Optimum Nutrition Gold Standard 100% Micellar Casein Protein Powder, Slow Digesting, Helps Keep You Full, Overnight Muscle Recovery, Cookies and Cream, 4 Pound (Packaging May Vary)

Cookies and cream is amazing. I drink once a day and never tire of it. High quality, taste great even with water! The macros are the best around the ingredients are very good!

Casein is an underrated supplement and this a great version of it. Great taste, decent value.

I drink this before bed to help with recovery and that extra bit of protein. It taste great and I feel it helps me sleep faster/better. To get it to 100% dissolve, I use room temp water to mix it then refrigerate a few hours before bed. You're left with a creamy and clump-free drink!

I love this brand and have been purchasing whey protein for many years. I like the taste of this protein and love the benefits of casein like slower digestion. The only issue with this protein is dissolvability. I like to make a protein shake every morning with my Nutribullet and add ice, fruit, protein powder, and water or almond milk. The protein shakes made with casein are icy and chunky. The same shake made with Optimum Nutrition whey is super creamy. I would love to know if anyone has found the secret to making a creamy protein shake with casein, or if there's a flavor that's better than others for dissolvability. For now, I've started adding the casein protein powder to oatmeal and it's delicious!

If you're serious about bodybuilding, or at least about gaining muscle and being a regular at the gym, chances are that you've done your research on protein supplements. Whey protein is fast releasing/absorbing. If you are looking for a supplement before bed/meal replacement once in a while, casein might be the way to go. I've been buying this product for about 1.5 years now and I'm totally satisfied with it. Let me break it down a little bit. - It tastes GREAT! Almost like a smoothie. - It mixes well with water, milk, coconut water (lol). - Peanut Butter - Bread sandwich with a Casein shake - Oh lord, it tastes heavenly. - I take Whey protein as well, so I can't really quantify the effectiveness of casein separately, but I can tell you have I have gained considerable muscle overall and have been able to build some strength as well. - Post workout recovery has been quicker, in my opinion, since this is extra protein intake. - It's *slightly* more grainy than ON 100% Whey, but that's okay! I think it's reasonably priced. I'm a huge fan of optimum nutrition and I am a vegetarian. I can use all the protein I can get and I totally don't mind buying casein in addition to 100% Whey. PS: Casein + Plain oats taste great! I used to have oatmeal with Whey but thrown in Casein shake with regular oats, it tastes SO MUCH better, I actually enjoy having oatmeal.

I will rave about Optimum Nutrition all day, they make excellent SIMPLE products that don't include a bunch of fluff and they don't try and market themselves by promising that their products will do things for you that others won't. Their Casein protein is no exception. Their products are efficient and effective, and they taste good. Don't buy proteins that have a bunch of extra stuff in it (vitamins, BCAA's, etc.). While those are important and you should definitely be consuming them in one form or another, don't let a company mark up their protein 40% because they threw some extra stuff in their. In most cases, you can get better and more effective vitamins or BCAA's for less money by just buying them separately. Educate yourself on Casein in order to decide if it is right for you, and if it is, buy this stuff. It is worth noting that casein protein powder is much thicker then whey protein when you mix it with water and drink it, just something to be prepared for. When comparing different proteins, look at the nutrition facts and look at how much of the calories in a serving are coming from protein. When you are taking PROTEIN powder you expect most of the calories to be coming from protein right? You might be surprised by what you find out.

My experience with ON casein so far. (2 flavors) Peanut butter Chocolate: TASTE - Awesome with milk which is the way I drink my protein shakes. Completely different story with water. Its horrible. Hard to even finish. MIXIBILTY - With milk it takes a good amount of effort to even get it to a drinkable state. It does not mix very well. Almost every time you will get clumps no matter what you do. Ive learned over time never put the powder in first. It will just stick to the bottom. I pour milk, powder and then finish it off with milk. Makes is a lot easier to mix. Cookies and Cream: TASTE - Very good. To me it tastes like a combination of graham crackers and cream. With milk its great but what surprised me was with water. Its almost as good, nothing like peanut butter chocolate. Which is nice if you do not prefer milk with your shakes. MIX - Again completely different story then Peanut butter Chocolate. Mix very easily with both milk and water. No clumps what so ever. I'm basing my 5 stars on cookies and cream only. Peanut butter chocolate I would give 4 stars due to the fact its harder to mix and tastes horrible with water.

