What Is Whey Protein And How Is It Used?

Whey protein is very easy to digest and has one of the highest protein quality ratings amongst the various protein sources to be found in the body. It consists of a mixture of globular proteins isolated from whey (the liquid which is formed as a by-product of cheese production). Cow’s milk typically consists of 20 per cent whey protein and 80 per cent casein protein. Proteins are essential for developing and maintaining muscle cells.

Whey is removed for the cheese to be processed, and after this the fat is removed from the whey and what remains is prepared for human food products. The whey can simply be dried, or it can be processed in a more concentrated form by removing other non-protein materials. It can also be denatured by heat to make it safer for humans.

For human consumption, whey protein often comes in the form of whey protein powder, of which there are three main varieties: concentrates; isolates and hydrolysates. Often these powders will be taken by bodybuilders or other athletes because of their ability to help build up and maintain lean muscle cells.

Whey protein concentrates have a fairly low level of fat and higher levels of bioactive compounds in the form of lactose. Isolate is the purest form of whey protein as it has been further processed to make it virtually fat-, lactose- and carb-free. However, this does cost more than the concentrate when taken as a supplement so this is something that the user would have to consider.

Hydrolysates are proteins which have been pre-digested and partially hydrolised to make them easier for the body to absorb. However, their cost tends to be even higher so they may not be practical for frequent use. There is also another option, whey protein blends, which are a mixture of both concentrates and isolates. This makes them a popular choice for the average athlete as they are relatively low in fats whilst being a little easier on the bank balance.

Whey protein powder is generally taken as a shake, either before or after exercising although some people will also add it to their meals when cooking or perhaps even sprinkle it on their cereals. Whichever way you choose, it is an easy and convenient way for those who use up a lot of energy in their day-to-day life to get the right levels of protein in their systems.

Aside from the benefits it holds for bodybuilders and other athletes, there has also been some interest in the other health benefits whey protein may have. As a source of amino acids, its possible role in reducing the risk of serious illnesses such as heart disease, diabetes and cancer is still the subject of ongoing research. As whey is a source of branched chain amino acids, which are used by the body to fuel muscles and stimulate protein generation, it is thought that it may help to speed up recovery in some cases too.

Whether the above proves true or not, it is clear that all the many possible benefits of whey protein have yet to be discovered. If you do decide to take it as a dietary supplement, just make sure you purchase it from reputable supplier whose products come certified from a recognised body.