FDA. 2023. “Nestlé Purina Petcare Company Voluntarily Recalls Purina Pro Plan Veterinary Diets El Elemental Dry Dog Food in the U.S. Due to Potentially Elevated Vitamin D”. https://www.fda.gov/safety/recalls-market-withdrawals-safety-alerts/nestle-purina-petcare-company-voluntarily-recalls-purina-pro-plan-veterinary-diets-el-elemental-dry
Petful. 2023. “Recalled: Purina Pro Plan Veterinary Diets EL Elemental Dog Food”. https://www.petful.com/recalled/purina-pro-plan-veterinary-diets-el-elemental/
Pet food processing. 2023. “Purina recalls dry dog food due to vitamin D toxicity”. https://www.petfoodprocessing.net/articles/16648-purina-recalls-dry-dog-food-due-to-vitamin-d-toxicity
Dog Food Advisor. 2023. “Purina Recalls Pro Plan Vet Diet Product Due to Elevated Levels of Vitamin D”. https://www.dogfoodadvisor.com/dog-food-recall/purina-recalls-pro-plan-vet-diet-product-due-to-elevated-levels-of-vitamin-d/