Part 2: From Research To Results: Whey Protein Isolate Delivers Unsurpassed Muscle Growth
By Admin | Thursday, February 22, 2007 11:51:49 AM America/New_York
Pure whey protein isolate contains the highest amounts of all the valuable micro-fractions in whey that grow more lean muscle mass faster than any other protein source. It has a higher concentration of beta-lacto-globulin, a rich source of branched-chain amino acids (BCAAs), l-isoleucine, l-leucine, and l-valine, which are readily absorbed by the muscle tissue to aid in building and repairing.
Whey protein isolate is also a rich source of cysteine, the rate-limiting amino acid necessary for synthesis of the antioxidant glutathione, which protects against oxidative damage during resistance exercise4.
This nutrient-rich protein source also contains high amounts of the powerful micro-fractions alpha-lactulbumin and glycomacropeptides, which are essential factors in enhancing bioavailability, boosting immune response and greatly increasing anabolic activity. Whey isolate also has demonstrated a nutrient partitioning effect, driving nutrients away from fat storage and toward accumulation of lean muscle tissue. Finally, whey protein isolates are lower in lactose so people with lactose intolerance can safely use this form of whey.
Cross-Flow Micro-Filtration Processing is Key
Although whey protein isolate is a more pure and powerful protein, the type of processing used to manufacture the isolate can greatly affect the quality and potency. For example, if it's processed using extreme heat and acidic conditions (such as occurs in ion-exchanged protein isolates), some of the valuable protein fractions that exist in whey may be compromised and result in a lower BV. As a result, Ion Exchange processing has gradually become less and less valued and has now given way to a more advanced, state-of-the-art-processing technique called Cross-Flow Micro-Filtration. This sophisticated processing technique uses natural ceramic filters to isolate whey protein and avoid heat and harsh solvents. Cross-Flow Isolate retains the full BV and growth-stimulating benefits of whey like no other protein product available worldwide.
Arginine AKG-Another Big Tool in the Mass-Building Equation
While on the subject of bioavailability, there is some extremely promising work that's being done to maximize protein uptake and utilization even further.
L-Arginine has long been recognized as an amino acid essential for optimum growth and protein metabolism. Bound with the amino Alpha-Ketoglutarate, the resulting complex has shown remarkable capacity as a nutrient delivery system5, maximizing amino acid metabolism and absorption, and creating a highly anabolic environment for major increases in muscle mass and strength.
This amazing complex has also been shown to accelerate fast-twitch muscle strength, add real structural proteins to the nuclei of muscle cells, shorten recovery time, and increase workout endurance6. One of its most remarkable effects is the creation of a prolonged "pump" that can last hours after intense exercise. This effect, created by the lasting presence of nitric oxide in the muscle, has proven especially popular with athletes.
Arginine AKG has emerged as one of the hottest compounds in the industry, and athletes are rapidly making it a part of their supplementation regimen, stacking it with protein to enhance the mass-building power of both. Manufacturers are just starting to catch on to this trend. In fact, ProSource has recently reformulated the best-selling NytroWhey with Arginine AKG, to create a revolutionary new product called NytroWhey Extreme. This pairing of NytroWhey Extreme's 100% pure whey protein isolate with a proven, high-powered nutrient delivery system like Arginine AKG has the potential to elevate protein utilization and mass gains to levels never seen before.
The pure Cross-Flow Micro-filtrated whey protein isolate in NytroWhey Extreme is already highly bioavailable and primed for maximum lean mass gains. Drive it into your muscle tissue with a super-efficient compound like Arginine AKG and the whey's anabolic power increases exponentially. In terms of getting the most muscle-building value, NytroWhey Extreme sets an entirely new standard for high-powered anabolism.
The top pro bodybuilders on the following article have already learned what you will soon find out- NytroWhey Extreme represents the single most powerful protein formula ever made available to the public.
Read On for Part 3 of this article
1) CRIBB, P.J., A.D. WILLIAMS, A. HAYES, AND M.F. CAREY.
The effect of whey isolate and resistance training on strength, body composition and plasma glutamine. Med. Sci. Sports Exerc. S299, 2002.
2) CRIBB, P.J., A.D. WILLIAMS, A. HAYES, AND M.F. CAREY.
The effects of whey isolate, creatine and resistance training on muscle fiber characteristics, strength and body composition. Experimental Biology, San Diego, CA, April 11-15, 2003.
3) BURKE, D. G., P. D. CHILIBECK, K. S. DAVISON, D. G. CANDOW, J. FARTHING, and T. SMITH-PALMER. The effect of whey protein supplementation with and without creatine monohydrate combined with resistance training on lean tissue mass and muscle strength. Int. J. Sport Nutr. Exerc. Metabol. 11:349-364, 2001.
4) KENT, K.D., W.J. HARPER, AND J.A. BOMSER. Effect of whey protein isolate on intracellular glutathione and oxidant-induced cell death in human prostate epithelial cells. Toxicol. In Vitro. 17:27-33, 2003.
5) Cui XL, Iwasa M, et al. Nutrition 1999, Jul-Aug;15 (7,8):563-9.
6) Marshall, E, et al. The FASEB Journal. 2000; 14:1889-1900