Protein powders are useful to supplement your diet with a high quality protein
without consuming the saturated fats that frequently accompany whole foods
that are high in protein. Some people prefer to eat foods that are high
in carbohydrates, so consuming protein drinks with meals allows them to
continue to eat their preferred foods while getting the protein their body
needs. Protein powder is also excellent for use in recipes to make Zone
diet, low carbohydrate diet, ketogenic diet, or just high protein meals.
The Biological Value, or BV, of a protein is an indicator of the quality
of the protein. It is a measure of a protein's ability to be used by the
body (or its bioavailability). It is a percentage (though the
scale is skewed resulting in some BV's of greater than 100) of the absorbed
protein that your body actually uses.
Biological Values are indicators of which proteins are best at aiding nitrogen
retention in muscles to help them maintain or grow in mass.
Many of the whey protein powder manufacturers claim that their products have BV
values well above regular whey protein by various techniques such as ion-exchange
processing, hydrolization, and adding other ingredients such as specific amounts of limiting essential amino acids.
Hydrolyzation is a process breaking large peptides into smaller ones.
It is sometimes referred to as "pre-digested".
Regular undigested whey will be broken down into di- and tri-peptides
via enzymes in the gut and will be absorbed, but the process takes a
while. Hydrolyzation is useful when protein delivery is needed very
quickly so the body doesn't have to require the time and enzymes doing it.
The benefit is of having a quickly absorbed protein immediately after
a workout to ensure the muscle tissue is flooded with nutrients in a
timely manner.
Protein Source
BV
Whey Protein Isolate Blends
Whey Concentrate (Lactalbumin)
Whole Egg
Cow's Milk
Egg White (Albumin)
Fish
Beef
Chicken
Casein
Rice
Soy
Wheat
Beans
Peanuts
100-159
104
100
91
88
83
80
79
77
74
59
54
49
43
Optimum Nutrition 100% Whey Gold Standard Protein
Whey protein Isolates are 90% pure protein by weight. They are the purest
and most expensive form of whey protein that exists. That’s why they are the
first ingredients you read on the 100% Whey Gold Standard™ label. By using Whey
Protein Isolates as our primary protein source, we’re able to pack 24 grams of
the purest, muscle-building protein per serving, with a lot less of the fat,
cholesterol, lactose, and other stuff that you can do without. There’s no
question this is the standard by which other whey proteins are measured.
• 24 g of pure, unadulterated whey protein per serving
• More Whey Protein Isolates (WPI) – the purest source of whey protein available
• Over 4 g of glutamine precursors and more than 5 g of BCAAs
• Includes Hydrowhey™, lactase, and Aminogen®
• Instantized to mix easily and completely
Also available in a Natural version also - no artificial colors, flavors, or sweeteners.
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** The "$200+ Orders" price reflects a 5% discount for orders that total over $200.
April 06, 2007 Reviewer: Kevin in District of Columbia
I'm going to make an educated guess and say that this protein is probably one of the most popular whey proteins being sold today - and with good reason. It's a simple formula of concentrate/isolate protein. It tastes good. It mixes easily (trust me, others don't). It's reasonably priced. I've seen everyone from bodybuilders to boxers supplementing with this brand. The truth is that pure whey is relatively easy to cull from milk, and it is relatively easy to maintain good quality, so the production costs are not very high. By its very nature it is not an incredibly difficult or technical process. This makes you wonder why a thousand other brands are marketing their whey as "pharmaceutical grade" and charging twice as much. 100% NATURAL Whey Protein is a good value.
This review is specific to 100% NATURAL Whey Protein, Natural Chocolate
I've researched all the protein powders and have tried many, including Designer Whey, which is my second favorite. But this one does not use any artificial sweeteners, so I like it. It also tastes really good without that fake sugar taste.
I love this stuff! It's one of the very few protein powders that doesn't taste synthetic, to the extent that mixing it with water in a glass is delicious -- and my favorite way to take it! I can't tell you how many protein drinks I've had that need to be blended with 4 bananas, 3 cups of milk and a stick of butter to make them taste reasonable... if you're tired of all that, this is the way to go.
