Pro-96™ Soy Proteins
High energy vegetarian protein
Highlights
-
Soy
Protein Isolate has the highest bioavailability possible
-
No
Cholesterol, No Sugar, No Saturated Fat
-
Contains
antioxidant carotenoids and flavonoids
-
Provides
an average of 72 mg isoflavones per serving
-
Full range of amino acids
including Branched Chain
Features & Benefits
Protein
is composed of chains of amino acids and constitutes about 20% of our
total body weight. It functions as the structural material of muscles,
other tissues and organs, as well as important bi-substances such as
enzymes and many hormones. Protein is also converted to glucose and used
as a source of energy. When there is limited protein intake, the needs of
the organs take priority over the needs of the muscles. While other
nutrients are equally important, protein provides a key foundation for
good health.
Of
the vegetarian sources of protein, soybeans stand out. A protein isolate
of soy has a Protein Digestibility Corrected Amino Acid Score (PDCAAS) as
high as egg or milk protein; 1.0, the highest score possible in this U.S.
government protein quality rating system. PDCAAS is based on the amino
acid requirements for humans, and is the foundation for the determination
of the Daily Reference Value of protein (50 grams). Nature's Life Pro-96
protein powders provide almost half
(23 grams) of the Daily Reference Value (DRV) of protein in one serving.
Super-Green
Pro-96™, Phyto-Red Pro-96™ and Berry-Blue Pro-96™ meet or exceed the
amino acid requirements for children and adults.1
Included in the full range of essential and non-essential amino acids in
Pro-96 soy proteins, are significant amounts of essential branched-chain
amino acids (leucine, isoleucine, valine). These branched chain amino
acids are critical for building and maintaining muscle strength.
Humans
can use soy proteins as effectively as animal protein 2,3 and since soy doesn’t contain unwanted saturated fat and
cholesterol (as does most animal protein),4
it is a sensible choice for all health-conscious people.
Besides
high quality protein, soy also contains phytonutrients (plant source
nutrients)—such as isoflavones,
phytosterols, saponins and lignans. These phytonutrients play many
important roles in supporting good health.5,6,7
Three
isoflavones (genistein, daidzein
and glycitein) are found in large amounts only in legumes such as soy.8
They are classified as phytoestrogens (natural plant estrogens) and have
antioxidant properties.9 Plant
estrogens compete with estrogens produced in the body or introduced from
the environment, and prevent them from binding to estrogen-receptor cells.10,11
The benefit is that the weak soy phytoestrogens are preferentially
absorbed and used instead of stronger, potentially damaging, estrogens.12,13
A recent study found that a soy protein supplement with high
isoflavone content was effective in helping women going through menopause
maintain normal temperature sensation.14
Eating
foods high in saturated fat and cholesterol may increase serum cholesterol
levels and in turn, increase the risk of heart disease. Nature’s
Life’s Pro-96™ soy proteins contain no cholesterol and no
saturated fat.
An
analysis of soy protein isolate at the Veterans Affairs Medical Center
indicates that soy protein isolate can help maintain healthy serum
cholesterol levels.15 Other
studies have reported that replacing animal protein with isolated soy
protein helps maintain healthy levels of both LDL ("bad") and
HDL ("good") cholesterol.16,17,18
The Safety of Soy
Questions linger about the benefits of certain
soy constituents. For instance, protease
inhibitors are enzymes found in soybeans and other legumes, and can
prevent the body from completely digesting proteins. If consumed in large
amounts, as in raw beans, they can lead to protein malnutrition. For the
most part, protease inhibitors are destroyed by heat and because
Nature’s Life soy protein isolate is heat-processed, protease inhibitors
do not significantly affect nutrient absorption.
