Costco Sued Over Rotisserie Chicken Preservatives
Analysis based on 9 articles · First reported Jan 28, 2026 · Last updated Jan 29, 2026
The class-action lawsuit against Costco could negatively impact its stock price due to potential monetary damages and the need to update labeling, affecting investor confidence. The event also highlights increasing consumer scrutiny on food labeling, which could influence other food retailers and producers.
Costco is facing a class-action lawsuit filed by Bianca Johnston and Anastasia Chernov in the United States — United States District Court for the Southern District of California. The lawsuit alleges that Costco falsely advertised its Kirkland Signature Seasoned Rotisserie Chicken as containing 'no preservatives,' despite the product including sodium phosphate and carrageenan. These ingredients are listed in small print on the packaging, contradicting prominent in-store and online signage. The plaintiffs claim Costco has cheated customers out of millions of dollars and violated consumer protection and unfair competition laws in United States — California and United States — Washington (state). The proposed class seeks unspecified monetary damages and a court order for Costco to update its labeling and advertising. In response, Costco stated it has removed preservative-related statements from its signage and online presentations to maintain consistency.
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