This review is specific to 100% NATURAL Whey Protein, Natural Chocolate
I've been using this product for a decade. While other products often clump up or overly thicken unless a blender is employed, Optimum Nutrition's proteins dissolve even under the mere persuasion of a spoon in a glass. Vanilla tastes great with OJ or milk, chocolate works great with water or milk (and I sometimes add fortified peanut butter too for a taste treat) Great product and the best value for your dollar, too. A one-two punch that can't be beat.
This is an excellent product both in taste, ease in mixing, and physical benefits. My wife has been using this specific product for at least 3 years on a regular and consistent basis. All of the Optimum Nutrition protein products and supplements I have tried and continue to use have been nothing but outstanding quality. We recommend these protein products to many of our friends, even the ones that do not workout with weights, like we do. It is an excellent product for a meal replacement, especially at breakfast and night time before bed. We prefer the Natural products because they are less sweet and contain natural sweeteners. Also, the price is very reasonable for the product and its quality.
This review is specific to 100% NATURAL Whey Protein, Natural Chocolate
This is the most selling, best protein powder out there.
Having used all of the flavors
highly recommend: banana cream, caramel toffe fudge (little bit aftertaste though but my favorite), double rich chocolate, extreme milk choc., cookies n cream
for vanilla lovers vanilla ice cream and french vanilla are both amazing
strawberry tastes weak, orange cream is not good.
rocky road is disgusting. I could not still understand who would want that bitter taste.
Best price for protein powder!
Mixes well, tastes excellent and smooth, very little clumps with a shaker.
With 22 Amino Acids included, how can you go wrong? I have noticed gains from this and this is my 2nd purchase.
Best Bang for your Buck. Not that expensive and doesn't carry all the fat and calories that some have. I used to use muscle milk but it just came with too many calories. It tasted great but not worth it. ON protein doesn't taste as good as muscle milk but its close enough and it is much better for you.
This review is specific to 100% Whey Gold Standard Protein, Caramel Toffee Fudge
If you notice any errors in the information above, please
let us know.
If you have further questions about this product, please contact Optimum Nutrition at 1-800-705-5226
Labrada has every lot of ProPleteTM Protein tested for purity
and potency by an independent lab using HPCE (High Performance Capillary Electrophoresis).
Lee Labrada's Quality Guarantee Seal:
"If it's on the label, it's in the bottle!"®
Precision Protein marks the beginning of a new era in whey-protein formulation and
supplementation. For years, whey has been revered as the
quality protein source for fitness enthusiasts and athletes. Boasting
possibly the highest biological value of any naturally occurring
protein, its reputation and popularity are well deserved. However,
recent scientific evidence suggests the benefits of whey protein
for athletes may go well beyond its ability to supply quality
amino acids to hungry muscles.
Protein scientists have discovered that whey, in
its natural state, contains a variety of bioactive compounds generally
referred to as "protein microfractions." These powerful
compounds may offer numerous positive biological effects to hard-training
athletes, including: immune-system reinforcement, antioxidant
protection, and even possible support of muscle-tissue repair
and regeneration.
Isolation and stabilization of these fragile microfraction
proteins is a very difficult and technical process. In the past,
most of the methods of whey processing and isolation used extreme
temperatures and acidic conditions, thus destroying these valuable
microfractions. Only recently have new extraction techniques been
developed and employed which may make it possible to isolate and
stabilize protein microfractions in a finished whey-protein powder.
The two most advanced techniques, known as ion exchange
and ultrafiltration, are used in combination to create
Precision Protein - a high quality, microfraction-rich
whey protein.
In addition to Precision Protein's extraordinary
microfraction profile, it's fortified with key amino acids, including:
glutamine (in peptide form), taurine, and glycine, which may support
cell volumizing and protein metabolism. The conditionally essential
amino acid arginine has also been added to this formula to help
support growth-factor production. And, the amino acid phenylalanine
is included to reinforce the overall amino acid profile of the
Precision Protein formula and boost its biological value.
Precision Protein is also
the only whey-protein supplement available on the sports nutrition
market which contains the patented proteolytic enzyme complex
Aminogen®. This unique enzymatic compound has been
shown in recent scientific research to possibly assist protein
assimilation by creating protein peptides and preferentially liberating
branched-chain amino acids from whole proteins.
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Do not add the item to your shopping cart unless you want to purchase it.
While supplies last.
MET-Rx Protein Plus
This dynamic powder was developed to give you the competitive edge in protein!
