Costco sued over Orgain protein powder heavy metals

On July 7, 2026, a proposed class action lawsuit was filed against Costco in the U.S. District Court for the Western District of Washington, alleging that the retailer sold Orgain Organic Plant-Based Protein Powder containing high levels of toxic heavy metals, including lead, cadmium, and arsenic, without adequate disclosure. The plaintiffs, seven customers, claim Costco violated the Washington Consumer Protection Act by marketing the products as safe and healthy despite the alleged contaminants. The lawsuit cites independent lab testing and reports from Clean Label Project and Consumer Reports. United States — Texas Attorney General Ken Paxton launched an industry-wide investigation into protein powder manufacturers in June 2026. Orgain has defended its products as safe and compliant with food safety standards. The plaintiffs seek monetary damages and an injunction requiring Costco to disclose heavy metal content on packaging.