Costco Hit With Lawsuit Over Contaminated Protein Powder

WHO:

NY Post - Costco is the defendant in a proposed class-action lawsuit.

Newsweek - Shoppers of Costco are the plaintiffs in the lawsuit.

WHAT:

NY Post - The lawsuit alleges that Costco failed to disclose that its protein powder contained significant levels of arsenic, cadmium, and lead.

Newsweek - The lawsuit specifically targets Orgain protein powder for containing undisclosed heavy metals, including lead.

WHERE:

NY Post - The lawsuit involves Costco, which operates locations across the United States.

WHY:

NY Post - The plaintiffs claim that the presence of toxic heavy metals in the protein powder poses health risks and that Costco did not inform consumers about these risks.

HOW:

NY Post - The lawsuit is categorized as a class action, indicating that it seeks to represent a group of consumers affected by the alleged contamination.

(UPDATED July 9, 2026 15:59 UTC)

Costco is facing a proposed class-action lawsuit filed by shoppers who claim the retailer failed to disclose that its Orgain protein powder contains significant levels of arsenic, cadmium, and lead. The plaintiffs argue that the presence of these toxic heavy metals poses health risks, and they allege that Costco did not inform consumers about these dangers. This lawsuit seeks to represent a group of consumers across the United States who may have been affected by the alleged contamination.