Another so-called “anti-nutrient” in soy
is phytic acid, a plant fiber
which binds to certain minerals and can prevent their absorption. Again,
good qualities are being discovered for this soy constituent: phytic acid
(also called inositol hexaphosphate or IP6) is an effective scavenger of
free radicals.19 For example,
when phytic acid binds to excess iron in the body, it prevents the
formation of iron oxide, which is one of the more damaging free radicals.20
Other
Natural Ingredients
All Pro-96 proteins start with the same food
base of soy protein isolate, lecithin, psyllium seed husk, apple pectin,
oat fiber, and the digestive enzymes bromelain (from pineapple) and papain
(from papaya). Nature’s Life also adds carotenoids and flavonoids to the
Pro-96 protein powders. 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. Carotenoids have
free-radical scavenging properties, as well as offering support to the
immune system.21,22,23
Maintaining high levels of carotenoids in the tissue helps to encourage
healthy cell membranes. While carotenoids are fat-soluble, flavonoids are
water-soluble, and have similar antioxidant properties.24,25,26
Super-Green
Pro-96™ adds Kona pure Hawaiian Spirulina algae, with
naturally-occurring amino acids, minerals, chlorophyll and carotenoids. In
addition, we add lemon bioflavonoids, kelp and barley grass. These
additional ingredients provide a highly nutritious combination of protein,
fiber, minerals, and phytonutrients like carotenoids.
Carotenoids such as lycopene, found primarily
in tomatoes, can be found in Phyto-Red
Pro-96™. Recent research supports the protective, anti-oxidant
properties of lycopene.27,28 In
addition to lycopene, Phyto-Red Pro-96™ has other carotenoid- and
flavonoid-rich red foods in its Phyto-Red Blend™: raspberries, cherries
and red bell pepper.
As with carotenoids, some flavonoids have very
specific benefits, such as those found in Berry-Blue
Pro-96™. Grape, bilberry and blueberry make up the Phyto-Blue
Blend™ in Berry-Blue Pro-96™. The flavonoids in these foods are called
anthocyanidins (or OPCs), and have been studied for their supportive
benefits as antioxidant free-radical scavengers.29,30,31,32,33
References
-
Scrimshaw,
NS and Young VR. Soy protein in adult human nutrition. In: Wilcke H.L.,
Hopkins D.T., Waggle D.H., eds. Soy Protein and Human Nutrition,
Academic Press, Inc., New York, NY, pp. 121-48, 1979.
-
Subcommittee on the tenth
edition of the RDA’s Food and Nutrition Board. Recommended Dietary
Allowances, Tenth Revised Edition, FNB/NAS, National Academy Press,
Washington, D.C., 1989:56-8.
-
Wayler
A, et al. Nitrogen Balance Studies in Young Men to Assess the Protein
Quality of an Isolated Soy Protein in Relation to Meat Proteins. J
Nutr. 1983;113:2485-2491.
-
Energy
and Protein Requirements, 1985. Report of a joint FAO/WHO/UNI
consultation. World Health Organization Technical Report series 724.
-
Friedrich
JA. Protective and regulatory benefits of soy: clinical perspectives. Altern
Complementary Ther 1997(Feb):53-58.
-
Potter
SM. Soy protein and cardiovascular disease: the impact of bioactive
components in soy. Nutr Rev 1998;56:231-35.
-
Rao
AV, Sung MK. Saponins and anticarcinogens. J Nutr. 1995;125 (3 suppl):717S-724S.
-
Setchell
KDR. Phytoestrogens: the biochemistry, physiology and implications for
human health of soy isoflavones. Am
J Clin Nutr 1998;68(suppl):1333S-46S.
-
Lichtenstein
AH. Soy protein, isoflavones and cardiovascular disease risk. J
Nutr 1998;128:1589-92.
-
Noteboom,
WD, and Gorski J. Estrogenic effect of genistein and coumestrol
diacetate. J Endocrinl 1963;73:736-43.
-
Zava
DT, Duwe G. Estrogenic and antiproliferative properties of genistein
and other flavonoids in human breast cancer cells in vitro. Nutr Cancer. 1997;27(1):31-40.
-
Martin,
PM, et al. Phytoestrogen interaction with estrogen receptors in human
breast cancer cells. J
Endocrinol 1978;103:1860-7.
-
Adlercreutz,
H, et al. Dietary phyto-oestrogen and the menopause in Japan. Lancet
1992;339:1233.
-
Albertazzi
P, Pansini F, Bonaccorsi G, et al. The effect of dietary soy
supplementation on hot flushes. Obstet
Gynecol 1998;91:6-11.
-
Anderson,
JW, et al. Meta-analysis of the effects of soy protein intake on serum
lipids. N Eng J Med 1995;333:276-82.