Protein Plus contains our exclusive Metamyosyn blend, with a complex matrix of
protein and amino acids—plus it tastes great and is low in fat and sugar.
For an instant protein boost, try MET-Rx Protein Plus powder mixed
with milk, water or your favorite juice. Each serving (16 servings per container) offers
up 46 grams of pure, upgraded and enhanced Metamyosyn protein. It's
easily digested and readily absorbed by your body. And you get all of this for
just 1 gram of fat and three grams of carbohydrate.
This is the proprietary protein blend, Metamyosyn, that MET-Rx is famous for and
is now available in an economical container! Metamyosyn consists of specially
processed milk-protein isolates, caseinates, whey, egg whites and
L-glutamine which specifically supports protein synthesis, energy
production and fat utilization.
All products are In Stock unless otherwise marked.
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** The "$200+ Orders" price reflects a 5% discount for orders that total over $200.
November 10, 2007 Reviewer: Christopher in California
This powder mixes easily without a blender and doesn't clump up like most powders. Of all the powders I have tried, this is the easiest to mix. Both vanilla and chocolate flavor taste good. Also, fewer carbs compared to most other mixes.
I bought this product because I had found it nearly impossible to get the 45-52 grams of protein that is recommended that a 5'2" person should get a day. I was averaging between 30 and 37 grams a day prior to getting this product. That was the ONLY reason I bought the product.
To my surprise, 3 weeks after taking this product (just one scoop gave me the extra 15 grams I needed)my cardiovascular out-put went up sharply. I work out on an Airodyne bike (upper and lower body workout) and for the last 2 years I had only been able to do 16 to 17 miles in 65 minutes. Suddenly, out of the blue, I found myself doing 19 miles in 65 minutes! I have done nothing different-except added the protein. Suddenly, I can do 2 to 3 miles MORE in the same time. I must admit, I was stunned! It HAD TO BE that I finally was getting the recommended daily requirement for protein. wow!
By the way-it tastes great!
Ingredients: Metamyosyn Protein Blend (Milk Protein Concentrate, Calcium and Sodium Caseinate, Whey Protein Isolate, L-Glutamine, Egg White), Natural and Artificial Flavor, Partially Hydrogenated SoyBean and Cottonseed Oil, Aspartame, Cellulose Gum, Xanthan Gum, Guar Gum.
Recommended Use: Add (3)scoops of powder(57g)with 12-16 ounces of cold water or milk and mix thoroughly in a blender. Drink immediately for best results.
Before beginning any program of weight loss, consult your health care practitioner. These statements have not been evaluated by the FDA. This product is not intended to diagnose, treat, cure or prevent any disease.
PHENYLKETONURICS: Contains Phenylalanine.
If you notice any errors in the information above, please
let us know.
If you have further questions about this product, please contact MET-Rx at 1-800-55-MetRx
The biological value of any dietary protein is related to the efficiency of its digestion and utilization.
The digestibility of a dietary protein depends on intestinal health and intestinal motility (how quickly
food travels down the intestine). In a healthy person, intestinal motility is contingent upon emotional
and physical stress, as well as foods and chemicals. For example, cheese slows intestinal motility and
caffeine increases motility. Increased motility decreases digestive efficiency which wastes protein and
promotes an unhealthy environment.
Biological value is also related to a protein's amino acid profile (combinations of amino acids).
Once protein is digested, the amino acids are absorbed and their function as energy substrates (metabolites)
or building blocks begins. From this point, caloric intake and physical activity influence how amino
acids are used. Protein is not simply protein. That is to say, not all proteins are alike, nor will
they produce the same metabolic effects.
Acquiring calories is NOT a problem for most Americans, as their weights attest. On the contrary,
most Americans eat too many calories and consume combinations of macronutrients which favor fat production
and storage. However, if lean body mass is the goal and fat mass is to be minimized, the macronutrient
ratio must reflect low-fat, higher protein and moderate carbohydrate consumption. Specific amino acid
profiles are better suited, metabolically speaking, to support protein synthesis when carbohydrate intake
is limited.
The amino acid profile in Metamyosyn, the protein formulation in MET-Rx, was developed specifically
to minimize the catabolic effects of lower carbohydrate diets - diets which ultimately produce lean body
compositions. The protein contained in MET-Rx is highly specialized not only in its amino acid profile,
but in digestibility as well.
