Optimum Nutrition Gold Standard 100% Casein



What Is It? 

  • Optimum Nutrition Gold Standard 100% Casein is a high quality slow digesting whey protein powder.
  • Casein, similar to whey, is derived from a milk protein source. It has been shown to stay longer in the digestive tract thus the amino acids can be absorbed slowly. For this reason casein is commonly taken a few hours before bed or during a prolonged period of time where you are unable to get nutrients in, giving the body sufficient time to take in all the amino acids.

Optimum Nutrition Gold Standard 100% Casein Benefits

  • 24 grams of instantised slow digesting casein proteins
  • Rich in highly anti-catabolic agents
  • Over nine grams of BCAAs, glutamine and precursors per scoop
  • Increase muscle repair & recovery
  • Perfect to keep you catabolic during long periods of time without food
  • Can assist with losing unwanted body fat

When Do I Take It?

  • Because full digestion of 100% Casein takes between 6 to 8 hours, it is best used when you will experience a prolonged period of time where you're not able to eat a wholefood meal such as before bed, through the day etc.. Simply mix the powder with water in a Supps42 shaker, shake it up, and drink away!
  • We will mention that Casein is a lot thicker than normal whey protein so use more water than what you normally would!


  • 909g - $64.95 (Includes Free Express Shipping!)
  • 1.8kg - $99.95 (Includes Free Express Shipping!)


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