WPI - Whey Protein Isolate

Whey Protein Isolate or WPI is the purest form of protein available and is widely used in bodybuilding and sporting circles as food for recovery and growth of muscle tissue after training.  WPI is derived from whey a byproduct of the cheese making industry in its raw state it used to be fed to pigs to beef them up for market. However now it is refined by several different processes which produce both whey protein isolate and whey protein concentrate.

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