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Optimum Gold Standard 100% Casein
Gold Standard 100% Casein
Powered By: Optimum Nutrition

Premium Slow Digesting Casein Protein

  • 24g of Anti-Catabolic Micellar Casein per Serve
  • Over 4g BCAAs per Serve
  • Over 5g Glutamine & Glutamic Acid per Serve
  • Available in Big Range of Flavours
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Sometimes slower is better - especially when it comes to the rate of protein digestion. While rapid protein absorption is desirable immediately before or after exercise, delayed release is probably more beneficial throughout the remainder of the day; Optimum Nutrition's Casein is the ideal slow release protein to add to your supplement stack

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 proteins. Because of their unique time-released qualities, caseins are aptly described as anti-catabolic or muscle-protecting proteins.


SLOW-DIGESTING PROTEIN

Faster digesting protein is desirable immediately before and after exercise to help refuel recovering muscles, but slow digestion and absorption may be more beneficial at other times including bedtime when your body typically goes for hours without food. Casein products are acid sensitive and thicken in the stomach. Compared to some other proteins, it can take longer for our Gold Standard 100% Casein™ to be broken down into its amino acid subcomponents. By using only premium micellar casein as a protein source, Optimum have created a formula that sets the standard for slow digesting protein support. 

 

 

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    • What is the benefit of slow-release protein like Optimum Nutrition's Casein?

      Slow-release protein, such as Optimum Nutrition's Casein, offers a gradual and sustained release of amino acids into the bloodstream. This slow digestion and absorption rate make it ideal for times when rapid protein absorption is not necessary, such as between meals or before bedtime.

    • How does casein protein differ from other types of protein in terms of digestion?

      Casein proteins are pH-sensitive and form a gel-like substance in the acidic environment of the stomach. This unique property results in a slower digestion process compared to whey and other proteins, allowing for a prolonged release of amino acids into the bloodstream.

    • What makes casein protein suitable for bedtime consumption?

      Consuming casein protein before bedtime provides a steady supply of amino acids to muscles throughout the night when the body typically goes for hours without food. This helps prevent muscle breakdown and promotes muscle recovery and growth during periods of fasting.

    • How does Optimum Nutrition's Gold Standard 100% Casein™ stand out from other casein products?

      Optimum Nutrition's Gold Standard 100% Casein™ utilizes premium micellar casein as its protein source, setting a standard for slow-digesting protein support. This ensures a high-quality product that delivers the benefits of slow-release protein effectively.

    • When is it most beneficial to consume casein protein?

      Casein protein is most beneficial when consumed during periods of prolonged fasting or when rapid protein absorption is not required, such as between meals or before bedtime. It provides a sustained release of amino acids, supporting muscle recovery and preventing muscle breakdown.

    • How does slow-digesting protein like casein help protect muscles?

      Slow-digesting proteins like casein are described as anti-catabolic because they help prevent muscle breakdown by providing a continuous supply of amino acids to muscles. This muscle-protecting effect is especially valuable during periods of fasting or extended periods without food.

    • Can casein protein be used in conjunction with other protein supplements?

      Yes, casein protein can be used alongside other protein supplements, such as whey protein, to provide a combination of fast- and slow-release proteins for optimal muscle support throughout the day.

    • Is there a recommended dosage or timing for consuming Optimum Nutrition's Casein?

      Optimum Nutrition recommends consuming Gold Standard 100% Casein™ between meals, before bedtime, or any other time when a slow-digesting protein source is desired. Follow the serving size instructions provided on the product packaging for optimal results.

    • Can I use this while taking Elemental Nutrition HGH?

      Yes, you can take it whilst taking Optimum Gold's Standard Casein.

    • Hi there I've read that your product should be fine for people with lactose issues, do you have sample packs or smaller sizes please so I can test this out prior to buying a massive tub? Hoping this will be the cherry on my boulder shoulder building cake :)

      Our samples normally depend on what we get given by the supplier and Optimum Nutrition doesn't offer any sample sizes at this stage.