-
Potter
SM, Baum JA, Teng H, et al. Soy protein and isoflavones: their effects
on blood lipids and bone density in postmenopausal women. Am J Clin Nutr 1998;68:1375S-79S.
-
Wong
WW, Smith EO, Stuff JE, et al. Cholesterol-lowering effect of soy
protein in normocholesterolemic and hypercholesterolemic men. Am J Clin Nutr 1998;68:1385S-89S.
-
Wang
MF, Yamamoto S, Chung HM, et al. Antihypercholesterolemic effect of
undigested fraction of soybean protein in young female volunteers. J Nutr Sci Vitaminol 1995;41:187-95.
-
Graf,
E, and Eaton JW. Antioxidant functions of phytic acid. Free
Rad Biol Med 1990;8:61-9.
-
Nelson,
RL. Dietary iron and colorectal cancer risk. Free Rad Biol Med 1992;12:161-8.
-
Steinmetz
KA. Vegetables, fruit and cancer prevention: a review. J
Am Diet Assoc. 1996;96(10):1027-39/
-
Jacob
RA and Burri BJ. Oxidative damage and defense. Am J Clin Nutr. 1996;63(6):985S-990S.
-
Tsuchihashi
H, Kigoshi M, Iwatsuki M, Niki E. Action of beta-carotene as an
antioxidant against lipid peroxidation. Arch
Biochem Biophys. 1995;323(1(:137-47.
-
Rice-Evans
CA, et al. The relative antioxidant activities of plant-derived
polyphenolic flavonoids. Free
Radic Res.
1995;22(4):375-83.
-
Rice-Evans
CA and Miller NJ. Antioxidant activities of flavonoids as bioactive
components of food. Biochem Soc
Trans 1996;24:790-795.
-
Havsteen
B. Flavonoids, a class of natural products of high pharmacological
potency. Biochem Pharmacol.
1983;32(7):1141-8.
-
Giovanucci
E. Tomatoes, Tomato-Based Products, Lycopene, and Cancer: Review of
the Epidemiologic Literature. J
Nat. Cancer Inst. 1999;91:317-31.
-
Gann
PH, Giovanucchi E, et al. Lower prostate cancer risk in men with
elevated plasma lycopene levels: results of a prospective analysis. Cancer Res. 1999;59(6):1225-30.
-
Bagchi
D, et al. Oxygen free radical scavenging abilities of vitamins C and
E, and a grape seed proanthocyanidin extract in vitro. Res Commun Mol Pathol Pharmacol. 1997;95(2):179-89.
-
Ames
BN, Shigenaga MK, and Hagen TM. Oxidants, antioxidants, and the
degenerative diseases of aging. Proc
Natl Acad Sci USA 1993;90:7915-1922
-
Tixier
J, et al. Evidence by in vivo
and in vitro studies that
binding of pycnogenols to elastin affects its rate of degradation by
elastases. Biochem Pharm
1984;33:3933-3939
-
Jonadet
M, et al. Flavonoids extracted from Ribes
nigrum L. and Alchemilla
vulgaris L.: 1. In vitro
inhibitory activities on elastase, trypsin and chymotrypsin. 2.
Angioprotective activities compared in
vivo. Journal de Pharmacologie 1986;17:21-27
-
Terrasse
J, and Moinade S. Premiers resultats obtenus avec un nouveau factuer
vitaminique P “les anthocyanosides” extraits du Vaccinium myrtillus. Presse
Med. 1964;72:397-400.
|
|
SOY - The Super
Food
Scientists have
discovered the growing number of ways in which soy supports good health.
Soy is finally beginning to receive the respect it has always deserved
as one of Mother Nature’s "miracle foods."
Soy
Protein Stands Out
The soy bean is packed
with good nutrition. For starters, soy is a great source of protein.
While other macro nutrients are also important, protein provides the
foundation for good health. Our body’s muscles, blood, enzymes,
hormones, skin and skeleton all depend on protein.
