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  • Optimum Nutrition 100% Casein Protein
  • Optimum Nutrition 100% Casein Protein
  • 943g
  • 1800g

Optimum Nutrition 100% Casein Protein

Size Options

  R839.00   R1,269.00
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Free Delivery
Major Centres: orders over R200
Outlying Areas: orders over R599
Expected Delivery Date
Johannesburg, Pretoria, Durban
Mon 12 Dec or Tue 13 Dec
Cape Town, Other Areas
Tue 13 Dec or Wed 14 Dec

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.

Casein proteins found in Optimum Nutrition 100% Casein Protein 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.

• 24 g Instantized Blend of SLOW-DIGESTING CASEIN-Based Proteins
• Rich in Highly Anti-Catabolic MICELLAR CASEIN
• Over 9 g of BCAAs, Glutamine, and Glutamine Precursors per Scoop
• AMINOGEN Enhanced

Category: Protein Powder

How To Use It

• Take Optimum Nutrition 100% Casein immediately before bed and in between meals when delayed protein delivery is desired.

• Drink Optimum Nutrition 100% Whey Gold Standard before and immediately after workouts for a rapid "shot"of amino acids.

Most Recent of 21 Reviews
great product
Review by Larry(Date 4/8/14)
gained really solid muscle while using this a my bedtime shake. bit pricey but real value for money
Delicious and high quality protein powder
Review by Ania(Date 12/13/13)
Casein powder is amazing for baking and making protein fluff, and of all the casein powders I've had, ON makes the best tasting of the lot. Great for bulking and great for keeping you full for a long time. Yeah, it's a bit pricey, but ON is one of the most trustworthy brands in the game, so you know that each tub will contain what's advertised.
The best
Review by Renzo (Date 12/11/13)
Never have I had a better alternative to Pudding before i go to bed!!
Optimum Nutrition 100% Casein Protein
Take your fitness goal to the next level.
Free Delivery
for orders over R200.
All Major Centres
Orders over R200
Outlying Areas
Orders over R599
Expected Delivery
date for your parcel.
Johannesburg, Pretoria, Bloemfontein, Durban
Mon 12 December or Tue 13 December
Cape Town, Port Elizabeth, Outlying Areas
Tue 13 December or Wed 14 December
Nutritional Information
Serving Size: 32g
Servings Per Container: 56
Per 32g
% DV
Calories from Fat
Total Fat
Saturated Fat
Trans Fat
Total Carbohydrate
Dietary Fiber
Vitamin A
Vitamin C
Protein Blend (Micellar Casein, Calcium Caseinate), Natural and Artificial Flavours, Salt, Lecithin, Gum Blend (Cellulose Gum, Xantham Gum, Carrageenan), Sucralose, Aminogen

Aminogen is a registered trademark

This product is not intended to diagnose, treat, cure or prevent disease.
More Customer Reviews
Review by Yeskiel(Date 10/9/13)
The best casein on the market.Fuels your muscles as you sleep resulting in good recovery and muscle gains
Very good before bed
Review by Chad(Date 1/20/13)
Your body only has enough protein in it for about 6-7 hours while you sleep, when it runs out, muscle catabolism kicks in and you start losing muscle mass. Casein protein stops that from happening. It creates a protein 'drip effect' and feeds protein into your muscles for about 9 hours to stop you from losing muscle mass and you wake up without that burning hunger sensation that a lot of gymers like myself wake up with.
Best I've used
Review by Renzo (Date 11/26/12)
Great taste! Like a desert that kept me full all night, did great things for my recovery!
top stuff
Review by Yusuf(Date 11/8/12)
really great stuff if you can afford it
Brilliant Product
Review by Dinko9(Date 9/14/12)
I've gained some solid muscle using this product. The taste is amazing. Blend a cup of ice, Greek yogurt and a scoop of this together, heaven!
Just what you need!!
Review by Kyle (Date 8/1/12)
With my busy lifestyle, i only eat supper after 9pm every night. which is not good!!! But as soon as i got me some of this stuff. Its one shake, then I'm full and ready for bed, and keeps me full till morning. This stuff is really the best!! Recommend it!!
Good casein protein
Review by Yn(Date 5/3/12)
Just like the whey, it mixes and tastes great. Its ideal before bed and you can even blend it with the whey for optimal fast and slow absorption.Price is way out though when compared to S.A market.
One of the best
Review by Tee(Date 2/15/12)
It has great taste and u get results body wise
Important if youre bulking
Review by Dominic(Date 2/12/12)
Tastes amazing especially cookies and cream. I took it right before bed as your body can utilize this slow release protein to repair muscle during the normal nocturnal repair cycle. I did observe muscle gains on it. Awesome product. Trustworthy.
Best Casein
Review by Ari(Date 12/31/11)
Optimum is known for creating the best Protein powders and this is no different. Far better than the local brands in quality and tastes great to.
the real deal
Review by Matt(Date 7/4/11)
Mix this with organic milk pre bed for a great slow release formula. This mixes just as a good casein should - sludge like. It almost has a texture similar to custard. Really good product that I can trust. I have also taken Evox casein , not bad but I'm not sure its as good as this. If you can spend the few extra bones then definitely purchase ON.
Better than a milo
Review by Jared(Date 6/21/11)
I find that I have managed to stall mass loss a bit with this. I find it hard to maintain mass. The taste on the chocolate one is AMAZING and it is really nice and thick and creamy mixed with a shaker and a block of ice.
Guilt-free desert
Review by Kagiso(Date 2/1/11)
Nice and thick cookies n cream flavour is just the pre-bed desert I need. Drink it during t he day as well to stop the munchies!

Great product, worth all the money!
very good
Review by Larry(Date 12/17/10)
gained some solid muscle while using this pre-bed for a few months. a bit pricey but well worth it
Great taste
Review by Stefan(Date 8/11/10)
Muscles feels fuller already,it was the missing link! Love it!
Do it!
Review by Michael(Date 7/28/10)
Chocolate is wonderful and thick! very pleased with it! It helped keep me full for longer and helped control cravings! Use in conjunction with the Optimum nutrition whey protein to see good body improvements while staying lean!
Great Stuff
Review by TK(Date 5/3/10)
Mixed with milk, this is a great tasting shake just before going to bed. It keeps my hunger pains down when I wake up in the morning and keeps me in an anabolic state while I sleep.
Review by Jolly(Date 4/16/10)
This stuff is awesome - great taste, VERY creamy!!! and fills me up over night
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SKU #: ON02785CF