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Optimum Nutrition Casein Protein 896g

Optimum Nutrition

Optimum Nutrition Casein Protein 896g

Optimum Nutrition Casein Protein 896g

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Protein Powders

Next day delivery before 3pm

Free next day delivery as standard, on orders over £150 before 3pm.

Contact us for assistance

Get in touch with your personal account manager, or contact the team on support@pbnutrition.uk.

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Product Detail

Optimum Nutrition Gold Standard 100% Casein is designed for athletes who demand sustained protein support. Unlike fast-digesting whey, casein protein releases amino acids slowly into the bloodstream, supporting muscle growth and repair for hours after consumption—especially overnight. This makes it the ideal choice before bed or during long periods between meals when your body needs steady nourishment.

  • 24 g slow-digesting protein: Supports muscle growth and repair throughout the night.
  • Muscle-protecting formula: Helps prevent muscle breakdown with sustained amino acid release.
  • Fortified with zinc and magnesium: Contributes to normal protein synthesis and immune function.
  • Low sugar and fat: Only 115 kcal per serving with under 1 g of sugar.
  • 100% Micellar Casein: Premium-quality protein source for smooth, consistent digestion.

Casein’s unique slow-release formula makes it the perfect evening shake to fuel recovery and protect lean muscle while you sleep. With added magnesium and zinc to support metabolism and immune health, Gold Standard 100% Casein delivers all-round nutritional support for serious results.

USAGE

Mix 1 rounded scoop (33 g) with 300–360 ml of cold water and enjoy before bed or between meals for sustained protein delivery. Ideal for supporting overnight muscle recovery.

NUTRITIONALS

Per 1 Scoop (33 g) Per 100 g
Energy 483 kJ (115 kcal) 1463 kJ (350 kcal)
Fat 0.8 g 2.5 g
– of which saturates 0.5 g 1.6 g
Carbohydrates 1.9 g 5.8 g
– of which sugars 1.1 g 3.4 g
Fibre 1.1 g 3.5 g
Protein 24 g 74 g
Salt 2.5 mg 1.9 g
Magnesium 93.5 mg 283 mg
Zinc 2.5 mg 7.6 mg

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.

ALLERGEN STATEMENT

Contains milk. No common allergen added.

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Shipping & Returns Policy

Please find our shipping and returns policies and guidelines here.

FAQ's

Testimonials

“My favourite distributor to use with the best customer service I’ve ever had”

“Love working with the guys at PB, they are very knowledgeable of the products they stock and give great advice”

“Can’t thank Protein Bargain enough, the guys have helped me build it from the start!”

About Us

Providing the best products and highest level of service.

PB Wholesale is the fastest growing supplement wholesaler in the UK, we are a multichannel business and distribute over 100 of the world’s best brands in sports nutrition.

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Free Next Day Delivery

We got you! Free next day delivery over £150, on orders before 3pm.

Personal Account Manager

For a guided order process, extensive product knowledge and communication on the latest deals.

Exclusive Brands

We offer an unparalleled selection of exclusive brands, boasting over 100 reputable names and over 2500 SKU’s.

UK & EU Shipping

We take pride in our extensive distribution network, covering nationwide UK delivery and EU shipping.

FAQs

How to register an account?

Signing up for an account is an effortless and free, short process! Simply click here!

Alternatively you can speak to our customer service team on support@proteinbargainwholesale.co.uk and one of our Account Managers will be in touch.

When you create an account with us, you'll gain access to a range of exclusive benefits, including:

  • Personal Account Manager
  • Full visibility of all the brands we carry and competitive pricing.
  • Regular updates featuring new
  • products and brands.Convenient access to your order history.
  • Quick and easy order process

How to place an order?

Ordering from Protein Bargain Wholesale has never been easier. Whether you prefer the convenience of online browsing through our user-friendly website, a quick call from our dedicated sales team, or even a message via WhatsApp, Email or Instagram to our knowledgeable Account Managers, we can cater to your preferred method.

Which delivery methods are used?

We use DPD for next day delivery service. Please visit https://www.dpdlocal.co.uk/ for further information and also to track your delivery. All orders above £150 have free delivery. Any order below this amount will incur a cost of £5.99 plus VAT. Saturday delivery can be arranged at an extra charge (please contact us for details).

Pallet Orders:

Larger orders may be shipped via pallet using one of our dedicated couriers. For next day delivery on pallet orders, our cut off time is 1pm.

Usual Time-Scale for order delivery?

For orders placed before our standard delivery deadline at 3pm, we aim to get your order delivered to you the next working day. If your order is placed after the courier cut-off we will aim to deliver your order the following day.

What are the benefits of a wholesale account?

If you need assistance, our dedicated Personal Account Managers are here to guide you through the ordering process, offering expert product knowledge, seamless communication, and access to the latest deals. You will be able to access the most sought-after brands in the nutrition industry with exclusive brands only available here at Protein Bargain Wholesale.

Rest assured with our fast and reliable UK & EU Shipping services, we guarantee that your essential nutrition needs are met with efficiency and quality. At Protein Bargain Wholesale, we prioritise your convenience and satisfaction. Plus, spend £150+VAT to receive free next day delivery ensuring your orders are swiftly processed and delivered right to your doorstep.

If any items in your delivery arrive damaged, please contact our customer service team within 48 hours of receiving your order at support@proteinbargainwholesale.co.uk or (+44) 151 3292321. Please include images showing the condition of the delivery and the damaged items. Our team will provide you with a damage form to fill out, which will request details about the damaged product and how you would like the issue resolved. We will then follow up with you to provide a solution or outcome.

Occasionally, you may receive a faulty product that needs to be reported to the brand. In such cases, we kindly ask that you hold onto the item for 10 working days, as the brand may require its return.

What should I do if I’ve received a damaged item? 

If any items in your delivery arrive damaged, please contact our customer service team within 48 hours of receiving your order at support@proteinbargainwholesale.co.uk or (+44) 151 3292321. Please include images showing the condition of the delivery and the damaged items. Our team will provide you with a damage form to fill out, which will request details about the damaged product and how you would like the issue resolved. We will then follow up with you to provide a solution or outcome.

Occasionally, you may receive a faulty product that needs to be reported to the brand. In such cases, we kindly ask that you hold onto the item for 10 working days, as the brand may require its return.