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251K Lincoln Road

Waitakere 0610

22B Cavendish Drive

Manukau 2104

4 Aranui Road

Auckland 1060

1 Wagener Place

Auckland 1025

Optimum Nutrition

Optimum Nutrition 100% Gold Standard Casein 4lb

Optimum Nutrition 100% Gold Standard Casein Protein 4lb

Note: Label may vary.


About Supplements.co.nz Optimum Nutrition Casein

We live in a world where 'fast' isn't just a way of life, but THE way of life. But when it comes to the human body, fast isn't always best.

Casein protein illustrates this perfectly. While fast-releasing protein is great for post-workout, it's not so great for the rest of the day. That's where casein protein comes in. ON 100% Casein Protein utilizes micellar casein, a powerful form of protein that digests slowly and releases over several hours.

Whey rejuvenates your muscles immediately following exercise, but casein fights catabolism for hours and hours. ON 100% Casein Protein is the perfect option for muscle preservation throughout the day.


Supplements.co.nz Optimum Nutrition Casein Recommended Use

Mix one scoop of 100% Casein with 10-12 ounces of your favorite beverage. For a complete blend, use a shaker. Casein works best away from exercise - right before bed, for example.

Nutrition Information

Optimum Nutrition 100% Casein Protein Supplement Facts

Serving Size: 1 scoop (32g)
Servings Per Container

  • Amount Per Serving
  • Total Calories
  • 120
  • Calories From Fat
  • 10g
  • Total Fat
  • 1g
  • Saturated Fat
  • 0.5g
  • Trans fat
  • 0g
  • Cholesterol
  • 10mg
  • Sodium
  • 150mg
  • Total Carbohydrates
  • 3g
  • Dietary Fiber
  • 1g
  • Sugars
  • 0g


  • Protein
  • 24g
  • Vitamin A
  • 0%
  • Vitamin C
  • 0%
  • Calcium
  • 60%
  • Iron
  • 0%
  •  L-Leucine      
  • 2129mg
  •  L-Isoleucine      
  • 1312mg
  • L-Valine
  • 1609mg
  • L-Lysine
  • 1822mg
  • L-Methionine
  • 644mg
  • L-Phenylalanine
  • 1144mg
  • L-Threonine
  • 1039mg
  • L-Tryptophan
  • 292mg
  • L-Alanine
  • 664mg
  • L-Arginine
  • 866mg
  • L-Aspartic Acid
  • 1589mg
  • L-Cystine
  • 79mg
  • L-Glutamic Acid 
  • 4950mg
  • L-Glycine
  • 510mg
  • L-Histidine
  • 688mg
  • L-Proline
  • 2421mg
  • L-Serine
  • 1396mg
  • L-Tyrosine
  • 846mg



Other Ingredients

Micellar casein, natural and artificial flavors, polydextrose, lecithin, gum blend (cellulose gum, xanthan gum, carrageenan), salt, malic acid, acesulfame potassium, sucralose, aminogen, FD&C yellow #5.


Warning: ALLERGEN INFORMATION:Contains milk and soy (lecithin) ingredients. KEEP OUT OF REACH OF CHILDREN.


While Supplements.co.nz strives to ensure the accuracy of its product images and information, some manufacturing changes to packaging and/or ingredients may be pending update on our site. Although items may occasionally ship with alternate packaging, freshness is always guaranteed. We recommend that you read labels, warnings and directions of all products before use and not rely solely on the information provided by Supplements.co.nz .

Always consult with a qualified healthcare professional prior to beginning any diet or exercise program or taking any dietary supplement. The content on our website is for informational and educational purposes only and is not intended as medical advice or to replace a relationship with a qualified healthcare professional.

Customer Reviews
4.4 Based on 8 Reviews
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Filter Reviews:

This is a great product! I use it for my last protein feeding before bed. Mixed with low fat Greek yogurt is a prefect high protein dessert especially if you have a sweet tooth

Sam M.
New Zealand New Zealand
Bad experience

tha last product I ordered has no very nice flavor. The one before was very good though

Martina M.
New Zealand New Zealand
Great product

Would expect nothing but 10/10 from ON. Great flavour and product

Ahmed N.
New Zealand
Optimum Nutrition Casein

I purchased the Vanilla. Great tasting product.

Sharon J.
New Zealand
Delicious and filling

Creamy, great for pancakes, shakes and desserts.

Lisa L.
New Zealand
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