Costco Accused of Concealing Heart Risks in Kirkland Grain-Free Dog Food

Costco is accused of misleading customers by marketing its Kirkland Signature Nature’s Domain grain-free dog food as healthy and safe while allegedly concealing potential cardiac risks to pets. A proposed class action lawsuit filed in late June 2026 that points to scientific studies linking grain-free diets high in certain ingredients to dilated cardiomyopathy, a potentially […] The post Costco Accused of Concealing Heart Risks in Kirkland Grain-Free Dog Food appeared first on The Daily Hodl.