Soy proteins from
Nature’s Life® meet or exceed the amino acid requirements for
children and adults.1 The body can use soy proteins as effectively as
egg, meat or dairy protein.2 The protein isolate form of soy has a
Protein Digestibility Corrected Amino Acid Score (PDCAAS) as high
as egg or milk protein; 1.0, the highest score possible in this U.S.
government protein quality rating system. PDCAAS is based on the amino
acid requirements for humans, and is the foundation for the
determination of the Daily Reference Value of protein (50 grams). Since
soy doesn’t contain unwanted saturated fat and cholesterol (as animal
protein does),3 it is a sensible choice for health-conscious people.
Soy protein is also
good news for dieters. The high quality soy protein isolate found in
many of Nature’s Life protein products contains only one gram of fat
per serving and is free of cholesterol and lactose.
Phytonutrients
Complete the Picture
Protein is just the
tip of the iceberg, when it comes to the benefits of soy. Soy also
contains phytonutrients (plant source nutrients), such as isoflavones,
phytosterols, saponins, lignans and others. These phytonutrients
play many important roles in supporting good health.4 At Nature’s Life
we take special care to process our soy proteins with water, never
alcohol, to retain all these important nutrients.5
The isoflavones (genistein,
daidzein and glycitein) are unique because they are only found in
soy. The isoflavones in soy, especially genistein and daidzein, have
antioxidant properties.4 That is, they deactivate free radicals and
support the antioxidant defense system by increasing levels of other
antioxidant enzymes.4
Isoflavones are
classified as phytoestrogens, which means that they are natural
plant estrogens. Plant estrogens compete with estrogens produced in the
body or introduced from the environment and help prevent them from
binding to estrogen receptor cells.6 Similar to a broken key in a lock,
soy’s phytoestrogens do not open the lock, but neither do they allow
another estrogen "key" to operate the lock. Much like musical
chairs, there is a limited number of receptor cells: estrogens that don’t
bind to these cells eventually dissipate. The benefit is that soy
estrogens reduce the body’s vulnerability to the influence of
potentially damaging estrogens.
The weak
phytoestrogens in soy prove to be a viable substitute for the stronger
natural estrogens in their ability to influence sex hormones, protein
synthesis and cell proliferation and differentiation.7,8
Another health benefit
of soy isoflavones may be inhibition of angiogenesis9 (growth of new
blood vessels). Under normal circumstances, new blood vessels are formed
primarily during limited times, such as ovulation and pregnancy.
Abnormal cell growth is associated with angiogenesis, and recent
laboratory experiments suggest that soy genistein may inhibit this
abnormal process by reducing the formation of new blood vessels.9
Bile acids are
necessary and beneficial to help digest foods in the stomach. Excess
bile acids accumulated in the colon, however can cause abnormal changes
to DNA. Soy saponins bind to excess bile acids which increases
their excretion thus reducing their ability to damage DNA.9
Soy for a Happy
Heart
"You are what you
eat" certainly rings true for maintaining a well-running
cardiovascular system. Twenty-five grams of soy protein a day, as part
of a diet low in saturated fat and cholesterol, may reduce the risk of
heart disease. Most of Nature’s Life’s soy proteins contain 25 grams
of protein per serving. The Daily Reference Value (DRV) of protein for
active adults is 50 grams. Diets low in total fat, saturated fat and
cholesterol may also reduce the risk of heart disease. On the other
hand, eating foods high in saturated fat and cholesterol may increase
serum cholesterol levels and in turn, increase the risk of heart
disease. This is where soy comes in. Soy contains no cholesterol and
virtually no saturated fat. In addition, soy protein has been shown to
help maintain healthy levels of low-density lipoprotein (LDL, or
the "bad" cholesterol), and prevent peroxidation of LDL
cholesterol10 (which creates free-radicals).
An analysis of soy
protein research by Dr. James Anderson at the Veterans Affairs Medical
Center, indicates that soy protein can help maintain healthy serum
cholesterol levels.11 He theorized that soy phytoestrogens are the key
phytonutrients responsible for maintaining healthy cholesterol levels.11
In addition, saponins, abundant in soy foods, bind to cholesterol and
help to shuttle it out of the body.12
Recent studies
continue to support the theory that replacing animal protein with soy
protein helps maintain cholesterol at healthy levels.13,14 In fact, in
Italy, people with a family history of high cholesterol levels are given
soy protein free-of-charge.15
From Villains to
Stars
Certain constituents
in soy have been dubbed "anti-nutrients." For instance, protease
inhibitors are substances found in soy which can prevent the body
from completely digesting proteins. If consumed in large amounts, they
can lead to protein malnutrition. For the most part, protease inhibitors
are destroyed by heat and since soy is usually cooked, protease
inhibitors do not significantly affect nutrient absorption. Protease
inhibitors may also have some redeeming qualities. New research shows
that even the small quantities of protease inhibitors remaining in
cooked soy products may limit the uncontrolled growth of damaged
cells.16,17,18 Protease inhibitors also protect DNA from free-radical
damage.19
Another
"anti-nutrient" in soy is phytic acid, a plant fiber
component which binds to certain minerals and prevents their absorption.
