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Costco’s $4.99 rotisserie chicken gets roasted in lawsuit. Here’s what they’re claiming

Two plaintiffs allege false advertising as Costco's chicken contains preservatives despite labeling; the lawsuit claims tens of millions lost and prompts nationwide class action.

  • On Jan. 22, a proposed class-action lawsuit alleges Costco Wholesale Corporation falsely advertised its $4.99 Kirkland Signature Seasoned Rotisserie Chicken as preservative-free despite containing two preservatives.
  • Photographs in the complaint show store signage promoted no preservatives, while the ingredient list listed two chemicals, and plaintiffs say they would not have bought the chickens if informed.
  • Costco Wholesale Corporation said it uses carrageenan and sodium phosphate to support moisture and texture, noting the Food and Drug Administration considers both safe, and it removed 'no preservatives' claims for labeling consistency.
  • The plaintiffs are seeking to bring a class-action lawsuit for purchasers in California and nationwide, alleging Costco Wholesale Corporation violated consumer laws in California and Washington by falsely advertising preservatives.
  • With a price tag under $5, the case arrives as ultraprocessed foods and additives like sodium phosphate and carrageenan come under increased scrutiny amid broader food-safety concerns.
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Costco, the American warehouse club, is facing a class-action lawsuit, accusing it of falsely advertising its popular rotisserie chicken as preservative-free. According to the New York Times and other outlets on the 29th (local time), a woman living in California...

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thedieline.com broke the news in on Thursday, January 29, 2026.
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