Components of whey proteins and their benefits 

If you’re considering improvements to your food or drink formulations, you should learn more about the components of whey protein.  

Whey protein offers major benefits to the body. It’s a high-quality nutrient that provides essential amino acids, which the body can easily absorb.  

Benefits include rapid muscle recovery and growth. Whey protein can also activate the body's defense mechanisms against disease and improve the response of the immune system.  

The 5 main components of whey protein    

1 - Beta-lactoglobulin  

It is the most abundant fraction in whey protein, making up between 50 and 55% of its total composition.  It’s a source of essential amino acids including branched chain amino acids, or BCAAs, that prevent muscle breakdown. Beta-lactoglobulin is obtained from whey protein-rich foods and supports muscle building after resistance exercises.

2 - Alpha-lactalbumin  

Alpha-lactalbumin is the second most abundant component in whey protein, making up 20 to 25%. It is high in tryptophan with potential benefits that include an increase in serotonin production, sleep regulation and mood improvement under stress. It’s the main protein in human breast milk.    

3 - Glycomacropeptide  

Glycomacropeptide can constitute up to 15% depending on the purity of the whey protein. It’s a peptide formed in the process of cheesemaking. It helps to prevent dental cavities and causes a feeling of fullness that can help with weight control, among other bioactive properties.    

4 - Immunoglobulins  

Immunoglobulins provide immunity enhancing benefits to infants and others. They constitute between 10 and 15% of whey protein.  

5 - Bovine Serum Albumin (BSA)  

It represents 5 to 10% of whey protein. It’s rich in essential amino acids, reduces the absorption of cholesterol and has other bioactive properties.  

Other components of whey protein include: lactoferrin, lactoperoxidase and lysozyme, all three are found in amounts of 0.5% to 2. Lactoferrin regulates the absorption of iron and inhibits the growth of bacteria and fungi. Lactoperoxidase is a natural antibacterial agent. There is evidence that lysozyme helps boost the immune system, and has strong antibacterial properties.

To learn more about whey protein, go to agropur.com/us for additional information.