You have no items in your shopping cart.


Optimum Nutrition Gold Standard Casein

Be the first to review this product & Earn Points

Quick Overview

- Micellar casein formula enhanced with digestive enzymes
- 10 grams of essential amino acids per serve
- Casein, Slow digesting protein to fuel and recover muscle
- Nighttime use before bed, before & between meals

Optimum Nutrition Gold Standard Casein

Optimum Nutrition Gold Standard 100% Casein

Fast digesting protein is usually taken about an hour before & then straight after exercise for the best muscle support. Where its recommended to take slower digesting & absorbing protein at other times, generally between meals and ideally at bedtime when your body repairs itself and needs the fuel. 

Optimum Nutrition's formula sets the standard for slow digesting protein support. By using only premium micellar casein as a protein source, Gold Standard 100% Casein can take more than twice as long to be broken down into its amino acid subcomponents.

- World renowned Micellar Casein
- Very Low Sugar, fat & carbs
- 75% percent protein by weight
- 24G of Slow-Digesting Micellar Casein Protein per 32G Serve
- 10 Grams of BCAAs (Leucine, Isoleucine and Valine), Glutamine & Glutamic Acid per Serve
- Ideal for Between Meals during the day and Before Bed

What is micellar casein?

Micellar Casein is separated from milk using an ultrafiltration process. It has the ability to gel during digestion to slowly release amino acids, making it the slowest digesting form of casein.

Serving Infomation Vanilla
Serving Size 1 Heaped Scoop 33g
  Amount Per Serving
Calories 120
Calories From Fat 10
Total Fat 1g
Saturated Fat 0.5g
Trans Fat 0g
Cholesterol 15mg
Sodium 240mg
Total Carbohydrate 3g
Dietary Fiber 1g
Sugars 1g
Protein 24g
Ingredients: Micellar Casein, Natural And Artificial Flavors, Inulin, Salt, Gum Blend (Cellulose Gum, Xanthan Gum, Carrageenan), Lecithin, Sucralose, Aminogen®, FD&C Yellow #5
Allergen Information: Contains Milk, Wheat, And Soy (Lecithin) Ingredients.

Serving size: 33g - 1 heaped scoop
Directions: Mix 1 serve with 250-350ml of water or milk in a shaker or blender & mix for 10-20 seconds.


Single Serving
33 g
per container
1 Standard Serve
Protein 660g 
Carbs 82g 
Serving Costs 907g
1 Standard Serving $1.56
2 Standard Serves Per Day $3.12
3 Standard Serves Per Day $4.68
Per 100g $4.73
Serving Contents Protein Carbs
1 Standard Serving 24g 3g
2 Standard Servings Per Day 48g 6g
3 Standard Servings Per Day 72g 9g
Per 100g 73g 9g