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Home Substance categories Meal Replacement & Protein Optimum Nutrition 100% Casein Protein

100% Casein Protein (Optimum Nutrition)

Support this site, buy 100% Casein Protein from affiliate retailers (see all 100% Casein Protein prices and serving sizes):

Format Store Notes Price/serving Price
4 lb
NetNutri.com 		Shipping: Calculated by weight within the US; Canadian orders will ship by UPS at a flat rate of $16.00 per order regardless of size (includes insurance)  $0.72 $41.99
4 lb
A1Supplements.com 		Shipping: Calculated by weight
Save $5 on orders > $90: Code - 5OFFA1
Free gift with orders > $90
Save 4% on orders > $200
Save 8% on orders > $500  		$0.74 $42.95
4 lb
AllStarHealth.com 		Shipping: Flat rate - $5.95 within the US  $0.74 $42.99


Average user rating from: 8 users

Overall rating
3.0
Mental energy (1 rating)
1.0
Length of effects (1 rating)
5.0
Low development of tolerance (1 rating)
1.0
Low dependence (1 rating)
1.0
Fat loss (2 ratings)
1.0
Vascularity (1 rating)
1.0
Pump (1 rating)
1.0
Thermogenic effect (1 rating)
2.0
Muscle gain (1 rating)
4.0
Strength (2 ratings)
4.0
Taste (8 ratings)
3.5
Mixes well (6 ratings)
3.0
Safety (5 ratings)
5.0
Suppressed appetite (4 ratings)
3.3
Recovery ability (3 ratings)
4.3
Anti-catabolic (6 ratings)
4.6
Stamina (1 rating)
1.0
Low side effects (2 ratings)
3.0
Physical energy (1 rating)
1.0
Value for money (8 ratings)
4.0
Ingredient profile (2 ratings)
4.5
Reported side effects (adverse events)

None yet
 


0 of 0 people found the following review helpful
Monday, 22 March 2010

Written by calngyn - Top 10 reviewer - View all my reviews

Overall rating
3.9
Taste
2.5
Mixes well
3.5
Safety
5.0
Suppressed appetite
4.0
Anti-catabolic
4.5
Value for money
3.5
Ingredient profile
4.5
Vanilla

Compared to other flavors of ON's 100% Casein, Vanilla casein was a finer texture, which made mixing a tad easier and not so thick even when mixed in milk, but still slow sipping like molasses.

Mixed in milk, the taste was pretty bad, a very unnatural vanilla taste. Comparable to ON's vanilla whey, but more of a tang to it. In water, the taste was downright horrendous.

Great to mix with other proteins as the flavor can be masked and overpowered by other flavors pretty well. Ingredients are great, so no complaints there. Solid casein source that's convenient.
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0 of 0 people found the following review helpful
Saturday, 20 March 2010

Written by calngyn - Top 10 reviewer - View all my reviews

Overall rating
4.1
Taste
4.0
Mixes well
3.5
Safety
5.0
Suppressed appetite
4.0
Anti-catabolic
4.5
Value for money
3.5
Ingredient profile
4.5
Cookies and Cream

Taste is AMAZING in milk, by far my favorite ON flavor, but is not great at all in water. In milk it mixes a lot thicker, and with lesser milk, it can be difficult to mix thoroughly, or drink it all out the cup without it staying in there. To describe the taste, it is very much like an Oreo milkshake flavor. Being so thick it is fairly filling even on its own.

One thing about cookies and cream is that if adding any to a PWO shake or in combination with another flavor whey, cookies and cream is fairly overpowering, and other flavors can be easily lost, skewed or ruined:p

I recommend this product for anyone looking for a casein source that tastes great and needs it in a snap.
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0 of 0 people found the following review helpful
soundcheck129
Thursday, 22 October 2009

Written by soundcheck129 - #1 reviewer - View all my reviews

Overall rating
3.6
Taste
2.5
Mixes well
3.5
Recovery ability
4.0
Anti-catabolic
5.0
Value for money
3.0
So I'm pretty sure I'm the last person on Earth to try ON's Casein. But that's ok, because I was one of the first to try the new Chocolate Peanut Butter flavor. In spite of my excitement though, it seems I would have been better off abstaining. Perhaps it was because I had visions of UP2.0 dancing in my head, but this did not do justice to its name.

In water, this tasted fairly chocolatey, but there was zero PB taste. It was very close in flavor and consistency to Dymatize's 12 Hour Fudge Brownie. Mixed up thick, but that's to be expected from casein. Oddly, the PB flavor elected to make an appearance when mixed with milk, but this still wasn't mind-blowing, it was solid though. This tastes best when mixed with some XF peanut flavoring, but I feel like I really shouldn't have to go that far.
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0 of 0 people found the following review helpful
Sunday, 03 August 2008

Written by runningriot - Top 50 reviewer - View all my reviews

Overall rating
4.0
Muscle gain
4.0
Strength
4.0
Taste
3.5
Mixes well
3.5
Safety
5.0
Recovery ability
4.0
Anti-catabolic
4.5
Low side effects
5.0
Value for money
3.5
optium nutrition makes a great casein, i have used the vanilla flavor. the shake mixes up much thicker than whey, but still has a pretty good taste, ecspecially in milk. this is a great protein to take before bed, and, as far as i know, is the only 100% casein protein on the market. a casein shake before bed was a simple way to get some extra protein into my diet, and i believe it really haelped me put on some pounds during my bulk. the anti catabolic nature of casein also hepled me recover from workouts and not be as tired or sore the next day. this is also a great protein to take any other time of the day when you know you wont be eating for a while since the protein digests much slower. i would reccommend it to anyone looking for a night time protein.
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0 of 0 people found the following review helpful
ponshoe
Wednesday, 28 May 2008

Written by ponshoe - Top 5 reviewer - View all my reviews

Overall rating
4.4
Taste
4.5
Mixes well
3.5
Suppressed appetite
4.0
Anti-catabolic
5.0
Value for money
5.0
After trying it for the first time, i need to say that i totally disagree with all you people against chocolate supreme taste. I decided to give em a try to the chocolate supreme and cookies and cream, i read lots of bad feedback on taste thing, but i didnt care and went for them.

Chocolate Supreme

8/10 The taste surprised me, i thought it would be a nasty clumpy thing but thats not the case for me, i really enjoy it. The mixability is decent but you need a shaker or a blender, the consistency is thick but nothing out of the extraordinary, at least with 10 oz water. I prefer this flavor over ON 100% Whey Double rich chocolate, which i can't swallow due to i hate it, a thing the many users dont report, thats why taste terms are individual.

Cookies and Cream
9/10 It doesnt taste like real cookies and cream but the flavor its very good, you can enjoy it, it tastes more like a vanilla cream shake with just a slight taste of cookies, much more better than its whey version. Consistency and mixability is thick without a problem of clumps or anything, similar to the chocolate version.

Out of two, i go with Cookies and Cream, but you can't go wrong with either. Next try will be Banana Cream and Vanilla and ill keep you posted about them.
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