Protein is probably the most important supplement for all athletes, but it is especially indispensable for those involved in long-term, high intensity endurance training. It is the fuel for the build-up, mass and toning of the muscle. In fact, protein is essential for growth and development. The proteins that make up the human body are not obtained directly from the diet; rather, dietary protein is broken down into its constituent parts known as amino acids, which are the basic building blocks of life. That means that it is the amino acids, and not protein per se, which are essential nutrients.
Of the 20 amino acids that the body needs to make protein, eleven are designated as nonessential amino acids, because they can be produced by the human body from other amino acids and do not need to be obtained from the diet. The remaining nine amino acids cannot be synthesized by the body and are, therefore, called essential amino acids. These amino acids must be obtained by degradation of the dietary protein. All of these essential amino acids must be present in the body in order for it to build and repair muscle.
The manner in which the body uses protein during and after exercise is quite different from the way it utilizes carbohydrates or fat for energy. In the hours after exercise, the body begins to build the so-called structural proteins from amino acids for muscle repair and growth, and remodeling the tissues needed for performance. This is one of the reasons that athletes should pay particular heed to nutrition for complete recovery fast and make it an integral part of their workout regimen.
Exercise duration and intensity are important factors in determining which of the nutrient fuels are burned to gain energy. An exercise regimen comprising of low- to moderate intensity of long duration necessitates large quantities of fuel --oftentimes more than carbohydrates and fat reserves in the body can provide. Therefore, the body begins to utilize structural and functional proteins during long-term aerobic exercise. In contrast, high-intensity exercise of short duration mostly uses glucose, which spares the protein reservoir of the body.
To meet the needs of athletes, Ultimate Nutrition has designed Prostar Whey all the essential and nonessential amino acids to build the muscle after intense exercise of both short and long duration. It is a customized blend of all the nutrients, including immune enhancing factors from whey protein by a specialized process. Since exercise can take a toll on the immune system, Prostar Whey is the nutritional supplement of choice for those who lead an active lifestyle. Prostar Whey is not just for the athlete however. It supports the msucle maintenance, buildup and toning among individuals who are merely "weekend warriors." Furthermore, it provides wholesome support for compromised or wasting muscle due to advancing years. Ultimate Nutrition's Prostar Whey is, indeed, the nutrition for the champions!
Supplement Facts :
Amount Per Serving % Daily Value*
Calories 110 
Calories From Fat 15 
Total Fat 1.5g 2%
Saturated Fat 1g 5%
Trans Fat 0g %
Cholesterol 20mg 7%
Sodium 50mg 2%
Total Carbohydrates 2g <1%
Fiber 0g 0%
Sugar 2g 
Protein 23g 46%
Vitamin A  2%
Calcium  20%
Vitamin C  0%
Iron  2%
Typical Amino Acid Profile 
- Essential Amino Acids
L-Leucine 2937mg 
L-Isoleucine 1418mg 
L-Valine 1099mg 
L-Lysine 2436mg 
L-Threonine 960mg 
L-Methionine 471mg 
L-Phenylalanine 884mg 
L-Tryptophan 586mg 
- Non-Essential Amino Acids
L-Arginine 419mg 
L-Aspartic Acid 2359mg 
L-Cystine/cystein 847mg 
L-Alanine 1161mg 
L-Glutamic Acid 3879mg 
L-Glycine 434mg 
L-Histidine 471mg 
L-Proline 950mg 
L-Serine 899mg 
L-Tyrosine 790mg 
* Percent Daily Values are based on a 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs
Ingredients
Premium Cold Micro And Ultra-Filtrated Whey Protein (High Protein Concentrate And Isolate), Soy Lecithin, Natural And Artifical Vanilla Flavor, Acesulfame Potassium, And Sucralose.
Advised Use :
Use 1 scoop to 5 oz. of purified water or skim milk. ProStar Whey may also be used in pancakes, waffles, and muffins.
Contents : 2Lbs (907gr)