Metamyosyn provides a precise amino acid profile designed specifically to decrease protein breakdown
in muscles. Its composition of "native" milk protein isolates (undamaged milk proteins) makes it
particularly effective because digestion of these milk proteins closely simulates that of whole milk.
This is important since natural digestion of whole milk protein is believed to produce biologically
active peptides which improve protein digestion and absorption by slowing intestinal motility.
There is not much sense in providing a unique amino acid profile if the body
cannot digest and absorb it due to increased motility, a common condition
resulting from emotional and physical stress, as well as chemical agents like
caffeine. This is why Metamyosyn works, making it unique among other
protein supplements on the market.
AST VP2
• Aspartame Free
• Research Proven
• Pure Whey Peptide Isolate
• 100% Hydrolyzed Whey Fractions
• "Bio-Active" Peptide Isolates
• Highest Nitrogen Retention
• Gram for Gram More Protein Than Any Other Protein Made
VP2 Whey Isolate is a pure hydrolyzed isolated whey protein scientifically
proven over 600% more effective for supporting muscle growth than other proteins.
VP2 has enhanced absorption kinetics that shuttle large amounts of the amino
acids essential for protein synthesis directly into muscle and other tissues. This
enhanced delivery system relieves the metabolic burden on muscle having to supply
all organs and tissues with these amino acids. This leaves a more potent supply of
critical amino acids within muscle and promotes a more constant, uninterrupted
state of protein synthesis, cell volume, and muscle anabolism.
VP2 creates a high level of cysteine within the bloodstream. Research has shown
this to be essential to the protein regulation process within the body. A high and
constant supply of cysteine channels protein metabolism toward muscle growth and
away from muscle breakdown. VP2's cysteine supply relieves the burden on muscle,
enhancing muscle anabolism and strength. VP2 is also high in cystine (two cysteine
amino acids joined together). This dipeptide is extremely rare in other foods and
protein supplements. It is critical to the formation of glutathione within the body.
Glutathione is the centerpiece of all antioxidant and detoxification defense
systems within our body and is the third biochemical pathway that leads to muscle
growth and strength increases. The research on glutathione's relationship with muscle
is clear. Heavy and intense training lowers glutathione levels. Increasing cellular
glutathione leads directly to increases in muscle mass and strength. VP2 promotes
elevated glutathione levels for dynamic increases in strength and muscle mass.
All products are In Stock unless otherwise marked.
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I have tried probably a dozen protein powders and have settled on VP2 since it has the best taste (as does EAS Myoplex). VP2 is also a good price for the amount of protein per serving. It mixes very easily, although it is thin, not thick like some of the others - which I prefer.
This review is specific to VP2, Double Rich Chocolate
I reviewed this earlier and said it was my favorite, but the price has since increased to $36. I'm trying other cheaper alternatives now.
[Editor's Note: The price of all whey proteins and milk products have increased drastically during 2007.]
This review is specific to VP2, Double Rich Chocolate
Recommended Use: Add one heaping scoop to 8 ounces of your favorite cold liquid (water, milk, etc.). VP2 starts dissolving instantly. Just a few turns with a spoon or shakes in a shaker bottle and it's completely mixed and ready to drink. When to use- Take 1 serving of VP2 30 minutes before training and another serving immediately after training. On non-training days use VP2 two to three times daily.
This product may contain traces of nuts.
Before beginning any program of weight loss, consult your health care practitioner. These statements have not been evaluated by the FDA. This product is not intended to diagnose, treat, cure or prevent any disease.
If you notice any errors in the information above, please
let us know.
If you have further questions about this product, please contact AST at 1-800-627-2788
HDT/Wellements
Pro Blend 55
Naturally, there are many different forms of protein. Moreover, there are different forms of whey protein, each
having its own digestion rate limitations. Pro Blend 55 proportionally combines four separate forms of whey protein as well as egg albumin (white), and micellar casein to virtually eliminate these digestive rate limitations. Through a time-release protein delivery system,
newly added digestive enzymes, stabilized rice bran, and this blend of high quality protein sources all aid in
maximizing protein absorption by effectively increasing and sustaining a higher concentration of protein
in the bloodstream for a more significant timeframe.
Each serving: • contains 11 grams of Branch Chain Amino Acids. • is fortified with L-Glutamine.
