Protein is used in the production of skin, hair, muscles, and bones, and for the manufacture of hormones, enzymes, cellular messengers, nucleic acids, and immune system components. Without adequate protein, your body cannot put together the structures that make up your cells, tissues, and organs, nor can it generate the biochemical substances needed for cardiovascular function, muscle contraction, growth, and healing.
Despite the prime importance of protein for life, few scientists have looked into its role in achieving optimal health and longevity; nor have they compared the effects of different types of protein on health and
longevity. In recent years, there has been a great deal of research into the effects of vegetables, fruits and whole grains (and the nutrients in these foods) on immune function, neuroendocrine function, health
maintenance, protection against disease, energy production, stamina and endurance, sexual function, and the ability to extend life span.
Researching The Health Benefits Of Protein
In recent years, scientists have begun to investigate the ability of certain types of protein to improve immunity, prevent diseases, and extend lifespan. They've discovered that these proteins can have profound
effects on the metabolism of both animals and humans. In particular, they've begun to focus their attention on a particular protein found in all milks called whey, which is processed to transform it into whey protein
concentrate (WPC) powder.
What Is Whey Protein?
Cow's milk contains about 6.25% protein. Of that, 80% is casein and the remaining 20% is whey. Traditionally, the term "whey protein" describes the milk proteins that remain after cheese is made from the casein in milk. Whey protein is comprised of four major protein fractions and six minor protein fractions. The major protein fractions in whey are beta-lactoglobulin, alpha-lactalbumin, bovine serum albumin, and
immunoglobulins. Each of these components have important disease-fighting effects.
The liquid whey protein derived from milk must go through many processing steps before it is turned into whey protein concentrate. This processing includes partial predigestion; enzyme hydrolysis; ultrafiltration
and dia-filtration to remove lactose (milk sugar) and fat; reverse osmosis to separate different sized molecular specks of whey; two ion-exchange processes; and high-speed air drying at low temperatures to avoid denaturing the protein components of whey. Scientists have found that only un-denatured whey protein has disease-fighting benefits!