A number of popular protein supplements contain levels of lead that could pose health concerns, according to a new report that tested samples of 23 powders and shakes. facebook.comProtein Powders and Shakes Contain High Levels of Lead Consumer ReportsSome protein powders, shakes contain high levels of lead and other metals, Consumer Reports finds CBS NewsGym Bros Warned About Dangerous Levels of Lead in Protein Powders The Daily BeastUnsafe amounts of lead found in some protein powders, report says The Washington Post