Friday, December 18, 2009

Whey Protein Isolate

If you have been following my previous posts you may have a pretty good idea what whey protein and whey protein concentrate is but now the question arises, What is whey protein isolate?

Whey protein isolate is the purest form of whey protein. It has the highest Biological Value (BV) for protein i.e. about 159. (The Biological Value (BV) of a Protein is a value that measures how well the body can absorb and utilize a protein. As a result, proteins with the highest BV promote the most lean muscle gains). The higher BV of whey protein isolate means that it is more quickly and readily available to the body therefore making it superior for pre and post workout protein supplementation. Whey protein isolate consists of about 90-98% protein by weight. Whey protein isolate also has a very small amount of lactose in them. Therefore it is perfect for lactose intolerant people, or they can use the whey protein alternative. Also due to the large percentage of pure protein the isolate has a very small amount of fat in them so it is perfect for diet conscious people.

But all these advantages come at a price. Whey protein isolate is way more expensive than whey protein concentrate. Also since the isolate is produced by further filtering the concentrate, this filtration removes some of the alpha lactoglobulins and lactoferrins that are important immune boosters.
Whey protein concentrate on the other hand has a much lower biological value (BV) i.e. 104. The lower Biological value of the concentrate provides a more "time released" mechanism helping to maintain a positive nitrogen balance and keep the body in a continually anabolic state. The amount of protein in the concentrate can vary greatly. The levels of protein can be anywhere from 30% to 75%. Also whey protein concentrate has a high level of lactose and fat in them, making it impossible for lactose intolerant to consume them. They should either consider the isolate or the alternative.


  1. You can get yourself a flavor of your choice like vanilla or chocolate. whey protein isolate not only helps in boosting the immune system but also serves best during workout sessions and helps in recovery and growth of muscles. It is a healthy dietary supplement that assists in muscle growth. It is also helpful for diabetic patients who are looking to control their blood sugar amounts.

  2. Hello Dude,

    Whey protein isolate is a healthy dietary supplement regularly employed by muscle builders, as well as some athletes, to assist restoration after exercises and to assist muscle growth. Thanks a lot!

    Creatine Supplement

  3. hi have any of your found a side effect from too much whey protein like bloated stomach lines?

    this link below says whey protein can cause water style bloat effect over the abs?.


  4. a good All in one supplement is a nice alternative to a stand alone whey protein drink