Whey Protein - Does It Really Work?
By: Bruce Brightman - LifeSource Vitamins
Whey protein (the highest quality and best form of protein) is an amazing
supplement. Whey Protein provides the body with the necessary building
blocks to produce amino acids that are used for building muscle tissue.
Nearly every bodybuilder knows the importance of protein supplementation.
Studies have been conducted that compare whey protein to numerous other
sources. They have found that whey protein contains the perfect combination
of overall amino acid makeup... and in just the right concentrations for
optimal performance for the human body. Both hormonal and cellular
responses are greatly enhanced with the supplementation of whey protein.
Not to mention the benefits
has on the body's immune system according to documented scientific
research. Whey protein has also shown to play a role as an antioxidant and
helps support a healthy immune system. Most importantly, consistent whey
protein intake coupled with exercise will result in consistent muscle
is very important for bodybuilders, dieters, and just about everybody!
Since athletes and bodybuilders work out often, protein levels become
depleted. By being a direct precursor to building muscle and essential
amino acids, such as glutamine (a muscle enhancer, endurance builder, and
muscle deterioration reducer), the content from high-quality whey protein
not only can but will help one's muscles recover and grow faster by
bringing up the levels of protein. With dieting and those wishing to lose
some extra fat, whey protein can be very useful because a good intake of
protein balances blood sugar levels, while carbohydrates cause blood sugar
levels to fluctuate. When the blood sugar levels stay balanced, one is not
as prone to rampant eating and has more energy and greater fat loss. Whey
protein allows a person to control his or her diet effectively. Most people
who want to change their body for the better could benefit from whey
Whey protein has become a staple supplement for most bodybuilders and other
athletes, and for good reason: it's a great protein with a wide variety of
benefits. Whey has more recently caught on with the
anti-aging/longevity-minded groups also.
A growing number of studies has found whey may potentially reduce cancer
rates, combat HIV, improve immunity, reduce stress and lower cortisol,
increase brain serotonin levels, improve liver function in those suffering
from certain forms of hepatitis, reduce blood pressure, and improve
performance, to name a few of its potential medical- and sports-related
applications. Whey also has an exceptionally high biological value rating
and an exceptionally high Branch Chain Amino Acid (BCAA) content.
One of whey's major effects is its apparent ability to raise glutathione
(GSH). The importance of GSH for the proper function of the immune system
cannot be overstated. GSH is arguably the most important water-soluble
antioxidant found in the body.
The concentration of intracellular GSH is directly related to lymphocyte's
(an important arm of the immune system) reactivity to a challenge, which
suggests intracellular GSH levels are one way to modulate immune function.
GSH is a tri-peptide made up of the amino acids L-cysteine, L-glutamine and
glycine. Of the three, cysteine is the main source of the free sulfhydryl
group of GSH and is a limiting factor in the synthesis of GSH (though the
effects of whey on GSH is more complicated than simply its cysteine
Because GSH is known to be essential to immunity, oxidative stress, and
general well being, and because reduced levels of GSH are associated with a
long list of diseases, whey has a place in anyone's nutrition program.
Reduced GSH is also associated with over training syndrome (OTS) in
athletes, so whey protein may very well have an application in preventing,
or at least mitigating, OTS.
Pertaining directly to athletes, some recent studies suggest that
wheyprotein may have direct effects on performance and muscle mass, but
this research is preliminary at best. Some studies have found oxidative
stress contributes to muscular fatigue, so having higher GSH levels may
allow you to train longer and harder, as some recent data suggests.
See All LifeSource Vitamins Whey Protein Products, Articles, and
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