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WHEY PROTEINS
Features & Benefits
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Good source of branched-chain amino
acids (BCAAs), plus all essential amino acids
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Improves muscle performance and body
composition
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Supports healthy antioxidant levels
and promotes healthy immune function
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Green-Whey Pro-96™ contains
antioxidant carotenoids and flavonoids
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Promotes normal cell growth and
inhibits abnormal cell growth
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Supports healthy blood pressure and
normal cholesterol and triglyceride levels
Facts About Whey Protein:
Whey is a major protein in milk. Cheese
making produces liquid whey as a by-product. Whey protein is comprised
primarily of simple proteins called lactoglobulins. Whey also contains
some serum (blood) globulins including alpha-globulin, beta-globulin,
gamma-globulin and immunoglobulins, which are the primary
immune-system-stimulating features of whey.
Other components of whey protein
include: enzymes, minerals, iron binding proteins, and vitamins, including
B-12.1 Whey transits the stomach quickly 2 and the nutrients are rapidly
absorbed in the human intestine. Casein (another milk protein), on the
other hand, leaves the stomach slowly since it tends to "clot" in the
stomach.3 Humans digest whey more easily than casein because it’s more
natural for us; human milk contains more whey than casein.
Whey protein, often referred to as
lactalbumin, is currently a preferred protein source for many endurance
and strength athletes, who may require over twice the current daily
recommended protein intake.4,5 In one trial, a whey-based supplement given
to men and women for three months increased muscle performance, while
those taking a placebo saw no improvement.6 In a study of weight-loss
using a low-calorie diet and strength training, adding whey protein to the
diet resulted in similar weight loss but greater reductions in body fat
while preserving lean body mass.7 Whey has been shown to promote growth in
experimental animals, low birth-weight infants, and burn victims.8,9,10,11
BCAAs:
Athletes who are undergoing, or have undergone, intense prolonged exercise
receive much of their energy from branched-chain amino acids (BCAAs)—leucine,
isoleucine, and valine. These amino acids are unique in their ability to
provide a ready and direct energy source to skeletal muscle during
endurance exercise.12 An adequate dietary supply of BCAAs is needed during
exercise to prevent unwanted muscle breakdown, or catabolism, and to help
maintain cells.13 Whey is considered to be an excellent source of BCAAs,
as well as the important sulfur amino acids methionine and cysteine.
Antioxidants & Protein:
Glutathione is a powerful antioxidant involved chiefly in
liver detoxification. Research has indicated free-radical production
normally results from the rise in oxygen consumption with exercise, and
that glutathione levels can decrease with exercise.14,15 Some researchers
think that an increased intake of antioxidants like glutathione might
protect athletes against minor muscle injuries.16 Whey protein
supplementation in humans has been shown to increase blood levels of
glutathione.17
Enhancing glutathione and antioxidant
function is one of many ways whey protein supports normal immune function;
other mechanisms are just beginning to be understood.18,19,20 One
beneficial effect of whey on immune function is its ability to directly
inhibit potentially harmful gastrointestinal bacteria.21,22 Also, some
whey proteins appear to be able to help regulate normal cell growth and
prevent abnormal cell growth,23,24,25,26,27,28 and may be superior even to
soy protein in these beneficial effects.29
New Benefits for Whey
: Recent research has discovered components of whey protein
that may support heart health by promoting proper blood pressure
regulation 30,31,32,33 and by protecting the body from unhealthy forms of
cholesterol.34 In a placebo-controlled study, beverages containing whey
protein used by adult men for eight weeks promoted normal levels of blood
pressure, blood triglycerides and HDL ("good") cholesterol.35
Maintaining healthy bones may also be a
benefit of whey protein. Some whey components besides calcium have been
found to inhibit the action of bone-resorbing cells 36 and promote the
action of bone-building cells.37
Healthy brain function depends on a
normal supply of amino acids, some of which are converted into important
brain chemicals. Whey protein contains tryptophan, which the brain uses to
make serotonin, a neurotransmitter involved in regulating mood and coping
with stress. One group of volunteers was given a whey protein supplement
or a placebo in a double-blind trial. The whey protein increased blood
tryptophan levels and helped these people maintain a healthy mood while
under stress.38
Ingredient Highlights:
Whey is a complete animal source protein
comprising all eight essential amino acids. It has been given the highest
possible Protein Digestibility Corrected Amino Acid Score (PDCAAS) (1.0).
This score is an indication of the quality of a protein and is the
foundation for the determination of the FDA’s Daily Reference Value of
protein (50 grams). Egg and milk proteins, as well as soy isolate, rank
the highest in protein content, surpassing all other sources.
Healthy Whey™
is a great tasting, sugar-free, protein with a natural vanilla flavor.
Green-Whey Pro-96™ starts with that same great tasting, sugar-free,
protein and adds a food base of Hawaiian Spirulina algae ("Kona pure"),
psyllium seed husk, apple pectin, oat fiber, lemon bioflavonoids, kelp,
barley grass and the digestive enzymes bromelain (from pineapple) and
papain (from papaya).
These additional ingredients provide a
nutritious and all-natural combination of protein, fiber, minerals, and
phytonutrients including carotenoids. These phytonutrients are the source
of natural food colors (pigments) and have been studied extensively for
their value. The more intense the color, the more beneficial the food.
Maintaining high levels of carotenoids in body tissue helps to encourage
healthy cell membranes. While carotenoids are fat-soluble, flavonoids are
water-soluble, and have similar antioxidant properties.39,40,41
Safety & Contraindications:
Whey has a long historical record as a safe food for
lactose-tolerant people. While the possibility of food allergies from
whey has to be considered, it has been found to be far less allergenic
than the milk protein casein, and possibly less allergenic than soy or
egg-based protein supplements.42 All whey proteins contain some lactose.
Nature’s Life uses production methods that yield whey with 5% lactose.
The bovine serum albumin (BSA) component of whey has
been implicated as a possible trigger for insulin-dependent diabetes
mellitus (IDDM) in children. A similarity exists between the amino acid
sequence of the beta cell protein found in the pancreas, and BSA. It has
been proposed that partially digested fragments of BSA stimulate the
immune system that then incorrectly destroys beta cells.43 Currently, the
exact nature of the relationship between BSA and IDDM remains unclear.
Until more is known, whey supplementation in infants and young children
should probably be avoided. As with all food concentrates,
consultation with health practitioners is recommended.
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