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Product Rating

Overall: 5.2/10
Effectiveness: 5/10
Value: 7/10
#Reviews: 1

Flavour Rating

Overall: 5/10
French Vanilla: 5.0/10

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Optimum Nutrition

Optimum Gold Standard 100% Natural Casein Protein

Vitamart Price:  $69.97
Quantity (2 available) 
In Stock
Frequently Bought Together For Only $74.94
Optimum Gold Standard 100% Natural Casein Protein
Optimum Gold Standard 100% Natural Casein Protein

+ Progressive VegeGreens Powder (Vegan)
Progressive VegeGreens Powder (Vegan)

Buy Together for only $74.94

Optimum 100% Natural Casein Details

  • 24 g of Instantized, Slow-Digesting Micellar Casein
  • Rich in Highly Anti-Catabolic Micellar Casein
  • No Artificial Flavors, Sweeteners, or Synthetic Colors
  • Over 9 g of BCAAs, Glutamine, and Glutamine Precursors per Scoop
  • Aminogen Enhanced

Natural Slow Digesting, Anti Catabolic Miceller Protein!

Rapid protein use is desirable immediately before and after exercise to help refuel recovering muscles, but delayed digestion and absorption may be more beneficial at other times - including bedtime when your body typically goes for hours without food. Casein proteins are sensitive and tend to thicken in the stomach. Because of this, it can take more than twice as long for our Gold Standard Natural 100% Casein to be broken down into its amino acid subcomponents than other proteins. Gold Standard Natural 100% Casein is also free of artificial flavors, sweeteners, and synthetic colors and uses only premium micellar caseins to create a protein that's truly time-released.

Optimum Gold Standard 100% Natural Casein Protein Reviews*

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Product rating*

Product Rating: 5.2/10

Customer Reviews*

  • 5.2/10  Good value, thick protein powder

    By Javier on Thursday, January 17, 2019 01:28 PM

    Effectiveness: 5/10

    (+) Builds Muscle,Good Value
    (-)  Gives Me Gas,Mixes Poorly,Very fine powder it flies everywhere

    How did you use it?:Before Bed

    "Casein is a dairy byproduct recommended for those who do High Intensity Interval Training or long-distance running / steady state cardio for lengthy periods of time, it is less about muscle-building and more about preventing muscle loss. It also helps with fullness so certain people may use it for weight loss.

    This product makes me feel less full than other casein products I have tried (from Naked nutrition and the Quest Mix), and the taste is okay but I am sure there is stevia or another type of sweetener included.

    Please note you will need roughly 50% more water/yogurt/fruit for this to mix properly. And also, if you like cottage cheese the dry curd type has pretty much the same amount of casein per gram, so this is more for convenience than nutrition."

    Would you buy this product again? Yes

    Flavours Rating
    French Vanilla   5
    Verified by Vitamart Purchaser

    Was this review helpful?  Yes   No  

*Review Disclaimer: Not everyone has these results. Product experiences vary from person to person. Please use these reviews for information only as they have not been reviewed by a medical professional. Do not substitute the informatioin in the reviews for advice from your physician or other health care professional or any information contained on or in any product label or packaging.

Suggested Use

Add one rounded scoop of Optimum 100% Natural Casein Protein to 10-12 oz of water, milk, or your favorite beverage.

Nutrition Facts
Serving Size: 1 Scoop
Servings per Container: 24
Amount Per Serving
% Daily Value
Calories  140  
    Calories From Fat  15  
Total Fat  1.5 g 2%
    Saturated Fat  0.5 g 3%
    Trans Fat  0 g  
Cholesterol  20 mg 7%
Sodium  270 mg 11%
Total Carbohydrate  8 g 3%
    Dietary Fiber  1 g 4%
    Sugars  4 g  
Protein  24 g 48%
Vitamin A    0%
Vitamin C    0%
Calcium    40%
Iron    2%
* Percent daily values are based on a 2000 calorie diet
  † Daily Value not established
Note: Serving Sizes are rounded to the nearest whole serving

Additional Ingredients: Micellar Casein, Cocoa (Processed with Alkali), Natural Flavors, Honey Powder, Evaporated Cane Juice, salt, Lecithin, Cellulose Gum, Reb A (Natural Stevia Leaf Sweetener).


Warning: n/a

Product Disclaimer

The products and the claims made about specific products on or through this site have not been evaluated by or the Canadian Food and Drug Administration and are not approved to diagnose, treat, cure or prevent disease. The information provided on this site is for informational purposes only and is not intended as a substitute for advice from your physician or other health care professional or any information contained on or in any product label or packaging. You should consult with a healthcare professional before starting any diet, exercise or supplementation program, before taking any medication, or if you have or suspect you might have a health problem. is not responsible for any statements or claims that various manufacturers make about their products or the general information provided for each product on this website. We cannot be held responsible for typographical errors or product formulation changes. Please consult with your own physician or health care practitioner regarding the suggestions and recommendations made at and especially before using any product sold on this website.