We can imagine how worrying it must be so see your dogs not feeling well. We do apologize that they had to experience this, and we appreciate you reaching out to us and sharing your concern. The quality and safety of our products are our top priorities, and we use only high-quality ingredients that meet our strict code of standards.. We take this type of complaint very seriously. We want to further assist you and gather additional information to learn more about your dogs and their experience with our recipe, please call us at 1-800-778-7462 (800-7PURINA). We're available Monday - Friday: 8 am - 6 pm CT and Saturday: 8 am - 5 pm CT, and we look forward to speaking with you soon. - The Dog Chow Team