Weather extremes in upper South and lower North Island causing some shipping delays

Muscle Nation Custard Casein Protein Combo

was save {{ selectedOption.saleSavingsPercent }}%
{{ getFromPrefix }}

Serves: {{selectedOption.serves}}

Shop now pay later, no extra cost!

Dev only info
Applied contract Id: {{ }} for a discount of: {{ selectedOption._Contract.value }}{{ selectedOption._Contract.percentage === true ? '%' : '$ (fixed amount)' }}
- +

Stock Notification


Grab two tubs of your favourite Muscle Nation Custard Casein Protein.

Muscle Nation Custard Casein Protein Combo contains:

  • Muscle Nation Custard Casein Protein 1KG
  • Muscle Nation Custard Casein Protein 1KG

Casein is a dairy protein that is slowly digested by the body. This is due to the formation of a clot inside the stomach, which will take longer to be digested. Because of the slow release, this type of protein is ideal to be ingested before bed or throughout the day when you go for long periods of not refuelling the body.  Muscle Nation has crafted a casein protein, which is made of 90% casein and concentrate delivering 25.2g of complete protein to the body. Custard Casein Protein has no filler, gums or creamers so you can rest assured you have a high-quality product.  Sprint Fit loves the taste and feels like a guilt free treat. 

Muscle Nation Custard Casein Protein features:

  • Support calorie processing. When you combine this product with the right diet and exercise plan tailored to your fitness goals, you will see better results. 
  • Support body composition goals by providing the body with slow-release protein so you can refuel the body with the right nutrients for an extended period of time.
  • Have a slowly digested product as casein takes longer to be digested by the body, making this product great to be taken before bed or throughout the day.
  • Consume a high protein and low fat and carb product ideal for when you are watching your calorie intake.

Muscle Nation Custard Casein Protein contains:

  • 140 calories
  • 26.6g of protein
  • 1.2g of MCT powder
  • 1.8g of fat and 1.5g is saturated
  • 4g of carbohydrates and 2.3g is sugar
  • No fillers, gums, creamers or amino spiking
  • No GMO or gluten
  • 100% transparent label


Container Size: 1 KG
Serving Size: 2 Scoops (40g)
Servings Per Container: 25


Please Note: Nutritional Information is to be used as a guide only, actual values may differ between flavours and sizes and when formulations are modified or updated by the manufacturer. 
Contact us if you have any questions regarding this products ingredients.

NEW: Same Day/Evening Express Shipping now available at checkout*

All orders are Free Shipping Nationwide:

NZ Post Courier – Tracking information will be emailed to you once your order has been collected from our warehouse.  

Collection 4 times a day, final pick each day at 3.45pm Monday to Friday. We will process and pack your parcel within minutes of receiving your order.

Estimated Delivery Times:

Auckland – Overnight (However many Auckland orders will be delivered the same day depending on what time the order is placed)

North Island - Overnight

South Island – Overnight (for larger parcels allow 2 business days)

Rural - +1 business day from the above times

Upgraded Options

Signature Required – $2 per shipment
South Island Overnight delivery - $10 per shipment. Operates business days only.
Same Day/Evening Express delivery - $15 per shipment. Operates business days only. Limited suburbs in Auckland, Hamilton, Wellington and Christchurch.

*Express South Island overnight delivery service available during check out.  These orders are transported by air rather than NZ Post trucks.

NZ Post does not operate on weekends or public holidays. 

Click here to view the full Shipping Details and Returns Policy.


Muscle Nation Custard Casein Protein Combo Reviews

4.2/5 based on 18 customer reviews

Overall Rating

8.4 /10

18 Ratings

Average Flavour Rating

7.8 /10

8 Flavours

Top Rated Flavour

10 /10


  • 3.5/5

    0/10 Coconut Caramel

    Nice taste, mixes well but texture is a bit "earthy", like a vegan protein shake. Not up to the same standard as the Inspired Custard mixes. Wortg checking out though!
  • 3.5/5

    6/10 Golden Ice Cream

    I read that this flavour was exactly like the cookie crumble ice cream however i believe it didn’t taste it like it at all so was a bit disappointed as I was anticipating a different taste. I would love to get the vanilla or white chocolate flavour eventually
  • 5/5

    10/10 Vanilla

    The vanilla protein custard is the businesssss! So yum heated up with canned peaches ???? I haven’t tried any other flavours…yet
  • 3/5

    6/10 Chocolate Hazelnut

    Choc Hazlenut is quite nice, was expecting Nutella but the flavour is extremely mild. Does whip up ok as per instructions but an electric whisk would be better as it was pretty dense just mixing with a fork. Makes an ok thickshake with more liquid. I guess it does the trick for those wanting a filling sweet snack, but it definitely is nowhere near the real thing.
  • 5/5

    10/10 Cookies & Cream

    10/10 Vanilla

    Absolutely love the custard cookies and cream! It's my favorite! tastes amazing. you can have it in a shake or warm or have it cold it in a bowl like a custard! I've tried the vanilla one as well, and that's amazing too!
  • 5/5

    10/10 Vanilla

    Amazing ! Love love love these . Are my absolute lifesavers for a sweet toothed girl. I want them all! Converted many friends!
  • 5/5

    10/10 Golden Ice Cream

    10/10 Strawberry Cheesecake

    5/10 White Chocolate

    I'm a big fan of these custard proteins! So I got 3 flavours, golden ice cream which taste like the cookie crumble ice cream is bar far number one, followed closely by strawberry cheesecake (taste like strawberry calci-yum yoghurt) and the white chocolate one. The white chocolate was okay but nowhere near as good as the first two. Next on my list is cookies & cream!
  • 4.5/5
    I love the cookies and cream it’s so good! Definitely a great dessert replacement for those with a sweet tooth. Quite filling too
  • 5/5

    10/10 Chocolate Hazelnut

    So delicious, taste and consistency is like a chocolate marshmallow fluff. The perfect snack before bed! Very filling and satisfying, which is great for someone like me who needs to eat a very large volume of food to feel full.
  • 5/5

    10/10 Golden Ice Cream

    Just like custard! Great flavour and filling.

Instagram sprintfit


Receive exclusive offers and news that will brighten up your day!

Sign up successful!