Optimum Nutrition Gold Standard 100% Casein Slow Digesting Protein Powder with Zinc and Magnesium, Support Muscle Growth & Repair Overnight, Chocolate Supreme, 55 Servings, 1.82 kg

Optimum Nutrition Gold Standard 100% Casein Slow Digesting Protein Powder with Zinc and Magnesium, Support Muscle Growth & Repair Overnight, Chocolate Supreme, 55 Servings, 1.82 kg

Q: The label looks different compared to the previous ones I got, is it still the same OPTIMUM NUTRITION product?

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?

Our latest formula is now fortified with zinc which contributes to a healthy immune system and magnesium to support normal protein synthesis.

Q: The tub is not full to the brim when opened, why is that?

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?

All of the ingredients in our products have been approved and considered safe for consumption by the European Food Safety Authority.

Product ID: 47922816

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Details

Brand
Optimum
Flavour
Chocolate
Servings per container
53
Item weight
64 Ounces
Material Type Free
No Artificial
Diet type
Keto

⏳24g slow-release protein

💪10g essential amino acids

🛡️Zinc & Magnesium boost

Frequently Bought Together

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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)

Description

🌙 Fuel your gains while you sleep — the ultimate overnight muscle guardian!

SUSTAINED MUSCLE FUEL - 24g of micellar casein delivers a slow, steady amino acid flow overnight to maximize muscle repair while you rest.
LOW SUGAR HIGH IMPACT - Enjoy a clean, low-sugar formula that fits seamlessly into your balanced, health-conscious lifestyle.
CONVENIENT NIGHTTIME RITUAL - Designed for easy mixing and perfect before-bed consumption, making muscle maintenance effortless and routine.
ESSENTIAL AMINO ACID POWERHOUSE - Each serving packs 10g of naturally occurring EAAs, fueling recovery and growth with precision.
IMMUNE PROTEIN SYNTHESIS SUPPORT - Fortified with zinc and magnesium to enhance immune health and optimize protein synthesis for peak performance.

Optimum Nutrition Gold Standard 100% Casein is a premium slow-digesting protein powder delivering 24g of micellar casein and 10g of essential amino acids per serving. Enhanced with zinc and magnesium, it supports immune function and protein synthesis, making it ideal for overnight muscle growth and repair. With 55 servings per 1.82 kg tub, this low-sugar, easy-mix powder is perfect for fitness enthusiasts seeking sustained recovery and muscle maintenance during sleep.

Specifications

Product Name	Optimum Nutrition Casein Protein 1.8Kg 55 Servings (Chocolate Supreme)
Allergen Information	Contains: Milk, Soy
Weight	1.81 kg
Units	1820.0 gram(s)
Use By Recommendation	Use between meals, before bed
Serving Recommendation	1 Heaping Scoop
Manufacturer contact	4 Waterside, Dublin 24, Ireland
Brand	Optimum Nutrition
Format	Powder
Age Range Description	Adult
Country of origin	Ireland
Serving Size	100 g
Energy (kJ)	1463.00 kJ
Energy (kcal)	349.66 kcal
Fat	2.5 g
of which:	-
- Saturates	1.6 g
Carbohydrate	5.8 g
of which:	-
- Sugars	3.4 g
Fibre	3.5 g
Protein	74.0 g
Salt	1.9 g
Magnesium	283.0 milligrams (75.47% NRV)
Zinc	7.6 milligrams (76% NRV)

Have a Question? See What Others Asked

The label looks different compared to the previous ones I got, is it still the same OPTIMUM NUTRITION product?

Has Gold Standard 100% Casein formula been improved?

The tub is not full to the brim when opened, why is that?

Are the ingredients tested and safe?

Common Questions

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Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

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Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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