Today, the sale of whey protein continues to increase steadily. Let us understand what makes whey powder so beneficial to building muscles and fat burning? Well, whey protein is one of the highest sources of amino acids of any natural food. Whey protein is superior to many other proteins because it is absorbed by the body very rapidly, so it begins working soon after ingestion. This makes it perfect for consumption after a game or workout, when your body needs a quick shot of protein to repair itself. It can increase lean muscle, cut recovery time and raise your metabolic rate; which is the rate at which you burn calories. In addition, some athletes consume whey protein the first thing in the morning as a liquid breakfast. It is a good way to put nutrients back into your muscles after long hours of sleep leaves them depleted. When shopping Whey Protein Online , you will probably come across two types: whey protein isolate and whey protein concentrate. Of the two, whey protein isolate is the purest form. The fat and lactose that were present in the whey after it is derived from milk is removed and what is left is approximately 90 percent pure protein with zero cabs and fat. Whey protein concentrate contains more lactose and fat than isolate but is usually less effective and less expensive than isolate. Take care that most protein powders have a blend of isolate and concentrate so they can lower production cost and still use the word "isolate" in their product to raise the perceived value of the product.