However, the whey protein in breast milk is actually made up of several different proteins, with one protein predominating – alpha-lactalbumin (alpha-protein). Alpha-protein makes up only 4% of cows’ milk protein. Alpha-protein in breast milk plays a key role in development and growth and is a source of essential amino acids, which are the building blocks of protein and are used by the body to repair muscles and tissues.
With SMA Gold, we have increased the amounts of alpha-protein from 11% of true protein to 19%, bringing the balance between the whey proteins closer to the balance naturally found in breast milk.