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Casein & Custard Protein

9 results

Products

  • Casein Custard Protein by Muscle Nation Same daydispatchbefore
    2pm AEST

    21

    Casein Custard Protein by Muscle Nation
    Casein

    2 sizes / 11 flavours

    Price$39.95

  • Anabolic Night by Maxs Same daydispatchbefore
    2pm AEST

    9

    Anabolic Night by Maxs
    Casein

    2 sizes / 2 flavours

    Price$89.95

  • R1 Casein by Rule 1 Same daydispatchbefore
    2pm AEST

    3

    R1 Casein by Rule 1
    Casein

    2 sizes / 5 flavours

    Price$89.95

  • Protein Mousse by Red Dragon Same daydispatchbefore
    2pm AEST

    212

    Protein Mousse by Red Dragon
    Casein

    6 flavours available

    Price$79.95

  • Burn Sleep by Maxines Same daydispatchbefore
    2pm AEST

    212

    Burn Sleep by Maxines
    Casein

    2 sizes / 2 flavours

    Price$49.95

  • Burn Dessert Mousse by Maxines Same daydispatchbefore
    2pm AEST

    1

    Burn Dessert Mousse by Maxines
    Casein

    2 sizes / 2 flavours

    Price$49.95

  • Protein Custard by Gen-Tec Same daydispatchbefore
    2pm AEST

    212

    Protein Custard by Gen-Tec
    Casein

    5 flavours available

    Price$89.95

What is casein protein?

Casein is the other protein in milk, making up roughly 80 per cent of it where whey makes up the remaining 20. What sets it apart is how it behaves in the stomach: casein clots and forms a gel, so it empties slowly and releases amino acids over several hours rather than in the sharp spike you get from whey. Micellar casein is the least processed form and the one that gels most.

That slow release is the whole reason people buy it. The common use is before bed, where a serve supplies amino acids through the night, and the secondary use is as a between meals protein that actually holds off hunger. The same property makes it thick, which is why casein is the base for most protein puddings and custard style products.

Why shop casein at Supplement Mart?

  • 15 casein and slow release proteins in stock
  • 58 stores nationwide, with click and collect available
  • Free shipping Australia-wide on orders over $150, with no surcharges
  • East and west coast dispatch on orders placed before 2pm on weekdays
  • Supplement Mart Rewards, earning points on every dollar spent
  • An in-house nutritionist you can actually ask a question

How it is usually used

One scoop in 250 to 300 ml of milk or water, most often in the evening. Use less liquid and leave it in the fridge for twenty minutes and it sets into a pudding, which is how a lot of people prefer it. Casein is not the obvious choice straight after training, where a faster protein makes more sense.

Which one suits your goal

The quickest way to narrow it down:

  • Overnight or between meals: casein protein digests slowly, so one serve releases over hours rather than minutes.
  • Around training instead: whey protein isolate digests quickly, which is the opposite job to casein.
  • Dairy-free: vegan and plant protein is the slow-ish alternative without any milk protein.
  • Higher kilojoule targets: mass gainers often blend casein with whey and carbohydrate for a bigger, slower serve.

How to choose

  • Start with the type, not the brand. Every major brand makes a good concentrate and a good isolate; the type decides how it fits your day.
  • Check the protein per serve. Most whey and plant proteins land between 20 and 30 g. Read the nutrition panel rather than the front of the tub.
  • Compare the cost per serve. A larger tub is almost always cheaper per shake, so work out the price per serve before comparing two tubs on sticker price.
  • Account for lactose. Isolate is filtered lower in lactose than concentrate, and plant protein has none at all.
  • Pick a flavour you will finish. You will be drinking it most days. Most ranges sell a smaller size, which is the cheap way to find out whether you like it.

Popular right now

Looking for a proven place to start? These are the ones moving fastest in this range:

Brands in this range include Muscle Nation, Maxs, Rule 1, Optimum Nutrition, Red Dragon, Maxines, Gen-Tec Nutrition and FitFrenzy.

Shoppers browsing Casein & Custard Protein also look at Healthy Snacks & RTDs, Protein Bars & Snacks, Protein Powders, Snacks & Drinks, Max's and Sleep & Stress Support.

Frequently asked questions

What is the difference between casein and whey?

Digestion speed. Whey is absorbed quickly and produces a sharp rise in blood amino acids over an hour or two. Casein clots in the stomach and releases slowly over several hours. Whey suits the period around training, casein suits overnight or long gaps between meals. Many people keep both.

Should I take casein before bed?

That is the most common use, and the logic is sound: it covers the longest stretch of the day without food. Research on protein before sleep generally shows the amino acids are digested and used overnight. Whether it produces a meaningful difference in muscle gain over simply hitting your daily protein target is less clear cut.

Why is casein so thick?

Because it gels. Casein forms a clot when it meets acid, and it thickens in cold liquid too, which is exactly the property that slows its digestion. If you want it thinner, use more liquid and drink it promptly; if you want a pudding, use less and refrigerate it.

Can I use casein after training instead of whey?

You can, and you will still get the protein, but it is not the obvious choice. After training a faster protein delivers amino acids sooner. If casein is what you have, it is far better than skipping the protein altogether.

Is casein suitable if I am lactose intolerant?

Less so than whey isolate. Micellar casein retains some lactose, and the serve size is usually generous. If dairy is a problem for you, a whey isolate or a plant protein will be easier to tolerate.

Sources

Last reviewed: 10 October 2026