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.

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.

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.

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.

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

SMOOTH CONVENIENT - Creamy vanilla flavor with an easy mix formula—just shake or blend for a delicious, velvety protein shake anytime.
SUSTAINED MUSCLE FUEL - 24g of micellar casein delivers a steady amino acid flow overnight, maximizing muscle repair while you rest.
LOW SUGAR HIGH IMPACT - Only 4.2g sugars per serving, keeping your nutrition clean without compromising on taste or performance.
IMMUNE RECOVERY POWERHOUSE - Fortified with zinc and magnesium to support immune health and optimize protein synthesis for faster recovery.
NIGHTTIME NUTRITION ESSENTIAL - Designed as the ultimate 'nighttime protein' to prevent muscle breakdown and fuel growth during sleep—don’t miss out!

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 function and protein synthesis. With 10g essential amino acids and low sugar content, it’s designed for overnight muscle growth and repair. Available in creamy vanilla, this easy-to-mix powder is perfect for fitness enthusiasts seeking sustained recovery and muscle maintenance during sleep.

Common Questions

Are the products genuine and authentic?+

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.

How long does delivery take and is it reliable?+

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.

What is Desertcart? Is it safe to order from?+

Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

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.

€ 116.74

Duties & taxes incl.

Slovakiastore

Free Returns

30 daysfor PRO membership users

15 dayswithout membership

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Trustpilot

TrustScore 4.5 | 7,300+ reviews

Meera L.

Smooth transaction and product arrived in perfect condition.

3 weeks ago

Khalid Z.

Great experience from order to delivery. Highly recommended!

1 week ago

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Product Name	HEALTH_PERSONAL_CARE
Allergen Information	Contains: Egg may contain, Gluten may contain, Milk, Soy may contain
Weight	924 g
Units	924.0 gram
Storage Instructions	In a cool, dry place
Manufacturer contact	Glanbia Nutritionals UK Ltd: One Victoria Square Birmingham B1 1BD
Country of origin	United Kingdom
Brand	Optimum Nutrition
Format	Powder
Age Range Description	Adult
Country of origin	United Kingdom
Serving Size	100 g
Energy (kJ)	1482.00 kJ
Energy (kcal)	354.20 kcal
Fat	1.8 g
of which:	-
- Saturates	1.2 g
Carbohydrate	11.0 g
of which:	-
- Sugars	4.2 g
Protein	73.0 g
Salt	1.4 g
Magnesium	283.0 milligrams (75.47% NRV)
Zinc	7.6 milligrams (76% NRV)

Optimum Nutrition Gold Standard 100% Casein Slow Digesting Protein Powder with Zinc, Magnesium and Amino Acids, Support Muscle Growth & Repair Overnight, Creamy Vanilla Flavour, 28 Servings, 924 g

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