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
Out of 10
Good
2463 Total Ratings
Verified Buyer Rating:
8
830 Verified Buyer Ratings
Average Taste Rating:
7.2
View Flavor Ratings
7
Creamy Vanilla
8
French Vanilla
8
Chocolate Supreme
7
Chocolate Peanut Butter
7
Chocolate Creme
7
Strawberry Cream
7
Mint Chocolate Chip - Exclusive!
7
Banana Cream
7
Chocolate Cake Batter
- -
Mint Chocolate Chip
7
Cookies & Cream
1-20 of 2,463 Reviews

ntesni9271's Rating
8/10
Chocolate Supreme
8/10

Difficult to mix in a shaker bottle as others have mentioned. Not horribly hard, but requires significant shaking to get it mostly dissolved. Taste is good, nothing amazing. Makes for a quality late night shake.



bots4633's Rating
7/10
Chocolate Peanut Butter
10/10

The taste was spot-on, wonderful taste!!! My problem with the chocolate peanut butter is how thick it is and how well it doesn't mix in a mixer bottle. I shook and shook for 5 minutes in several different blender bottles with both blender balls and blender tops and no matter what I still had chunks of powder that wouldn't mix. I eventually had to start using my electronic blender to mix this.



MIchaelJohn23's Rating
9/10
Banana Cream
10/10

MIchaelJohn23 did not leave a written review for this product.



rikjames82's Rating
9/10
Chocolate Supreme
9/10

I really like this stuff. I recommend trying it in warm/hot water. This way it isn't to thick and tastes like hot chocolate. I don't wake up starving either. Great stuff. I use it post and before bed. Rarely sore the next day.



Wittleen's Rating
8/10
Chocolate Creme
8/10

Wittleen did not leave a written review for this product.



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

I like to use this product to help my vegetable smoothies taste better. Works well to add a little flavor, and protein to my liquid meal.



Isira's Rating
9/10
French Vanilla
9/10

Isira did not leave a written review for this product.



derekadrake's Rating
9/10
Creamy Vanilla
9/10

derekadrake did not leave a written review for this product.



joshrupprecht's Rating
8/10
Cookies & Cream
9/10

joshrupprecht did not leave a written review for this product.



Drk4wb did not leave a written review for this product.



Dan7e's Rating
7/10
Cookies & Cream
6/10
Mint Chocolate Chip
8/10

Rating mostly on flavour and consistency. I find it doesnt mix so well with water and milk. I haven't tried with a blender though. I haven't lost any muscle size from the time I go to sleep to the time i wake up so I guess it does its job



Almoslim's Rating
10/10
Creamy Vanilla
10/10
French Vanilla
10/10

Almoslim did not leave a written review for this product.



lamb_'s Rating
10/10
Chocolate Supreme
10/10

This is delicious mixed with oatmeal or blended in coffee!



SFBodybuilder's Rating
10/10
French Vanilla
8/10

This stuff is awesome, and weird! The first time mixing I used a shaker, and Blob.... The blob was trying to come out of the opening. It just looked weird, and was moving! I added more water and it worked out, but the taste was very bland. Worst part about it was mixing it with milk. I've mixed other proteins with milk and no issues, but this mixed with milk was bad. I ended up using a blender mixed with water only and it worked out perfectly, no problems, only 1 dry pocket left of powder in the blender. I woke up not feeling hungry at all. It tasted good, with creamy milkshake texture. The taste was similar to ON whey vanilla. Next time I made a shake with water in the blender, threw in a banana, some blueberries and I couldn't get enough.



Eillya's Rating
7/10
Chocolate Supreme
8/10

Good product not top of its line. I rated it i becuase it is very heavy to mix



JamesBepko's Rating
10/10
Chocolate Peanut Butter
8/10

This is a good casein I like to stir in a couple tablespoons of peanut butter into right before bed. Like other casein my stomach turns a little before I fall asleep but I think my stomach just doesn't like food before bed. Trying cookie and cream next but not too sure how the peanut butter will go.



tomk25's Rating
9/10
Creamy Vanilla
7/10

Being a wrestler I was looking for something that would keep my appetite suppressed and would help me loose weight without loosing strength. This product has done exactly that and has helped keep my muscle mass without becoming frail. I recommend this product if you want to use it with a diet program. Creamy vanilla is a little hard to choke down though.



NotSteve's Rating
7/10
Cookies & Cream
5/10

NotSteve did not leave a written review for this product.



AMcG30's Rating
9/10
Chocolate Supreme
9/10
Cookies & Cream
7/10

This is a great protein snack before bed for me! I really enjoy mixing it with 1 tbsp of PB2 and a little cinnamon and water to make it like a pudding consistency. If you need some extra carbs, this would make a great frosting on a salt-free rice cake. Chocolate Supreme is my favorite...not a bad taste at all, mixed with stuff, and fine by itself. Cookies & Cream is OK. Nothing bothers me about it, but I can just tell it's not quite a natural flavor. Would be really good with cinnamon and vanilla or almond extract to get a frosting flavor.


1-20 of 2,463 Reviews