Optimum Nutrition Gold Standard 100% Casein Reviews

Ideal for Between Meals and Before Bed to Feed Muscles and Fuel Recovery*

View Product Info
Overall Rating
8.7
Out of 10
Good
2364 Total Ratings
Verified Buyer Rating:
8.8
757 Verified Buyer Ratings
Average Taste Rating:
7.6
View Flavor Ratings
7.9
Creamy Vanilla
8.3
Chocolate Supreme
7.7
French Vanilla
7.6
Chocolate Peanut Butter
7.3
Chocolate Creme
7.2
Strawberry Cream
7.1
Blueberries & Cream
7.7
Banana Cream
7.6
Chocolate Cake Batter
7.9
Cookies & Cream
1-20 of 2,364 Reviews

bkbowhunter's Rating
10/10

bkbowhunter did not leave a written review for this product.



shaban96's Rating
9/10
Creamy Vanilla
9/10
Chocolate Supreme
9/10

alright this casein is one of the best tasting i have ever tried. I Mean Muscletech I have tried all & they all suck big time.



DChe22y's Rating
7/10
Chocolate Supreme
7/10

It tastes reasonably good and does the job, but it doesn't mix into a smooth shake. I always end up with chunks of powder even after a full minute of shaking.



Jlaura's Rating
10/10
Cookies & Cream
10/10

Cookie & cream is so gooddd! It's better With milk than water . Take a shake before bed and it's seems like ice cream . ON's products are perfect ! See results with good workouts. Love it !



Gungrave223's Rating
8/10
Banana Cream
7/10

Can't say that the taste is great but it does it the job.



VictorGover's Rating
10/10
Banana Cream
10/10

This really helps with metabolism.



tennisnh86's Rating
9/10
Chocolate Creme
7/10

I tried this on back to back nights throughout a week against MuscleTech Casein for comparison. There was noticiable differences between the two brands. I got chocolate flavor of both brands, in my opinion MuscleTech wins hands down for flavor. The biggest difference between the to comes in the thickness of the drink after it is mixed. Optimum nutrition Casein mixed and drinks much thicker then Muscletech when mixed with the same amount of milk. The purpose of Casein is to clump and clot in the stomach so it takes longer to pass through and digest. I am going to assume that if the protein mixes thicker in the shaker cup then it is going to clot thicker in the stomach. If that is the case, Optimum Nutrition has the superior product here.



FloydLawton's Rating
9/10
Banana Cream
7/10

Casein protein normally tastes bad no mater which one you get, but this one is actually good



kenritchie7's Rating
10/10

Hands down the best tasting Casein I've ever had. I could not wait till the end of the night to be able to make another shake. I mixed with water and milk. Milk was much better to me gave it a much richer and thicker taste. Very addicting, I could never get enough!



ouerkeqi's Rating
10/10
Chocolate Creme
10/10

ouerkeqi did not leave a written review for this product.



Rjasch93's Rating
10/10
Cookies & Cream
10/10

awesome casein. milk with milk for an awesome taste. little pricey



paszti007's Rating
10/10
French Vanilla
6/10

Hi, My post-workout CF supplement. For me it is easy to shake, good value, my body absorbs it very well. Every segment of it is recognized next morning through an excellent wake-up! The taste could be more intense, but I need effect more than taste. Recommend it to others.



reynolds706's Rating
8/10
Chocolate Supreme
8/10

It's great just make sure to use a good amount of water or you'll have s funky mess. Other than that great tasting and a good clean four d of flow digesting protein.



Snuggs2123's Rating
10/10
Cookies & Cream
9/10

This stuff is awesome for night time recovery. Going to bed stiff and sore is not my favorite way to get a good night sleep. This paired with Gold Standard 100% Whey, My recovery time is minimal with barely any soreness. Taste great good product. so recommend this paired with Gold Standard 100%. I got mine in Optimum Her Stack. Another great way to get the best results and save some cash.



chidongongo's Rating
9/10
Chocolate Supreme
9/10

Great product with great flavor, but gave it a 9 because chocolate does clump a bit. Would recommend vanilla as it doesn't clump at all and it tastes very good.



FreshFlipPinoy's Rating
10/10
Banana Cream
1/10

I hate casein in general due to the thickness of it but ON's Casein mixes pretty well! It also has the same scoop ratio as the Gold Standard Whey which is a good thing. Now, the flavor, Banana Cream is disgusting. I thought having banana as a flavor would make no mistake but I was wrong. It taste like bubblegum. The Chocolate mint although taste good but better if mixed with Peanut Butter. Overall, a decent product, just need to fix the banana cream flavor and we're good to go!



jacobkanter5's Rating
7/10
Cookies & Cream
4/10

The taste is really bad and you have to get accustomed to it. But the product itself is good.



keramidas21's Rating
7/10
Chocolate Supreme
3/10

Good amount of protein and pretty low in calories too. I would rate this higher, but it just does not taste good. It clumps like other casein powders, but the chocolate supreme flavor (the top rated flavor) just doesn't taste very good. I think I'm definitely going to look into other powders for next time.



trevor.tapia's Rating
9/10
Chocolate Supreme
9/10

trevor.tapia did not leave a written review for this product.



nikkosguy's Rating
10/10
Chocolate Creme
9/10

I like this product very much. It is the cleanest casein I can find. The sweetener in this powder is stevia, the only natural sweetener with a glycemic index of zero. It does not come unflavored or I would buy that one. But I enjoy it late at night. It keeps me feeling full until breakfast. It mixes better than a lot of protein powders in my Ninja single serve blender. It has a good protein to weight ratio per serving. So that means more bang for the buck.


1-20 of 2,364 Reviews