Again, good qualities are being discovered for this soy constituent.
Phytic acid is believed to scavenge free-radicals.20 For example, when
phytic acid binds to excess iron in the body, it prevents the oxidation
of iron, which is one of the most damaging free radicals.21,22
The soy protein
isolate used in our protein products is currently being changed to certified
Non-GMO, also known as IP (Identity Preserved) soy protein
isolate — made from soybeans grown from seeds that are not genetically
modified. The gold seal shown here will help you recognize the products
that are already certified. Look for the seal on the front panel of
the label. Products without this seal still feature the high quality
SUPRO® Brand Soy Protein Isolate.
Why WHEY?
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.23,24 Whey is a major
protein in milk. 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-stimulating features of
whey.
Other components of
whey protein include: amino acids, enzymes, calcium, potassium, sodium,
phosphorous, iron binding proteins, and vitamins A, C, B-1, B-2, B-3,
B-5, B-12, folic acid, and biotin.25 Whey transits the stomach quickly
and the nutrients are rapidly absorbed in the human intestine. Nature’s
Life uses the whey protein production method that removes the most
lactose, leaving less than 1% in the final product. Our whey protein is
also FREE of recombinant Bovine Growth Hormone (rBGH), a hormone given
to cattle simply to increase their milk production.
Whey BCAAs
Whey serves as a
source of energy for athletes who are undergoing, or have undergone,
intense prolonged exercise. Much of this energy is thought to come
primarily 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.26 An adequate supply of BCAAs is needed during
exercise to prevent unwanted muscle breakdown, or catabolism.27 Whey is
considered to be an excellent source of BCAAs, as well as the important
sulfur amino acids methionine and cysteine.
Egg and milk products,
as well as soy isolate, rank the highest in protein content, surpassing
other animal sources.. Nature’s Life Healthy Whey™ has a PDCAAS of
1.0.
Jazzing Up Juice
Juicing fruits and
vegetables can be a healthy addition to the diet. One drawback, however,
is that fiber is removed during the juicing process, which results in
juice high in natural sugar.
Adding one or two
tablespoons of Nature’s Life protein products to fruit or vegetable
juice can slow the absorption of sugar and help maintain healthy blood
sugar levels.28,29 Not every protein powder brand helps delay sugar
absorption, since many brands contain up to 50 percent or more refined
or natural sugars which may adversely affect blood sugar levels.
Protein Recipes
The most popular use
for Nature’s Life Protein Powders is in flavorful blender drinks. But
they can also be used to increase the protein content of prepared foods.
Add as desired to casseroles, loafs, patties, stews, soups, baked goods,
pancakes, waffles, muffins, omelets and even sandwich spreads. Contact
us for a copy of our favorite protein recipes.
References
-
Scrimshaw NS and
Young VR. Soy protein in adult human nutrition. In: Wilcke HL,
Hopkins DT, Waggle DH, eds. Soy Protein and Human Nutrition,
Academic Press, Inc., New York, NY, pp. 121-48, 1979.
-
Subcommittee on
the tenth edition of the RDAs Food and Nutrition Board. Recommended
Dietary Allowances, Tenth Revised Edition, FNB/NAS, National Academy
Press, Washington, DC, 1989:56-8.
-
Energy and Protein
Requirements, 1985. Report of a joint FAO/WHO/UNI consultation.
World health Organization Technical Report series 724.
-
Cai Q and Wei H.
Effect of dietary genistein on antioxidant enzyme activities in
SENCAR mice. Nutr Canc 1996;25:1-7.
-
Naim M, et al.
