The protein craze is heavy metal, literally: bombshell investigation finds unsafe lead amounts in two-thirds of top powders for sale

business • 10/16/2025

Paris Martineau said Consumer Reports found “concerning levels” of heavy metals in a 2010 investigation, but the risks have been growing ever since.

But an extensive investigation by Consumer Reports (CR) published on Oct. 14 reveals an inconvenient truth: much of this protein comes contaminated with toxic heavy metals. Martineau led CR’s new round of testing on protein powders and shakes, the pu... [5881 chars]