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    Reviews
    Optimum Gold Standard 100% Casein
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    Based on reviews collected by
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    Summary Of Reviews
    Optimum Gold Standard 100% Casein is a protein product that is highly praised for its taste, thickness, and effectiveness as an appetite suppressant. Many users have reported that it helps with weight loss and muscle gain, making it a great choice for fitness enthusiasts. However, some users found the product to be too thick or clumpy, and others were not fans of certain flavors.
    ✔️
    Delicious taste and thick consistency
    ✔️
    Effective for weight loss and muscle gain
    ✔️
    Acts as an appetite suppressant
    Summary generated automatically from the text of customer reviews.
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    Bruce L
    Optimum Gold Standard 100% Casein
    825g / 25 Serves Chocolate Peanut Butter
    It's hard to go wrong with ON protein products. This casein protein does exactly as advertised; it mixes slightly thicker than a WPI or concentrate and stops me from waking up ravenous in the mornings. Chocolate Peanut butter flavour is delicious.
    Collected via Trustpilot
    14/01/2024
    Jesse M
    Optimum Gold Standard 100% Casein
    1.75kg / 53 Serves Chocolate Supreme
    Great taste and have been using this product for years now.
    Collected via Trustpilot
    16/08/2023
    Pragnesh
    Optimum Gold Standard 100% Casein
    825g / 25 Serves Creamy Vanilla
    Before sleep take this and after gym
    Collected via Trustpilot
    07/07/2023
    Alen
    Optimum Gold Standard 100% Casein
    825g / 25 Serves Chocolate Peanut Butter
    It is exactly what they claim to be
    Collected via Trustpilot
    15/09/2022
    Ramin O
    Optimum Gold Standard 100% Casein
    1.75kg / 53 Serves Chocolate Supreme
    not quit 8 hour coverage but its ok
    Collected via Trustpilot
    12/04/2022
    S S
    Optimum Gold Standard 100% Casein
    1.75kg / 53 Serves Creamy Vanilla
    Tastes great.
    Collected via Trustpilot
    30/01/2022
    Miks
    Optimum Gold Standard 100% Casein
    1.75kg / 53 Serves Chocolate Supreme
    First time user here and I can see the good results
    Collected via Trustpilot
    24/08/2021
    Pragnesh
    Optimum Gold Standard 100% Casein
    1.75kg / 53 Serves Creamy Vanilla
    Perfect product
    Collected via Trustpilot
    22/08/2021
    Nelson T
    Optimum Gold Standard 100% Casein
    My favourite protein powder. Really works as appetite suppressant. Great brand and quality
    19/04/2021
    Hieu D
    Optimum Gold Standard 100% Casein
    1.75kg / 53 Serves Chocolate Supreme
    Great taste, great service!
    Collected via Trustpilot
    03/04/2021
    Rhett T
    Optimum Gold Standard 100% Casein
    825g / 25 Serves Chocolate Peanut Butter
    Very high quality protein, chocolate peanut butter is my least favourite flavour, nutty artificial tasting.
    18/03/2021
    Erin R
    Optimum Gold Standard 100% Casein
    1.75kg / 53 Serves Chocolate Supreme
    Love it to mix with chobani yoghurt.
    Collected via Trustpilot
    05/10/2020
    David
    Optimum Gold Standard 100% Casein
    825g / 25 Serves Chocolate Peanut Butter
    Taste can be better , quite clumpy
    Collected via Trustpilot
    13/09/2020
    Abdullah T
    Optimum Gold Standard 100% Casein
    Ok it’s great
    Collected via Trustpilot
    14/07/2020
    Matt I
    Optimum Gold Standard 100% Casein
    825g / 25 Serves Creamy Vanilla
    Tops protein
    Collected via Trustpilot
    03/07/2020
    Alessandro F
    Optimum Gold Standard 100% Casein
    Tastes like crap. Too thick
    Collected via Trustpilot
    27/06/2020
    Cristhian L
    Optimum Gold Standard 100% Casein
    It is really Amaizing
    Collected via Trustpilot
    07/06/2020
    Pragnesh
    Optimum Gold Standard 100% Casein
    Perfect product
    Collected via Trustpilot
    24/04/2020
    Dalibor C
    Optimum Gold Standard 100% Casein
    1.75kg / 53 Serves Chocolate Supreme
    ----------
    Collected via Trustpilot
    13/04/2020
    Pragnesh P
    Optimum Gold Standard 100% Casein
    Good one it works for best diets, mix with whey protein will give best results and eggs - make ice shake
    04/04/2020
    Chris T
    Optimum Gold Standard 100% Casein
    Good product, good taste. Sweet, but not too sweet, but you need to add more liquid because it gets very thick standard liquid amount. Over all, solid product, very useful last thing at night.
    Collected via Trustpilot
    19/02/2020
    DAVID A
    Optimum Gold Standard 100% Casein
    I really like the flavour and find it blend very well with milk and a little water
    Collected via Trustpilot
    08/02/2020
    Matthew Y
    Optimum Gold Standard 100% Casein
    tastes like shit
    Collected via Trustpilot
    21/12/2019
    Sergio
    Optimum Gold Standard 100% Casein
    1.75kg / 53 Serves Creamy Vanilla
    Best vanilla protein I've had, vanilla is a hard one to get right. I use this to make Konjac Rice Pudding, just mix like 8 packets of Konjac rice (with almost no calories) plus some water and heaps of this vanilla protein. You'll know when it's ready when it gets really thick and goopy and almost impossible to stir, and all of the lumps have gone. BTW it doesn't form lumps in a shaker, just when I mix it this way by hand. This "rice" pudding is delicious and has helped me a lot in my weight loss goals. It's got a very nice vanilla and sweet flavour, the thick consistency is very good, and if you add lots of orange blossom water, lots of extra vanilla extract, and some rose water, as well as cinnamon, it's almost as good as real rice pudding. Minus the guilt.