Soybean isoflavones, characterization, determination, and antifungal
activity. J Agr Food Chem 1974;22:806-10.
-
Noteboom WD, and
Gorski J. Estrogenic effect of genistein and coumestrol diacetate. J
Endocrinl 1963;73:736-43.
-
Martin PM, et al.
Phytoestrogen interaction with estrogen receptors in human breast
cancer cells. J Endocrinol 1978;103:1860-7.
-
Adlercreutz H, et
al. Dietary phyto-oestrogen and the menopause in Japan. Lancet
1992;339:1233.
-
Fotis T, et al.
Genistein, a dietary-derived inhibitor of in vitro angiogenesis. Proc
Natl Acad Sci USA 1993;90:2690-4.
-
Kanazawa T, Osanai
T, Zhang XS, et al. Protective effects of soy protein on the
peroxidizability of lipoproteins in cerebrovascular diseases. J
Nutr 1995;125:2639S-646S.
-
Anderson JW, et
al. Meta-analysis of the effects of soy protein intake on serum
lipids. N Eng J Med 1995;333:276-82.
-
Rao AV and Sung
MK. Saponins as anticarcinogens. J Nutr 1995;125:717S-724S.
-
Potter SM, Baum
JA, Teng H, et al. Soy protein and isoflavones: their effects on
blood lipids and bone density in postmenopausal women. Am J Clin
Nutr 1998;68:1375S-79S.
-
Wong WW, Smith EO,
Stuff JE, et al. Cholesterol-lowering effect of soy protein in
normocholesterolemic and hypercholesterolemic men. Am J Clin Nutr
1998;68:1385S-89S.
-
Sirtori CR, Even
R, and Lovati MR. Soybean protein, diet and plasma cholesterol: from
therapy to molecular mechanisms. Ann NY Acad Sci
1993;676:188-201.
-
Troll W, et al.
Inhibition of carcinogenesis by feeding diets containing soybeans. Proc
Am Assoc Cancer Res 1979;20:265(abstract #1075).
-
Messadi DV, et al.
Inhibition of oral carcinogenesis by a protease inhibitor. JNCI
1986;76:447-452.
-
St. Clair WH, et
al. Suppression of dimethylhydrazine-induced carcinogenesis in mice
by dietary addition of the Bowman-Birk protease inhibitor. Cancer
Res 1990;50:580-86.
-
Frenkel K, et al.
Chymotrypsin-specific protease inhibitors decrease H2O2 formation by
activated human polymorphonuclear leukocytes. Carcinogenesis
1987;8:1207-12.
-
Graf E, and Eaton
JW. Antioxidant functions of phytic acid. Free Rad Biol Med
1990;8:61-9.
-
Nelson RL. Dietary
iron and colorectal cancer risk. Free Rad Biol Med
1992;12:161-8.
-
Hann H-WL, et al.
Iron enhances tumor growth. Cancer 1991;68:2407-10.
-
Lemon PW. Do
athletes need more dietary protein and amino acids? Int J Sport
Nutr 1995;5(Suppl):S39-S61.
-
Tarnopolsky MA,
Atkinson SA, MacDougall JD, et al. Evaluation of protein
requirements for trained strength athletes. J Appl Physiol
1992;73(5):1986-95.
-
Kelly G. Sports
nutrition for endurance athletes. Alt Med Rev
1997;2(3):186-201.
-
Blomstrand E, Ek
S, Newsholme EA. Influence of ingesting a solution of branched-chain
amino acids on plasma and muscle concentrations of amino acids
during prolonged submaximal exercise. Nutrition
1996;12:485-490.
-
MacLean DA, Graham
TE, Satlin B. Branched-chain amino acids augment ammonia metabolism
while attenuating protein breakdown during exercise. Am J Physiol
1994;267:E1010-22.
-
Jenkins, DJA, et
al. Glycemic index of foods: a physiological basis for carbohydrate
exchange. Am J Clin Nutr 1981;34:362-6.
- Jenkins, DJA, et al. Simple and
complex carbohydrates. Nutr Rev 1986;44:44-9.
|
Pro-96 Soy Proteins
The
Importance of Protein
What is
protein and why do we need it? Protein is composed of chains of amino
acids and constitutes about 20% of our total body weight. It functions
as the structural material of muscles, other tissues and organs, as well
as important bi-substances such as enzymes and many hormones. Without
protein, we could not live.
