More than a dozen protein powders tested by the US consumer group Consumer Reports contained dangerous or concerning levels of lead, according to an investigation published on Tuesday.
The organisation also noted that the average lead level found in these products has increased compared with previous years.
Out of the 23 protein powders tested, more than two-thirds contained more lead in a single serving than what a person can safely consume in a day (0.5 micrograms).
Two of the products contained such high lead concentrations that Consumer Reports advised consumers not to use them at all.
“We do not recommend the daily use of most protein powders because many contain high levels of heavy metals and none are essential to meet your protein goals,” said Tunde Akinleye, lead researcher at Consumer Reports.
Protein-rich foods and supplements have surged in popularity across the wellness industry in recent years, both in the US and Europe, partly because protein increases satiety and helps prevent overeating.
They are also commonly used by athletes aiming to build muscle mass.
However, some health experts warn that Americans already consume more protein than necessary — and additional intake through enriched supplements, shakes, or processed foods may be excessive.
Also read: Forty-six dangerous products flagged by EU alert system
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