    I also add it to coffee sometimes to create a super-creamy latte type drink without the calories.
    Collected via Trustpilot
    20/12/2019
    Sergio
    Optimum Gold Standard 100% Casein
    Yeah, this is pretty awesome, a close second to the cookies and cream flavor. Perfect thick shake consistency, rich flavour, almost no carbs or fat, overall just a great product.
    Collected via Trustpilot
    20/12/2019
    Sergio
    Optimum Gold Standard 100% Casein
    It's obscene how delicious this is. A bit like an Oreo McFlurry crossed with a thick shake. And amazing that it has pretty much no carbs or fat, and keeps me full for hours. Really helps with the weight loss goals. You guys know what you are doing :)
    Collected via Trustpilot
    20/12/2019
    Sergio
    Optimum Gold Standard 100% Casein
    Delicious and creamy protein powder. Blends well into a thick creamy mousse if you use less water, or a thick shake consistency with more water that also tastes great. Loved the peanut and chocolate flavor, I’ve bought this and 2 other Optimum Nutrition casein protein flavors from Mr Supplement because I was so impressed with this protein brand, and Me Supplement has had the best price on this protein for a while now so I don’t shop for it anywhere else.
    Collected via Trustpilot
    07/10/2019
    Sergio
    Optimum Gold Standard 100% Casein
    Delicious protein, I like how the casein makes it thick and creamy. Barely any sugar and yet it still tastes sweet. Makes a good pudding/mousse I’d you use less milk or water.
    Collected via Trustpilot
    01/09/2019
    MATHEW J
    Optimum Gold Standard 100% Casein
    Love ON Casein and one of the best tasting cookies and cream..:)
    Collected via Trustpilot
    13/08/2019
    MATHEW J
    Optimum Gold Standard 100% Casein
    Great taste & awesome service
    Collected via Trustpilot
    13/08/2019
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