Can Renadyl (probiotic supplement) be used in felines?

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Last updated: May 22, 2025View editorial policy

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From the Research

Renadyl is not recommended for use in cats. Renadyl is a probiotic supplement specifically formulated for humans with kidney issues, containing specific bacterial strains like S. thermophilus, L. acidophilus, and B. longum that are designed to metabolize nitrogenous waste in the human intestinal tract 1. Cats have different digestive systems and metabolic needs than humans, and there are no studies supporting the safety or efficacy of Renadyl in felines.

Key Considerations

  • The provided studies focus on the use of probiotics, prebiotics, and synbiotics in humans with chronic kidney disease, with no mention of their use in cats 2, 3, 4, 5.
  • The bacterial strains and dosages used in Renadyl are tailored for human physiology, which may not be suitable for felines.
  • Using a probiotic supplement designed for humans in cats could potentially lead to adverse effects or interactions, especially considering the differences in their digestive systems and metabolic pathways.

Recommendations for Feline Kidney Support

  • If your cat has kidney issues, it's better to use veterinary-approved probiotics specifically formulated for cats.
  • These cat-specific probiotics contain bacterial strains appropriate for feline digestive systems and are dosed correctly for a cat's body weight.
  • Always consult with a veterinarian before giving any supplement to your cat, as they can recommend appropriate kidney support options such as prescription diets, proper hydration, and medications designed specifically for feline kidney disease.

Professional Medical Disclaimer

This information is intended for healthcare professionals. Any medical decision-making should rely on clinical judgment and independently verified information. The content provided herein does not replace professional discretion and should be considered supplementary to established clinical guidelines. Healthcare providers should verify all information against primary literature and current practice standards before application in patient care. Dr.Oracle assumes no liability for clinical decisions based on this content.

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