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Our ReviewOptimum NutritionGold Standard Casein

Optimum Gold Standard Casein is a slow-digesting protein with 24g per 34g serving, low in carbs and fat. Ideal for muscle recovery.
Optimum Gold Standard Casein
24gProtein
3gnCarbs
1gFAT
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Optimum Nutrition Gold Standard Casein isn't just another protein powder on the shelf; it's a product from a brand with a rich history in the fitness and nutrition world. What sets this particular powder apart? Well, for starters, it's primarily made up of micellar casein, which is known for its slow-digesting properties, making it an excellent choice for those looking for a sustained protein release, especially before bedtime or between meals. With a serving size of 34g, you're getting a solid 24g of protein, only 4g of net carbs, and a mere 1g of fat.

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Ingredients

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For an Optimum Nutrition product, this one comes with a relatively lean list of ingredients. The main and first ingredient of course is the primary protein source: Micellar casein. This is a slow-digesting protein, which means it provides a steady release of amino acids over time. This makes it an excellent choice for those looking to fuel their muscles during longer periods without food, like overnight.

Protein Matrix
Micellar Casein

The cocoa powder that's added not only gives it the Chocolate Supreme flavor but also adds some antioxidants to the mix. The gum blend, consisting of guar gum, gum acacia, and xanthan gum, is added for texture and consistency. These are generally considered safe, but if you're someone with a sensitive stomach it can sometimes cause upset, it's something to be aware of.

Lecithin is also added and acts as an emulsifier, helping with the mixability of the powder. It's a small detail, but one that can make a difference in the overall experience. Magnesium oxide, zinc sulfate monohydrate, and the others are great inclusions. Zinc, for instance, plays a vital role in immune function and protein synthesis.

Unfortunately for the more health-conscious among us: acesulfame potassium and sucralose are included. These are artificial sweeteners, and while they're approved for use, some people may prefer more natural alternatives.

All in all, the ingredients seem well-thought-out, with a focus on delivering quality protein and added minerals. Our main concern is the artificial ingredients, though this may not be an issue for everyone.

Reviewed Product
 Gold Standard Casein
Reviewed Flavor
Chocolate Supreme
Product Ingredients
Micellar casein, cocoa powder (processed with alkali), natural and artificial flavor, salt, gum blend (guar gum, gum acacia, xanthan gum), sunflower and/or soy lecithin, magnesium oxide, acesulfame potassium, sucralose, zinc sulfate monohydrate.
Label Endorsed As
Allergens
milk, soy

Effectiveness

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When evaluating the effectiveness of a protein powder, it's crucial to consider its primary purpose and how its nutritional profile aligns with that goal. ON Gold Standard Casein is designed to be a slow-releasing protein source, and its primary ingredient, micellar casein, fits the bill perfectly.

Digestion

Micellar casein is a milk-derived protein that's known for its slow digestion and absorption rate. This means that when consumed, it provides a steady and prolonged release of amino acids into the bloodstream. For individuals looking for a protein source that can sustain them through longer periods, such as overnight, this is a fantastic choice. The steady release ensures that muscles are being fed and repaired even during times of rest.

With a generous 24g of protein per 34g serving, it's evident that this product is packed with the essential macronutrient. This high protein content, coupled with the slow-release nature of casein, makes it particularly effective for muscle recovery and growth.

The net carb content is impressively low at 4g, with only 1g of sugars. This makes it a suitable option for those watching their carb intake or following specific dietary regimens. The fat content is also minimal at 1g per serving, ensuring that most of the caloric content comes from the protein itself.

However, effectiveness isn't just about protein content. The added minerals, such as zinc, magnesium, and calcium, play crucial roles in various bodily functions, from bone health to muscle function and immune support. Having these in a protein powder is a bonus and speaks to the product's comprehensive approach to nutrition.

Taste

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Right off the bat, the taste was rich and reminiscent of a creamy chocolate milkshake. It wasn't overly sweet, which I appreciated, especially considering some protein powders can go overboard. Compared to other chocolate-flavored protein powders I've tried, this one holds its own quite well.

Texture-wise, it was smooth with a slightly thick consistency, which likely comes from the micellar casein, but also from the gum blend.

In terms of mixability, with water, it mixed relatively well, though it was a tad creamier when mixed with milk. There were no clumps, which is always a win. The lecithin probably played a role in ensuring that smooth mix in this product.

Value

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When assessing the value of Optimum Gold Standard Casein, it's essential to weigh its offerings against its price point and how it stacks up in the market. Given the brand's reputation and the quality of ingredients used, I'd categorize this as a mid-to-premium protein powder.

Relative Cost
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The primary ingredient, micellar casein, is known for being a bit pricier than some other protein sources due to its slow-digesting properties and benefits. The inclusion of this quality protein source, coupled with the added minerals like zinc, magnesium, and calcium, certainly adds to a more premium feel.

Comparing it to other similar products in the market, it's evident that while you might find cheaper alternatives, they might not offer the same comprehensive nutritional profile or added minerals. The fact that this product provides 24g of protein per 34g serving, with the added benefit of essential minerals, speaks to its quality.

It's worth noting though that the presence of artificial sweeteners and flavors might be a point of contention for some. That said, their inclusion here doesn't necessarily detract too greatly from the product's overall value, but it's something to be aware of.

While Optimum Gold Standard Casein might come with a slightly higher price tag than some other options, its value is evident in its ingredient list and the benefits it offers. It's a quality product from a reputable brand that seems to justify its price, especially for those who prioritize quality and effectiveness.

Conclusion

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ON Gold Standard Casein doesn't disappoint and aligns well with the reputation for effectiveness and dependable quality from Optimum Nutrition. Its primary ingredient, micellar casein, offers the benefit of slow digestion, ensuring a steady release of amino acids for muscle recovery during extended periods. The added minerals, such as zinc and magnesium, further enhance its nutritional profile, making it more than just a protein supplement.

When stacked against the competition, this product holds its own, especially in terms of protein content and quality. The 24g of protein per 34g serving is pretty decent, and the low carb and fat content make it suitable for various dietary needs. We think Optimum Gold Standard Casein emerges as a strong contender when looking for a dependable casein protein source.

Optimum Gold Standard Casein

Where to buy?

We recommend Amazon, as they consistently provide the best prices and quickest shipping.

Buy on Amazon
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