Over time, Whey Protein has evolved to fit itself, ever more faithfully, to what was expected of it and the needs of all those for which it represents the keystone of their supplementation. The first to appear was the concentrated whey, whose concentration rate can reach 80%. When, later, appeared the whey isolate, with a purity level of over 90%. Throughout this article, we will see what makes each of them different.
Concentrated whey protein
Concentrated whey is the cheapest and most common whey type of whey protein,
frequently used to enrich a protein diet, to maximize muscle hypertrophy. While the protein isolate normally displays a level of more than 90% pure protein in its constitution, the concentrate reaches a maximum of 89%.
This difference is explained by the fact that concentrated whey contains more carbohydrates (in the form of lactose) and calories, compared to isolate, which does not prevent these two formulas from being often used together during preparation. shakers or as a meal replacement. Despite this lower concentration, concentrated whey remains a good quality protein (provided it is not intolerant to lactose), thanks to the many amino acids it contains. It is best taken at breakfast or after training.
Representing the purest type of whey protein available, whey isolate (also known as ‘whey isolate’) is made up of over 90% pure protein. This supplement is obtained by filtering the whey protein so that it is virtually free of lactose, carbohydrates, fats and cholesterol.
The whey isolate is considered to be a complete protein, with all the amino acids needed for your daily diet, which also contains especially high levels of branched amino acids.
Another interesting factor concerns its high level of leucine which promotes the synthesis of the muscle protein (and, therefore, the muscular growth), also favoring the loss of fat, because of the energy expended by the body to carry out this process. .
In the same vein, for pregnant women who have, of course, more consistent protein requirements, whey isolate offers a rich source of protein. Older people can also see it as a valuable aid, this type of whey can help prevent bone and muscle degradation.
Because of its cost, the whey isolate is mainly intended for people with a fragile digestive system or who digest lactose poorly as well as the most demanding who want a quality product with a reduced amount of carbohydrates. This type of whey protein can also be useful in the dry phase, to reduce the amount of carbohydrates in your diet.
As we have seen in this article, each type of whey has its strengths. Whether it is the protein isolate or the concentrated protein, the whey protein has, in general, excellent properties.
If the protein isolate is in many ways superior to the concentrate, this “purity” comes at a price. Similarly, if the concentration of pure protein is lower for the concentrated protein, the fact that it still maintains a good biological value and that it is more in line with a smaller budget, make it the choice of many athletes.
On the other hand, athletes who are more demanding or who are lactose intolerant will tend towards protein isolate, even at a higher price.