Whey Protein Isolate. Whey Protein Isolate is produced by the additional filtering of Whey Protein Concentrate (WPC) through an ion-exchange process. As a result, WPI is lower in fat, carbohydrates and lactose than WPC and higher in protein (over 90%). However, as a consequence of further processing, WPI is lower in milk fractions (active biological compounds) than WPC.

Watson Pharmaceuticals Inc

Wholesale Prices Index

Wholesale Price Index

Wraps Per Inch. The number of wraps of yarn one can do in one inch around a ruler. It can be varied by whether you pack the yarn in tight or wrap loosely, but gives a rough estimate of how thick the yarn is and how close you will want your sett to be.

Wisconsin Package Interface