The quality of whey protein can vary based on several factors. When evaluating the quality of a whey protein product, consider the following criteria. Type of Whey Protein: Whey Protein Concentrate (WPC): Contains a lower percentage of protein (typically 70-80%) with some fat and lactose. It retains more of the beneficial nutrients found in whey. Whey Protein Isolate (WPI): Higher in protein content (usually 90% or more) and undergoes additional processing to remove most of the fat and lactose.
