A federal class-action lawsuit filed against Costco on July 7, 2026, accuses the retailer of selling Orgain protein powders that contain unsafe levels of heavy metals.
The legal action was lodged in the US District Court for the Western District of Washington by law firm Hagens Berman.
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The lawsuit claims the products contain lead, cadmium, and arsenic, based on independent testing by The Clean Label Project, Consumer Reports, and third-party laboratories.
Health-Conscious Consumers at Risk
“Many consumers who buy and use protein powder do so routinely as part of a continuing focus on their fitness and health,” said Steve Berman, managing partner and co-founder of Hagens Berman.
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“These same health-conscious consumers have unknowingly ingested alarming levels of toxic heavy metals – lead, cadmium and arsenic – again and again, trusting that Costco’s quality assurance would not allow something like this to happen,” Berman added.
The lawsuit alleges that Costco continued selling the supplements without disclosing the contamination, even while promoting them as having clean nutrition and higher standards.
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The allegations have not yet been proven in court. Costco has not released a public response regarding the litigation.
