What are the differences between a protein isolate and a protein concentrate?
An isolate is a protein source where the protein has been separated from the other constituents of the original protein source, such as fat, lactose and dietary fiber. Therefore isolates are a purer form of protein than the original protein source. Protein concentrates are basically the whole, original protein source with the water removed. As a result, a concentrate is a less pure form of protein since it still contains the fat, lactose, and dietary fiber that were in the original source. In general, an isolate has a higher percentage of protein than a concentrate. Isolates should contain at a minimum 90% protein, whereas concentrates can be as low as 30% protein.