• uses 55g of "Instablend" instantized blended protein. • contains digestive enzymes Pancreatin
and Lactase to further assist in the efficient digestion of protein,
carbohydrates, and fat. • contains stabilized rice bran to provide valuable
vitamins, minerals, and antioxidants as well as aid in digestive tract health.
All products are In Stock unless otherwise marked.
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** The "$200+ Orders" price reflects a 5% discount for orders that total over $200.
September 27, 2006 Reviewer: A customer in New York
Pro Blend 55 is a truly great-tasting, easily-mixable and eaily-digestable product. I've been using it for six years and have never found anything that I would consider supplementing with over it.
Pro Blend is by far the highest quality protein blend I have ever used. As a trainer for many years, and having worked with top athletes for years, there is no better product that matches the absorbability and digestibility of this very high quality product.
This is a great tasting product that also mixes very well. I've used it for a few years now and prefer it to any other "mixed profile" protein powders. I've only tried chocolate and vanilla and recommend both. Quick protein and oatmeal recipe : Mix 3/4 cup old fashioned Quaker oats, 1-2 tbsp of natural peanut butter, a dash of cinnamon, and enough skim milk to cover the oats. Microwave for 1 minute 45 sec. Then add a scoop of this chocolate powder and stir. Good and quick. You may need to adjust milk/pb/oats to get the consistency you like.
Ingredients: Micro ultra filtered whey protein concentrate, micro ultra filtered whey protein isolate, ion exchanged whey protein isolate, hydrolyzed whey protein isolate, egg albumen, micellar casein, l-glutamine, l-isoleucine, l-leucine, l-valine, pro-digestive blend (stabilized rice bran, pancreatin, lactase), natural and artificial vanilla flavorings, sucralose (splenda brand).
Recommended Use: Mix 2 scoops with 8-12 ounces of your favorite liquid then blend. Mix 2 scoops with 8-12 ounces with your favorite liquid then shake.
Before beginning any program of weight loss, consult your health care practitioner. These statements have not been evaluated by the FDA. This product is not intended to diagnose, treat, cure or prevent any disease.
If you notice any errors in the information above, please
let us know.
If you have further questions about this product, please contact HDT/Wellements at 1-800-255-2690
1. Boirie Y, Dangin M, Gachon P et al. (1997). Proc Natl Acad Sci USA, 94: 14930.
2. Van Hall G, Saris WH, van de Schoor PA et al. (2000). Int J Sports Med 21: 25.
3. Markus RC, Olivier B, Panhuysen GEM et al. (2000). Am J Clin Nutr, 71: 1536.
Next Proteins Designer Whey Protein
• 5 Time Gold Medal Taste Winner
• Research proven protein that works™
• 100 Good-For-You Calories
• Better body fat loss with exercise*
• Better increase in lean muscle*
• Better energy and strength*
Designer Whey Protein is the original protein (since 1993) that works to boost energy, increase strength, speed recovery, and better your results. 18g of protein helps burn fat and build lean, strong muscles during exercise. 100 Good-For-You Calories™ make counting calories easy and weight management a piece of cake. Bodybuilders kept this secret and now you have a chance to see the same health improvements and exercise results that they did.
Designer Whey Protein is clinically tested and research proven protein that works, so you can get better results from the inside out. The facts are, with an amino acid profile most identical to human muscle, rapidly digested Designer Whey shows a better increase in lean muscle, better fat loss and better strength for a better body.
All products are In Stock unless otherwise marked.
To place an order:
Add items to your Shopping Cart by clicking on "Add" above. Finished shopping? Checkout.
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** The "$200+ Orders" price reflects a 5% discount for orders that total over $200.
Out of all the protein powders I have tried over the twenty plus years of working out, Designer Whey Protein powders are the easiest to mix and the best tasting on the market today. I have seen great results using this powder for fat loss and muscle gains.
This is one of the best tasting protein drinks I have had. Not only that, it is very satisfying and curbs my hunger too. I use 2 scoops with 8 ounces of no fat milk and 4 ounces of water, throw in a couple ice cubes, and blend very briefly. It is the best!! That gives me about 50 grams of protein alone. I've also thrown in various fruit/peanut butter for a change of pace, but I love it alone!
This review is specific to Designer Whey Protein, Chocolate
Hey, I have tried the vanilla praline, chocolate, and the strawberry. All are pretty tasty but I prefer the strawberry, have seen great results with this product and would recommend it to anyone looking for a protein supplement.