Really good, can also be mixed in warm milk for a hot chocolate protein on a cold day.

First time I open the lid of an Option Nutrition product and didn't find a seal.

Would not recommend cookies and cream flavour, it’s filled with cookie chunks which don’t dissolve in water. It might be good if you incorporate it into your cooking eg some pastries, but you would be better off with chocolate/vanilla flavours if you just want a shake to mix with water/milk.

This is the first casein protein supplement that I have used after starting gymming. I started going to gym not to lose weight (am athletic built), but to build muscle mass. And my workouts were rigorous upper and lower body workouts. After a month of going without any protein supplement, I and my trainer both felt that a whey supplement would be needed, simply because my daily protein intake was not inline with the workouts that I was doing. But whey is fast acting protein which is to be taken right after your workout. For a month or so, I was taking whey protein also before bedtime with milk. But that had to change since at bedtime, a slow digesting protein like casein is recommemded. This is so that your muscle synthesis goes unhindered even at night when you are not eating anything. Hence I ordered this. First things first. The jar has a outer seal (on the jar lid) which has a ON hologram. Check this first. In many authentic ON supplements available in India, there is no moisture proof seal after opening the initial outer seal. This is normal. Initially upon finding the absence of inner seal, I did get anxious regd the authenticity of the supplement I ordered (esp since I have great trust in items fulfilled by Amazon ... and this was one). I got in touch with ON customer care and sent them pictures of batch no, mfg date and exp date, jar front and back. Got a prompt reply confirming the authenticity of the product I ordered (this one was imported in India by Neulife). Whew!!! My trust was intact. :)) You too can do this check after ordering ON products to check its authenticity. Secondly. ON has authorized retailers in India (Neulife and Healthkart as of 13-Jan-2015). When you verify the authenticity of the product from ON customer care by sending them pictures of the product and barcode and batch no, they usually reply that the batch no is valid or not. They also mention that they do not guarantee the authenticity of the ON product if it is not distributed via their authorized retailers (Neulife and Healthkart as of 13-Jan-2015). Till date, I have ordered ON Casein twice from Primarc Pecan Retail since it sells items fulfilled by Amazon, and like I said earlier - I have trust in items fulfilled by Amazon. One jar sold by Primarc Pecan Retail was imported in India by Neulife and the other by Primarc Pecan itself. I trust Primarc Pecan. I have been using Whey Protein bought from this seller, but I would really like Primarc to be one of the authorized retailers of ON (which they are not currently). So that I can rest assured that the item I buy is authentic and genuine. Primarc Pecan: If you are reading this, please do the needful asap. I take ON Casein at bedtime with cold milk. Ummmmm! Its thick (unlike whey .. which is thin even after mixing it with milk) and yummy beyond your wildest dreams. Ok!!!! Am getting a bit carried away here. But this stuff is seriously tasty. I have tried 'Chocolate Peanut Butter' and 'Cookies and Cream' - and the former absolutely rules!!! Also after I started using it, I feel more refreshed in the morning after my 7-8 hr sleep. Maybe the body is getting better protein coverage at night through slow absorbing Casein. Only time will tell the real difference, but for now am happy with the fresh feeling that I have in the morning which also pushes me to workout better the next day. Go for ON Casein protein if you are seriously considering slow and steady muscle building. Of course, Whey protein (its a separate product) after workouts is also a must.

You don't even need a shaker for this! This is huge deal if you are using this for slow release protein before bed. I personally cannot be bothered cleaning a shaker before bed. This reduces the friction to increase your protein intake because it's so easy to mix with just a spoon. Even with a smaller amount of liquid. Amazing.

Best Taste and Original Product, Cheers Cloudtail