business
Costco hit with lawsuit alleging protein powder sold in stores contains 'dangerous' levels of lead, arsenic
By WJBK at FOX 2 Detroit (WJBK) - News
· July 9, 2026
· 1 min read
Costco has been hit with a class action lawsuit alleging that one of the products it sells contains "dangerous" levels of heavy metals, including lead, arsenic and cadmium.
Why this matters in The Detroit
The lawsuit against Costco raises concerns for Detroit residents who shop at the warehouse club. As a major retailer in the area, Costco's product safety record has a direct impact on the health and well-being of local consumers. The presence of heavy metals like lead, arsenic, and cadmium in protein powder is particularly troubling, given the popularity of fitness and wellness products among Detroiters. Local health advocates may be watching this case closely, as it could have implications for the broader issue of consumer protection in the city. Detroit's consumers will likely be interested in knowing how Costco plans to respond to these allegations and what steps the company will take to ensure the safety of its products. The outcome of this lawsuit could also influence how other retailers in the area approach product safety and testing.
About this story
Original reporting by FOX 2 Detroit (WJBK) - News . The Detroit surfaces reporting from trusted publishers and adds local editorial context so readers can quickly understand what a story means for their community. We attribute every source, link to the original report, and follow a documented editorial standards policy. To understand how stories are selected and reviewed, read our about page .
For the complete original report, visit FOX 2 Detroit (WJBK) - News . Have a tip or correction? Contact our newsroom .
Category: business ·
Published: July 9, 2026 ·
Source: FOX 2 Detroit (WJBK) - News ·
Reading time: 1 min
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Frequently asked about this story
What is this story about? Costco has been hit with a class action lawsuit alleging that one of the products it sells contains "dangerous" levels of heavy metals, including lead, arsenic and cadmium.
When was this published? This article was first published on July 9, 2026 by FOX 2 Detroit (WJBK) - News and curated for The Detroit readers.
Who reported this story? This story was reported by WJBK at FOX 2 Detroit (WJBK) - News. To learn more about how The Detroit selects and reviews stories, see our editorial standards .
Where can I find related coverage? See more business coverage from The Detroit, or browse our daily briefing and topic hubs .
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