Protein is also
converted to glucose and used as a source of energy. When there is
limited protein intake, the needs of the organs take priority over the
needs of the muscles. While other nutrients are equally important,
protein provides a key foundation for good health.
How is Soy
Protein Different?
The most common
food sources of protein and amino acids are animal products. Of the
vegetarian sources, soybeans stand out. The protein isolate form of soy
has a Protein Digestibility Corrected Amino Acid Score (PDCAAS) as high
as egg or milk protein; 1.0, the highest score possible in this U.S.
government protein quality rating system. PDCAAS is based on the amino
acid requirements for humans, and is the foundation for the
determination of the Daily Reference Value of protein (50 grams).
Nature’s Life’s Pro-96 protein powders provide almost half (23
grams) of the Daily Reference Value (DRV) of protein in one serving!
Super-Green
Pro-96™, Phyto-Red Pro-96™ and
Berry-Blue Pro-96™ from Nature’s Life® meet or exceed the
amino acid requirements for children and adults.1 Included in the full
range of essential (which must be ingested) and non-essential (which
your body can manufacture) amino acids in Pro-96 soy proteins, are
significant amounts of essential branched-chain amino acids (leucine,
isoleucine, valine). These are critical for muscle strength.
Humans can use
soy proteins as effectively as animal protein 2,3 and since soy doesn’t
contain unwanted saturated fat and cholesterol (as does most animal
protein),4 it is a sensible choice for health-conscious people.
Isoflavones
:
Health
Benefits
Besides high
quality protein, soy also contains phytonutrients (plant source
nutrients)—such as isoflavones, phytosterols, saponins and lignans.
These phytonutrients play many important roles in supporting good
health.5,6,7 Nature’s Life soy proteins are processed with water,
never alcohol, which is essential to preserve many of these important
components.8
Three isoflavones
(genistein, daidzein and glycitein) are found in large amounts
only in legumes such as soy.9 They are classified as phytoestrogens
(natural plant estrogen) and have antioxidant properties.10 That is,
they deactivate damaging free radicals.8,10
Some studies
demonstrating the health benefits of soy have used formulas that provide
as little as 45 mg of isoflavones11,12 – in one serving of a Pro-96
product, you get a minimum of 70 mg (based on a typical analysis).
Plant estrogens
compete with estrogens produced in the body or introduced from the
environment, and prevent them from binding to estrogen-receptor
cells.13,14 The benefit is that the weak soy phytoestrogens are
preferentially absorbed and used instead of stronger, potentially
damaging, estrogens.15,16 A recent study found that a soy protein
supplement with high isoflavone content was effective in helping women
going through menopause maintain normal temperature sensation.17
Soy
Protein
and Your Heart
Eating foods high
in saturated fat and cholesterol may increase serum cholesterol levels
and in turn, increase the risk of heart disease. Nature’s Life’s Pro-96™
soy proteins contain no cholesterol and no saturated fat.
An analysis of soy protein isolate at the
Veterans Affairs Medical Center indicates that soy protein isolate can
help maintain healthy serum cholesterol levels.18
Other studies
have reported that replacing animal protein with isolated soy protein
helps maintain healthy levels of both LDL (“bad”) and HDL (“good”)
cholesterol.19,20,21
Nature’s
Life
Soy Proteins
Since 1970,
Nature’s Life has offered high quality and economical soy protein
products. The most popular use for Pro-96 Protein Powders is in
flavorful blender drinks, but they can also be used to increase the
protein content of prepared foods. Add as desired to casseroles, loafs,
patties, stews, soups, baked goods, pancakes, waffles, muffins, omelets
and sandwich spreads. Call us for recipe ideas for these excellent
low-carbohydrate, sugar-free, cholesterol-free, vegetarian proteins.!
Juicing fruits
and vegetables can be a healthy addition to the diet. One drawback,
however, is that fiber is removed during the juicing process, which
results in juice higher in natural sugar.
Adding one or two
tablespoons of Nature’s Life protein products to fresh fruit or
vegetable juice can slow the absorption of these natural sugars and help
maintain healthy blood sugar levels.22,23 Not every protein powder helps
delay sugar absorption, since many brands contain up to 50 percent or
more sugars which may adversely affect blood sugar levels.
