Optimum Nutrition Gold Standard Casein Slow Digesting Protein Powder with Zinc, Magnesium and Naturally Occurring Glutamine and Amino Acids, Creamy Vanilla, 28 Servings, 0.92 kg, Packaging May Vary

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

4.0 (116)

Optimum Nutrition Gold Standard Casein Slow Digesting Protein Powder with Zinc, Magnesium and Naturally Occurring Glutamine and Amino Acids, Creamy Vanilla, 28 Servings, 0.92 kg, Packaging May Vary

Overall Rating: 2.3 / 5 (average from multiple review sources, as of 18 Oct 2026)
Based on a total of 48,210 customer reviews from independent review platforms.

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£39.79
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(Creamy Vanilla, 908g) Optimum Nutrition Gold Standard 100% Casein

Overall Rating: 4.4 / 5 (average from multiple review sources, as of 1 Oct 2026)
Based on a total of 137,508 customer reviews from independent review platforms.

Sources & Transparency:
The values are derived from publicly available retailer ratings from platforms such as Feefo, http://Reviews.io , Trustpilot, and others, and are aggregated monthly.

All brand names and logos are the property of their respective owners.

Notice:
pricehunter.co.uk cannot guarantee that published shop ratings originate from consumers who have actually made a purchase from the reviewed retailer.
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Optimum Nutrition Gold Standard Casein Slow Digesting Protein Powder with Zinc, Magnesium and Naturally Occurring Glutamine and Amino Acids, Creamy Vanilla, 28 Servings, 0.92 kg, Packaging May Vary

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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
£39.79
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amazon.co.uk

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Optimum Nutrition Gold Standard Casein Slow Digesting Protein Powder with Zinc, Magnesium and Naturally Occurring Glutamine and Amino Acids, Creamy Vanilla, 28 Servings, 0.92 kg, Packaging May Vary - Details

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We have found 2 prices for Optimum Nutrition Gold Standard Casein Slow Digesting Protein Powder with Zinc, Magnesium and Naturally Occurring Glutamine and Amino Acids, Creamy Vanilla, 28 Servings, 0.92 kg, Packaging May Vary. Our price list is completely transparent with the cheapest listed first. Additional delivery costs may apply.

Optimum Nutrition Gold Standard Casein Slow Digesting Protein Powder with Zinc, Magnesium and Naturally Occurring Glutamine and Amino Acids, Creamy Vanilla, 28 Servings, 0.92 kg, Packaging May Vary - Price Information

  • Cheapest price: £39.79
  • The cheapest price is offered by amazon.co.uk. You can order the product there.
  • The price range for Optimum Nutrition Gold Standard Casein Slow Digesting Protein Powder with Zinc, Magnesium and Naturally Occurring Glutamine and Amino Acids, Creamy Vanilla, 28 Servings, 0.92 kg, Packaging May Vary is £39.79 to £53.64, with a total of 2 offers.
  • Payment methods: The online shop amazon.co.uk supports: Direct debit, Mastercard, Visa
  • Delivery: The shortest delivery time is In stock working days offered by amazon.co.uk.

User reviews

Our reviews come from Trustami, a service that automatically collects, links, and verifies reviews from various sources such as Google, eBay, Amazon, and Trusted Shops. This gives users a transparent overview of a manufacturer's customer satisfaction.

4.0 out of 5 stars

116 Ratings
5 stars
71
4 stars
12
3 stars
11
2 stars
5
1 star
17
Amazon.com Kunde

My product came sealed with an outer wrapping but I was surprised that there was no air tight seal underneath the lid. Also there was no scooper inside and the jar was only about half way full. I know they don't usually fill them to the brim but this seemed a little excessive.

via trustami

Amazon.com Kunde

Excellent product. Dependable quality.

via trustami

Amazon.com Kunde

I've been hesitant to try casein because people said it's hard to stir & it's grainy. I finally gave it a shot & love it! I mix a scoop with 2 cups of water. The vanilla flavor tastes like milk, it mixes fairly quickly with my smoothie whisk and it's just a smidge grainy but not at all like drinking…

via trustami

Amazon.com Kunde

I need protein supplements as I could not possibly get all the protein I need from food alone. This brand I trust for casein.

via trustami

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