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Whey protein isolate (WPI) is a highly refined form of whey protein that undergoes additional processing compared to whey protein concentrate. Here's a detailed description of whey protein isolates:
Composition and Characteristics
Protein Content: Minimum 90% protein by weight on a dry basis
Fat: Typically less than 1%
Lactose: Usually less than 1%
Moisture: Generally 4-5%
Minerals: Approximately 2-3%
WPI is characterized by its high protein purity and minimal fat and lactose content.