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💥 Fuel your gains 24/7 with the gold standard in slow-release protein!
Optimum Nutrition Gold Standard 100% Micellar Casein Protein Powder offers 24 grams of slow-digesting protein per serving, enriched with 9 grams of essential amino acids to support muscle recovery and growth. Its creamy vanilla flavor mixes easily, making it an ideal post-workout or bedtime supplement. Packaged in a 1.81 lb tub with 25 servings, this gluten-free formula is trusted worldwide as a premium choice for fitness-focused professionals.






















| ASIN | B002DYJ0PW |
| Age Range Description | Adult |
| Best Sellers Rank | #3,842 in Health & Household ( See Top 100 in Health & Household ) #51 in Sports Nutrition Whey Protein Powders #467 in Sales & Deals |
| Brand | Optimum Nutrition |
| Brand Name | Optimum Nutrition |
| Customer Reviews | 4.6 out of 5 stars 5,794 Reviews |
| Diet Type | Gluten Free |
| Flavor | Creamy Vanilla |
| Global Trade Identification Number | 00748927024197 |
| Item Dimensions | 8.06 x 8.06 x 11.17 inches |
| Item Weight | 1.8 pounds |
| Manufacturer | Glanbia Performance Nutrition |
| Manufacturer Part Number | 1031649 |
| Model Name | Optimum Nutrition Gold Standard 100% Micellar Casein Protein Powder, Slow Digesting, Helps Keep You Full |
| Model Number | 1031649 |
| Number of Items | 1 |
| Package Type Name | Tub |
| Product Benefits | Muscle Growth, Muscle recovery, Nutritional support, Satiety |
| Protein | 24 g |
| Protein Source | Casein |
| Recommended Uses For Product | Fitness, Post-Workout |
| Servings per Container | 25 |
| Total Servings Per Container | 25 |
| UPC | 748927024197 |
| Unit Count | 32 Ounce |
| Vitamins And Minerals | 0, 0, 0, 15, 240, 50 percent_daily_value_fda, 11.0, 15.0, 230.0, 500.0, 85.0 milligrams, 230 milligrams |
A**O
Good protein!
Very good taste!
V**R
Great product
Good quality, strong packaging, great taste.
B**N
Essential part of recovery
For too long I had relied solely on whey protein to help build muscle, especially after intense work outs. It definitely helped, but often times I would wake up the morning after not feeling that much better. In other words, I wasn't really recovering that well. I considered just doubling up on the whey, basically eating another serving before bed, but then I did some research. I figured it would benefit me to alternate the types of protein supplement, and when I added the Optimum Nutrition Casein protein, it was a game changer. I now wake up in the morning feeling back to 100%. Even though I never train the same muscle groups two days in a row, I feel as if I could. I am making a 100% recovery in less than half the time. As a side benefit, the stuff tastes amazing. I mix mine with soy milk (yeah, I drink soy, get over it) and shot of light cream, after reading that a modest amount of fats help the body absorb large amounts of protein. Anyways, the vanilla is a very deep and satisfying flavor. To change it up I sometimes add some cinnamon powder, or some nutmeg and ground clove. On top of that, I eat it just before bed, and I am never super hungry in the morning, and I have eliminated my midnight snack routine. I use a hand crank egg beater to mix this stuff up, because even a little bit quickly turns into a thick mixture, sort of like wet concrete. It needs way more liquid to dissolve into than whey protein powder. Sometimes I also throw in some Greek style yogurt, but this stuff is thick enough already. The labeling says something about how Casein behaves differently when it hits the acid in the stomach, and that it expands, and you see this when you mix it up. If you have been missing something in the protein department, I would absolutely try this Casein. PROS: + Tastes awesome. + Fills you up, you feel satisfied, and won't be hungry for quite a while after. + A little powder goes a long way. + Slow absorption. CONS: - More expensive than most whey protein powders, but that's common to Casein.
T**K
Great protein powder!
I have been a longtime fan of this Casein Protein. It keeps me from getting hungry and I have not found a flavor I didn’t like. This blends well using just a shaker bottle. I usually mix with a couple additional ounces of milk than the directions call for, because that has gotten to be my preference. To each their own preference.
J**E
Great for baking, but taste is subpar
The taste is what kills it for me. In recipes, it's spectacular. I used it this weekend to make homemade protein cinnamon rolls. I've also used it to make banana bread, cookies, crepes, pancakes, frozen yogurt, and a vanilla cream cheese spread. For the bread products (the products with quite a few other ingredients), this powder is great. But, when you use it as a "main" ingredient (like in the pancakes or frozen yogurt), it has a very protein shake taste. I'm not sure how to describe it. Very fake- like there's too much sugar substitute or something. Like too much vanilla. I'm not sure. My husband hates it. He says it's like the taste of the powder (like if you stuck your finger in the powder and licked it). As a protein shake on it's own with just water, it's ok, but, as with all powders, it depends on your ratio. I've also used it with various fruits/vegetables, and it's much better (same concept as baking). I personally like it with a apple and spinach. Yum!
J**B
My daily protein powder.
I do a half a cup a day for breakfast. I've been doing it for years now. Good stuff. I prefer the vanilla for casein and the double rich chocolate for whey.
Z**.
Functionality and flavor are both good
I have specific health needs that require a high-protein, low-calorie diet, and this protein powder works perfectly as a breakfast meal replacement. I typically mix one scoop with 12 oz of 2% Fairlife milk and 8 oz of cold brew, which totals around 40 grams of protein. On its own, it provides 22 grams of protein per serving, making it easy to use multiple times a day to meet macro goals, even with just water. The flavor isn’t too sweet, and it adds a nice richness without a chalky texture. It also keeps me full from breakfast until my 1:00 PM lunch, even when I start my workday at 8:30 AM. For best results, I recommend using a good mixer bottle. My favorite is the Helimix 22 oz. That said, the powder dissolves well and doesn’t clump, making it easy to mix. Overall, this is a great choice for anyone looking to add quality protein to their diet without unnecessary calories or unpleasant textures.
R**.
The genuine article - ON Casein is the best.
I have ordered ON Casein twice now from Amazon and both times the product has been exactly as it should be. Same great product I have gotten from Optimum for years. Reliable quality and fresh. This is my favorite protein powder and so far getting it online through Amazon has been convenient and the product is the same as when bought locally.
N**N
Never bothered with anything else :)
Great packaging, great results from the product! The taste is wonderful in this, the vanilla tastes like vanilla but kind of punchy and thick which brings out that flavour even more and I love that. On a muscle building point of view, this is a great product, every night I have it, I wake up the next day in a lot less pain or no pain at all. The vitamins and minerals in it are a great addition and the macro-nutrients from it including the caloric value are just perfect for me. Although I get a little bloated when I have it, I'm completely back to my normal stomach in the morning so no issues there as I can't tell when I'm sleeping. This is definitely must have product and especially this flavour over the rest. I've tried the other flavours and few other brands and till now this has been the best overall for price and results.
A**T
Imbuvable
Texture imbuvable, donne envie de vomir
G**I
Too
Top
A**.
Top
Si va sempre sul sicuro con optimum nutrition. Gusto vaniglia cremosa mozzafiato
P**K
Muskelaufbau funktioniert
Ich bin schon Rentner und habe einen drastischen Rückgang meiner Muskeln gespürt. Bergab gehen hatte ich das Gefühl ich gehe auf den Knochen weil keinerlei Muskelunterstützung. Das hat sich sehr schnell geändert ohne Sport habe ich wieder stärkere Beine bekommen. Ich bin sehr zufrieden. Geschmacklich auch ok
Trustpilot
5 days ago
2 months ago