This document discusses the utilization of whey, a byproduct of cheese and other dairy productions. It outlines various ways whey can be used, including in whey beverages, whey powder, whey proteins like whey protein concentrates and isolates. It also discusses uses of whey in bakery products, production of lactose, and demineralized sweet whey. The conclusion emphasizes that whey is a nutritious component of milk containing essential amino acids and minerals, and whey protein in particular provides various health benefits.