flavor** 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. ## Frequently Bought Together - 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) - Optimum Nutrition Gold Standard 100% Whey Protein Powder, Double Rich Chocolate, 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.co.za/products/47922816-gold-standard-100-casein-slow-digesting-protein-powder-with-zinc](https://www.desertcart.co.za/products/47922816-gold-standard-100-casein-slow-digesting-protein-powder-with-zinc) --- *Product available on Desertcart South Africa* *Store origin: ZA* *Last updated: 2026-05-12*