A Raw Deal
Questions linger
about the benefits of certain soy constituents. For instance,
protease inhibitors are enzymes found in soybeans and other legumes,
and can prevent the body from completely digesting proteins. If consumed
in large amounts, as in raw beans, they can lead to protein
malnutrition. For the most part, protease inhibitors are destroyed by
heat and because Nature’s Life soy protein isolate is heat-processed,
protease inhibitors do not significantly affect nutrient absorption.
Another so-called
“anti-nutrient” in soy is phytic acid, a plant fiber which binds
to certain minerals and can prevent their absorption. Again, good
qualities are being discovered for this soy constituent: phytic acid
(also called inositol hexaphosphate or IP6) is an effective scavenger of
free radicals.37 For example, when phytic acid binds to excess iron in
the body, it prevents the formation of iron oxide, which is one of the
more damaging free radicals.38
Antioxidant Phytonutrients
All Pro-96
proteins start with the same food base of soy protein isolate, lecithin,
psyllium seed husk, apple pectin, oat fiber, and the digestive enzymes
bromelain (from pineapple) and papain (from papaya). Nature’s Life also
adds carotenoids and flavonoids to the Pro-96 protein powders. 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. Carotenoids have free-radical scavenging
properties, as well as offering support to the immune system.24,25,26
Maintaining high levels of carotenoids in the tissue helps to encourage
healthy cell membranes. While carotenoids are fat-soluble, flavonoids
are water-soluble, and have similar antioxidant properties.27,28,29
Super-Green
Pro-96™ adds Kona pure Hawaiian
Spirulina algae, with naturally-occurring amino acids, minerals,
chlorophyll and carotenoids. In addition, we add lemon bioflavonoids,
kelp and barley grass. These additional ingredients provide a highly
nutritious combination of protein, fiber, minerals, and phytonutrients
like carotenoids.
Carotenoids such
as lycopene, found primarily in tomatoes, can be found in Phyto-Red
Pro-96™. Recent research supports the protective, anti-oxidant
properties of lycopene.30,31 In addition to lycopene, Phyto-Red Pro-96™
has other carotenoid- and flavonoid-rich red foods in its Phyto-Red
Blend™: raspberries, cherries and red bell pepper.
As with
carotenoids, some flavonoids have very specific benefits, such as those
found in Berry-Blue Pro-96™. Grape, bilberry and blueberry
make up the Phyto-Blue Blend™ in Berry-Blue Pro-96™. The flavonoids in
these foods are called anthocyanidins (or OPCs), and have been studied
for their supportive benefits as antioxidant free-radical
scavengers.32,33,34,35,36
References
-
Scrimshaw, NS and Young VR. Soy protein in
adult human nutrition. In: Wilcke H.L., Hopkins D.T., Waggle D.H.,
eds. Soy Protein and Human Nutrition, Academic Press, Inc., New York,
NY, pp. 121-48, 1979.
-
Subcommittee on
the tenth edition of the RDA’s Food and Nutrition Board. Recommended
Dietary Allowances, Tenth Revised Edition, FNB/NAS, National Academy
Press, Washington, D.C., 1989:56-8.
-
Wayler A, et
al. Nitrogen Balance Studies in Young Men to Assess the Protein
Quality of an Isolated Soy Protein in Relation to Meat Proteins. J
Nutr. 1983;113:2485-2491.
-
Energy and
Protein Requirements, 1985. Report of a joint FAO/WHO/UNI
consultation. World Health Organization Technical Report series 724.
-
Friedrich JA.
Protective and regulatory benefits of soy: clinical perspectives.
Altern Complementary Ther 1997(Feb):53-58.
-
Potter SM. Soy
protein and cardiovascular disease: the impact of bioactive components
in soy. Nutr Rev 1998;56:231-35.
-
Rao AV, Sung
MK. Saponins and anticarcinogens. J Nutr. 1995;125 (3 suppl):717S-724S.
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Supplemental Information
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The Super-Red Pro-96 Protein Sale Price: $11.58 - Vitamins or Herbs Should be taken as directed on the bottle.
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