Why use protein?
The use of protein for muscle synthesis should be isolated to one type of protein -
whey. Whey protein is the watery by-product of cheese-making that is left after
milk has been curdled. It's the protein-rich liquid increasingly in demand for its ability
to curb appetite.

Whey is available in dried form as a nutritional supplement, but it also exists
naturally in foods too. It is, for example, the source of ricotta cheese. Although
whey has a long history as a drink in its own right, and was championed as far back
as Hippocrates, exploration of its potential as a natural appetite suppressant, body
reshaper, and metabolic protector is just getting under way.


Bottled water enriched with whey
protein may be the drink of the
future - a painless means of
weight control. New Zealand
researchers found that even small
amounts of whey dissolved in
water and consumed two hours
before lunch reduced hunger in
overweight women. All 46
participants reported feeling more
full and satisfied than after
consuming a whey-free control
drink. The greater the
concentration of whey, the stronger
and longer the effect. Although
none of the women ate less lunch
two hours later, higher whey
doses may thwart dessert
consumption.


Whey has staying power in
maintaining healthy body weight.
The high-protein substance not
only minimizes weight gain and
body fat accumulation over the
long haul, but it decreases food
intake and ups the oxidation of
fats. Rats fed a diet high in whey
protein consumed significantly
less food than rats gobbling down
soy protein, although it took five
weeks for the effect to show up.
Rich in the amino acid leucine,
whey may alter brain synthesis of
neuropepetides that regulate food
intake. However, the rats' diet was
one-third whey. Even dedicated
dieters might not be able to
manage that.


There is increasing evidence that
the  microorganismsknown as
probiotics do good things for the
gut (and the brain and the rest of
the body), but they have to get
there alive first. That means
surviving the harsh, acidic killing
field otherwise known as the
stomach. Whey protein may turn
out to be the perfect armoured
vehicle for the job. Irish
researchers found that
microbeads of whey filled with the
probiotic
lactobacillus rhamnosus
can withstand the hostile
environment of the stomach and
arrive intact at the intestines,
where they dutifully break down
and release their payload.


Whey protein supplements appear
to spare the overweight from the
negative metabolic consequence
of a high-fat diet. University of
Cincinnati researchers fed female
mice a high-fat diet and either
plain water or whey-enriched
water. Both groups downed the
same amount of food, but after 11
weeks the whey takers weighed
less and had more lean body
mass. Moreover, they handled a
glucose load better and showed
better insulin sensitivity, and their
livers accumulated less fat. For
those who cannot resist french
fries, whey protein may help stave
off Type 2 diabetes and fatty liver
disease.


Adding whey protein to your diet
can shrink your waist and may
even help regulate body weight
without the need for dieting. Twice
a day for six months, 90
overweight men and women drank
beverages mixed with either whey
protein, soy protein or
carbohydrates while eating as
usual. After 23 weeks scientists
report in the
Journal of Nutrition,
both whey and soy drinkers
weighed less than the carb
drinkers, but the whey group also
had smaller waists. The findings
suggest that in curbing
accumulation of belly fat, whey
may subdue the metabolic
complications of obesity.
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