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Home > Sports Nutrition > Protein Powders > Whey Protein Isolate WPI
Home > Sports Nutrition > Whey Protein Isolate WPI
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What is whey protein and where does it come from?
Whey protein is a pure, natural, high quality protein from cow's milk. During the process of turning milk into cheese, whey protein is separated out. It is a rich source of the essential amino acids needed on a daily basis by the body. In its purest form, as whey protein isolate, it contains little to no fat, lactose or cholesterol.
Protein can be found in a variety of foods mainly meats, such as fish, beef, and chicken. Dairy products as well as eggs, cottage cheese, soy and vegetable protein also contain good amounts of protein. Nevertheless, none of these sources compares in quality or ease of use like whey protein. Whey protein has the highest value in providing branched-chain amino acids, which result in building and retaining muscle tissue.
Whey protein is derived from milk proteins as part of the cheese manufacturing process. For decades whey was used as animal feed. Veterinarians noticed how healthy the animals got when they were fed whey, which led to research into the benefits of whey. By 1992, a process was developed to extract the pure amino acids from milk proteins leaving behind all the sugar, fat, and cholesterol. What the nutritional scientists came up with is the purest, cleanest, most biologically available source of protein in history. Whey protein isolate is the richest source of the 8 essential amino acids and branched-chain amino acids your body needs for growth, energy, and vibrant health.
What are the benefits of Whey Protein?
Whey protein is an excellent protein choice for individuals of all ages who value the role of a healthy diet in helping to maintain and improve their health. Whey protein isolate is great source of the essential amino acids required your daily diet. Essential amino acids are the building blocks for healthy muscles, skin, nails and other body tissue. It provides a number of benefits in areas including sports nutrition, weight management, immune support, bone health, and general wellness. New information on the health benefits of whey protein continues to become available as researchers discover new applications for both whey protein and its unique individual protein components.
Whey protein (the highest quality and best form of protein) is incredible stuff. It provides the body with the necessary building blocks to produce amino acids that are used for building muscle tissue. Studies have been conducted that compare whey protein to other sources. They have found that whey protein contains the perfect combination of overall amino acid that you need for optimal performance in the body. It’s also been proven that both hormonal and cellular responses seem to be greatly enhanced with supplementation of whey protein. According to documented scientific research, taking whey protein has great impacts on your body’s immune system. Whey protein also plays a role as an antioxidant and helps support a health immune system. Most importantly, consistent whey protein intake coupled with exercise will result in consistent muscle building.
Research shows that whey protein has the following health benefits:
Stabilizes blood sugar and prevents diabetes by slowing assimilation of carbohydrates into glucose in the blood stream.
Reduces stress and alleviates depression by slowing production of the powerful stress hormone
Promotes fat loss
Builds muscle by stimulating maximum protein synthesis.
Enhances the immune system by raising the body's levels of glutathione
Increases exercise capacity.
Fights infections.
Encourages bone growth helping to prevent osteoporosis.
Has the highest biological value (a measure of nitrogen retained for growth or maintenance) of any protein because it is absorbed, utilized and retained by the body better than other proteins.
May help lower cholesterol.
May help prevent prostate cancer.
Can I mix Whey Protein with fruit juice?
You can, but that would defeat the purpose of your diet program. Fruit juice, even freshly squeezed, is very high in sugar. It takes many pieces of whole fruit to make one glass of juice. Fruit juice is very quickly broken down into glucose in your blood stream. It causes an instant blood sugar rush, and subsequent insulin spike. You can use whole fruit in your shake, but not fruit juice. Whole fruit has fiber, is not as concentrated as fruit juice, and, blended with raw oil and whey protein, which slows gastric emptying causing the carbohydrates to break down more slowly into glucose.
What should I look for in a high-quality protein supplement?
There are various factors to consider when looking for a high quality protein.
A high-quality supplement should, first and foremost, have generous amounts of all the 8 essential amino acids. Amino acids are the building blocks of all proteins. And proteins are the building blocks of muscle. "Essential" means that your body needs it, but cannot manufacture it. Therefore you must eat it. The eight essential amino acids are: tryptophan, lysine, leucine, methionine, phenylalanine, valine, threonine, and isoleucine. Leucine, Valine and Isoleucine are Branched Chain amino acids (BCAA), which make up one third of muscle protein and are absolutely essential components of a protein supplement.
Next, a protein supplement should be very low in sugar. Look at the carbohydrate content on the nutritional facts label. If there is more than a couple of a gram of sugar per serving, it is not high quality. Total carbohydrates should be no more than 3-4 grams per serving. 100% whey protein isolate is the only type of whey that is lactose free, fat free, and cholesterol free.
A whey protein product should be naturally sweetened. Avoid any product that contains artificial sweeteners because they are known to accelerate brain aging, as well as a host of other detrimental side effects.
Protein supplements should also be fat free or virtually fat free no more than 2 grams per serving and should be cholesterol free.
Finally, there are many soy and vegetable protein supplements, which are particularly popular with vegetarians. Soy is not a complete protein, meaning it does not contain all the essential amino acids, and soy proteins are not as biologically available as animal sources and whey protein, meaning they are not as readily usable by your body. This makes them an inferior protein supplement.
Who needs it and can anyone take protein?
Whey protein is an excellent protein choice for individuals of all ages who value the role of a healthy diet in helping to maintain and improve their health. Whey protein is very, very important for just about everyone but especially for bodybuilders and dieters. Since athletes and bodybuilders work out often, protein levels become depleted. By being a direct precursor to building muscle and essential amino acids, such as glutamine (a muscle enhancer, endurance builder, and muscle deterioration reducer), the content from high quality whey protein not only can, but will help one's muscles recover and grow faster by bring up the levels of protein. With dieting and those wishing to lose some extra fat, whey protein can be very useful because a good intake of protein balances blood sugar levels, while carbohydrates cause blood sugar levels to fluctuate. When the blood sugar levels stay balanced, one is not as prone to rampant eating and has more energy and greater fat loss. Whey protein allows a person to control his or her diet effectively. Most people who want to change their body for the better could benefit from whey protein supplementation
What’s the difference between concentrate and isolate?
Most of the whey protein powders you will find in the market will contain mostly whey protein with some whey protein isolate. There’s also a lot of pure whey protein concentrate and some whey protein isolate. If you compare the two, whey protein isolate is more expensive than concentrate. Whey protein isolate is more expensive because it’s of higher quality, which mean it’s more pure and it has a higher biological value. Whey protein isolate contains more protein with less fat and lactose per serving. Usually, isolate contains 90-98% protein while whey concentrate contains 70-85%.
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