Powdered protein supplements are very handy if someone is looking forward to dropping some numbers on the weighing scale. Fuelling the body with enough protein can induce the metabolism, and suppress the appetite which in turn helps to lose the stubborn body fat without losing lean muscles. Protein powders are usually made up of one or more types of protein such as whey protein, casein protein, hemp protein, pea protein etc. All these proteins are extremely dense and act as appetite suppressants.