---
product_id: 50625435
title: "Optimum Nutrition Gold Standard 100% Casein Slow Digesting Protein Powder with Zinc, Magnesium and Amino Acids, Support Muscle Growth & Repair Overnight, Creamy Vanilla Flavour, 55 Servings, 1.82 kg"
brand: "optimum nutrition"
price: "€ 166.12"
currency: EUR
in_stock: true
reviews_count: 8
category: "Optimum Nutrition"
url: https://www.desertcart.pt/products/50625435-optimum-nutrition-gold-standard-100-casein-slow-digesting-protein-powder
store_origin: PT
region: Portugal
---

# 24g slow-release protein 10g essential amino acids Zinc & Magnesium immune & synthesis support Optimum Nutrition Gold Standard 100% Casein Slow Digesting Protein Powder with Zinc, Magnesium and Amino Acids, Support Muscle Growth & Repair Overnight, Creamy Vanilla Flavour, 55 Servings, 1.82 kg

**Brand:** optimum nutrition
**Price:** € 166.12
**Availability:** ✅ In Stock

## Summary

> ⏳ Fuel your muscles overnight, wake up stronger!

## Quick Answers

- **What is this?** Optimum Nutrition Gold Standard 100% Casein Slow Digesting Protein Powder with Zinc, Magnesium and Amino Acids, Support Muscle Growth & Repair Overnight, Creamy Vanilla Flavour, 55 Servings, 1.82 kg by optimum nutrition
- **How much does it cost?** € 166.12 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/50625435-optimum-nutrition-gold-standard-100-casein-slow-digesting-protein-powder)

## 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

- • **Essential Amino Power:** 10g naturally occurring EAAs per serving to maximize muscle repair
- • **Overnight Muscle Fuel:** 24g micellar casein delivers a steady amino acid flow while you sleep
- • **Trusted Gold Standard:** Top-rated, gluten-free protein powder from a globally recognized brand
- • **Immune & Recovery Boost:** Zinc supports immunity; magnesium aids protein synthesis for optimal gains
- • **Creamy Vanilla Indulgence:** Smooth, easy-mix formula that turns your nightly shake into a treat

## Overview

Optimum Nutrition Gold Standard 100% Casein is a premium slow-digesting protein powder designed to support muscle growth and repair overnight. Each serving provides 24g of micellar casein protein, delivering a sustained release of amino acids, along with 10g of essential amino acids, zinc for immune health, and magnesium to support protein synthesis. With a creamy vanilla flavor and 55 servings per 1.82 kg tub, it’s ideal for fitness enthusiasts seeking effective overnight 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 Indications Casein proteins are pH sensitive and gel in the acidic environment of the stomach. As a result, it can take more than twice as long for caseins to be broken-down into their amino acid subcomponents than whey and other protein sources. Because of their unique time-released traits, caseins are aptly described as anti-catabolic or muscle-protecting proteins. Casein protein is ideal for use in between meals and before bed. Casein protein is sometimes known as "night time protein" because it's ideal to have just before you go to bed. Ingredients Micellar Casein, Natural and Artificial Flavors, Inulin, Salt, Gum Blend (Cellulose Gum, Xanthan Gum, Carrageenan), Lecithin, Sucralose, Aminogen, FD&C Yellow #5. Directions Add one heaped scoop of Gold Standard 100% Casein with 300 to 350 ml (10 to 12oz) 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

Review: 5+ stars - 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.
Review: Tastes well - Didn’t receive this order but I’ve had it before. Usually tastes pretty well.

## 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 |
|---------------|-------|
| - Saturates | 1.2 g |
| - Sugars | 4.2 g |
| ASIN | B002DYJ0N4 |
| ASIN  | B002DYJ0N4 |
| Age Range Description | Adult |
| Allergen Information | Contains: Gluten Free |
| Best Sellers Rank | 3,333 in Health & Personal Care ( See Top 100 in Health & Personal Care ) 2 in Casein Nutrition Protein |
| Brand | Optimum Nutrition |
| Carbohydrate | 11.0 g |
| Country of origin | United Kingdom |
| Country of origin  | United Kingdom |
| Customer Reviews | 4.4 4.4 out of 5 stars (12,489) |
| Customer reviews | 4.4 4.4 out of 5 stars (12,489) |
| Date First Available | 19 Aug. 2009 |
| Department  | GNC|ALL|ALL|PWD DIET W MILK NUT FACT |
| Energy (kJ) | 1482.00 kJ |
| Energy (kcal) | 354.20 kcal |
| Fat | 1.8 g |
| Format | Powder |
| Is discontinued by manufacturer  | Yes |
| Item model number  | 1102171 |
| Magnesium | 283.0 milligrams (75.47% NRV) |
| Manufacturer  | OPTIG |
| Manufacturer contact | 4 Waterside, Dublin 24, Ireland |
| Product Dimensions  | 20.48 x 20.48 x 28.38 cm; 1.75 kg |
| Protein | 73.0 g |
| Salt | 1.4 g |
| Serving Recommendation | 1 Heaping Scoop |
| Serving Size | 100 g |
| Units | 1820.0 Grams |
| Use By Recommendation | Use before bed and post workout |
| Weight | 1.81 kg |
| Zinc | 7.6 milligrams (76% NRV) |

## Product Details

- **Brand:** Optimum Nutrition
- **Diet type:** Keto
- **Flavour:** Vanilla
- **Item weight:** 1.75 Kilograms
- **Material Type Free:** No Artificial Colors, No Artificial Flavors, No Artificial Sweeteners
- **Product benefits:** Muscle Growth
- **Protein source:** Casein
- **Recommended uses for product:** Post-Workout
- **Servings per container:** 53
- **Unit count:** 1820.0 Grams

## Images

![Optimum Nutrition Gold Standard 100% Casein Slow Digesting Protein Powder with Zinc, Magnesium and Amino Acids, Support Muscle Growth & Repair Overnight, Creamy Vanilla Flavour, 55 Servings, 1.82 kg - Image 1](https://m.media-amazon.com/images/I/71asdY7t3mL.jpg)

## Available Options

This product comes in different **Size, Style** 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 R***T on 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.

### ⭐⭐⭐⭐⭐ Tastes well
*by J***R on 9 January 2026*

Didn’t receive this order but I’ve had it before. Usually tastes pretty well.

### ⭐⭐⭐⭐⭐ Good quality
*by D***D on 12 December 2025*

Works well

## Frequently Bought Together

- Optimum Nutrition Gold Standard 100% Micellar Casein Protein Powder, Slow Digesting, Helps Keep You Full, Overnight Muscle Recovery, Creamy Vanilla, 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)

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*Product available on Desertcart Portugal*
*Store origin: PT*
*Last updated: 2026-02-10*