Fast facts on whey protein:
Many of the potential benefits are based on single studies and more evidence is required before making definitive judgment.
Whey protein is a mixture of beta-lactoglobulin, alpha lactalbumin, bovine serum albumin, and immunoglobins.
Possible benefits include weight loss and lowering cholesterol.
Possible dangers include nausea and headaches, but at moderate doses, whey protein is not considered dangerous.