Some protein powders, shakes contain high levels of lead and other metals, Consumer Reports finds

Some protein powders and shakes contain unsafe levels of lead, according to a Consumer Reports investigation .

In the report, published Tuesday, Consumer Reports analyzed 23 protein powders and shakes — a range of dairy, beef and plant-based protein supplements — and found that more than two-thirds of the products contained more lead in a single serving than what experts say is safe to consume, about 0.5 micrograms per day.

"Protein powders and shakes have become immensely popular and are part of a daily routine for many people who are focused on consuming more protein in their diet," Brian Ronholm, director of food policy at Consumer Reports, said in a news release. "Our tests found that toxic heavy metal contamination in protein supplements is widespread and has worsened since we fir