Whey protein is a popular supplement among fitness enthusiasts and athletes because it helps build and repair muscle tissue. However, there are other terms that can be used to refer to this nutritious protein. These include milk protein isolated, whey isolate, and whey concentrate. Milk protein isolated is a type of whey protein that has been specially filtered to remove the lactose and fat. Whey isolate, on the other hand, is a type of whey protein that has been processed to remove almost all of the lactose and fat, leaving only the protein. Whey concentrate is a less-processed version of whey protein that still contains some lactose and fat. Regardless of how it's referred to, whey protein is a powerful supplement for athletes looking to support muscle growth and recovery.