Allergy Warning: Contains milk products and soy lecithin. Other than whey, dried cream extract, loctoperoxidase, and whey mineral complex, there are no other animal-sourced ingredients in this product. Use this product as a food supplement only. Do not use for weight reduction.
Ingredients: Full spectrum whey peptides [modified molecular weight and partially pre-digested (hydrolyzed) whey protein concentrate, pduf whey protein isolate, whey glutamine peptides (incl. Natural glutamine peptides), taurine, l-leucine, l-phenylalanine], cocoa (treated with alkali), whey mineral complex, lecithin, natural and artificial chocolate flavor, glutasynth (l-glutamine, oligofructose, glutamine peptides), natural and artificial flavor, zinmag-6 (magnesium oxide, magnesium aspartate, zinc aspartate, pyridoxine), salt, cellulose gum, dried cream extract, xanthan gum, sodium alginate, acesulfame potassium, sucralose, vanillin, natural vitamin e (as mixed tocopherols), lactoperoxidase.
Recommended Use: Add 1-3 Scoops To 3-10 oz. Of Water, Milk, Juice, Yogurt Or Your Favorite Recipe. Stir Until Dispersed. Drink Immediately. Add More Or Less Liquid As You Like.
Before beginning any program of weight loss, consult your health care practitioner. These statements have not been evaluated by the FDA. This product is not intended to diagnose, treat, cure or prevent any disease.
If you notice any errors in the information above, please
let us know.
If you have further questions about this product, please contact Next Proteins at 760-431-8152
Q. You say Designer Whey™ is clinically tested, how so?
Whey is a by-product of cheesemaking that contains vitamins, minerals, protein, lactose and traces of milk fat. Most commercial whey supplements are derived from cow’s milk, which is comprised of 6.25% protein: 20% in the form of whey. Whey protein supplements utilize the concentrated protein, eliminating the lactose and milk fat.
Whey is a complete protein, meaning it contains all essential and non-essential amino acids, which are vital to your metabolism, and to making your body function properly for good health.
Q. Is milk the same as whey?
No, while both are natural dairy products, milk contains
approximately 6.25% protein that is comprised of 80% casein protein and
20% whey protein. In addition, milk contains lactose and fat
(removed in skim or fat-free milk). Whey protein is extracted from milk,
eliminating most of the casein, lactose and fat.
Q. Why do I need protein?
Proteins are the basic building blocks of life. Protein, and only protein,
provides your body with the amino acids it needs to build, repair and
rebuild muscles. Protein also provides the necessary components to keep
your immune system healthy, make hormones, enzymes, skin, hair, nails,
organs and blood. (Note the word protein comes from the Greek word
"proteios" meaning of prime or of first importance.)
(17 reviews)
Labrada has every lot of ProPleteTM Protein tested for purity
and potency by an independent lab using HPCE (High Performance Capillary Electrophoresis).
Instant Soy 'N Whey from Next Nutrition
(3 reviews)
November 12, 2007 
VyoPro
from AST Research is another
popular whey protein powder. Whey is actually a by-product of cheese production.
It is the watery part of milk that separates from the curds in the process
of making cheese. At this point, the whey is 0.6% protein - the rest is
water, ash, fat and lactose. Through a very delicate micro-filtration and
"stirred-bed" reactor ion-exchange process, virtually all of the fat and
lactose is removed - leaving behind pure isolated whey protein. VyoPro
is then hydrolyzed (predigested) with a special enzymatic process that
yields the highest degree of hydrolysis without being bitter. This delicate
process gives VyoPro Whey Protein a unique amino acid structure called
oligopeptides that makes it the most useable form of protein by
the body. Whey oligopeptides are the newest innovation in whey protein
science. With the special dual enzymatic process used in VyoPro Whey Protein,
the amino acid chains that make up the whey protein are split into very
small chains - very small peptides. It's the precise slicing of the longer
peptide chains that result in a more effective protein.
Promax Protein Powder
is a great tasting protein supplement specifically
designed to meet the nutritional needs of serious bodybuilders, powerlifters and
other athletes who require a high
quality source of protein. Promax's sugar free, low fat formula makes it
the ideal protein supplement for those looking to
build lean muscle or to spare muscle tissue while dieting.
