GOLD STANDARD 100% CASEIN
Faster digesting amino acids are desirable immediately before and after exercise to help refuel recovering muscles, but slow digestion and absorption may be more beneficial at other times – including bedtime when your body typically goes for hours without food.*

Casein proteins are acid sensitive and thicken in the stomach. Compared to some other proteins, it can take more than twice as long for Gold Standard 100% Casein to be broken down into its amino acid subcomponents. By using only premium micellar casein as a protein source, ON has created a formula that sets the standard for slow digesting protein support.

BEYOND THE BASICS:
Best-Selling Micellar Casein
75% Protein by Weight (24G of Protein per 32G Serving Size)
24 Grams of Slow-Digesting Micellar Casein per Serving
Over 5 Grams of BCAAs (Leucine, Isoleucine and Valine) per Serving
Nearly 5 Grams of Glutamine & Glutamic Acid in Every Scoop
Very Low Levels of Fat, Sugar & Carbohydrates
Ideal for Use Between Meals and Before Bed

WHAT IS MICELLAR CASEIN?
Micellar Casein is the slowest digesting form of casein. It is separated from milk through an ultrafiltration process. One of Micellar Casein’s unusual properties is its ability to gel during digestion so it can release a steady flow of amino. 

Ingredients