Protein (whey/isolate)

Whey protein is a dairy-derived protein complex, separated from milk during the cheesemaking process. It is considered a 'complete' protein, meaning it contains all nine essential amino acids necessary for human dietary needs. Whey protein is particularly rich in branched-chain amino acids (BCAAs), especially leucine, which plays a significant role in muscle protein synthesis. It is rapidly digested and absorbed compared to other protein sources, contributing to its popularity as a dietary supplement. There are several forms of whey protein, primarily distinguished by their processing and purity: whey protein concentrate (WPC), whey protein isolate (WPI), and whey protein hydrolysate (WPH). WPC typically contains lower protein content (25-89%) and higher amounts of lactose and fat. WPI undergoes further processing to remove most of the fat and lactose, resulting in a higher protein content (typically >90%). WPH is pre-digested, meaning the larger protein chains are broken down into smaller peptides, which may facilitate even faster absorption.