About the Authors

M. Mellema

Affiliation Department of Veterinary Surgical and Radiological Science, School of Veterinary Medicine, University of California Davis, Davis, California, United States of America

M. Stoller

Affiliation Department of Urology, School of Medicine, University of California San Francisco, San Francisco, California, United States of America

Y. Queau

Affiliation Royal Canin Research & Development Center, Aimargues, France

S. P. Ho

Affiliation Department of Preventive and Restorative Dental Sciences, School of Dentistry, University of California San Francisco, San Francisco, California, United States of America

T. Chi

Affiliation Department of Urology, School of Medicine, University of California San Francisco, San Francisco, California, United States of America

J. A. Larsen

Affiliation Department of Molecular Biosciences, School of Veterinary Medicine, University of California Davis, Davis, California, United States of America

N. Passlack

Affiliation Institute of Animal Nutrition, Department of Veterinary Medicine, Freie Universität Berlin, Berlin, Germany

A. J. Fascetti

Affiliation Department of Molecular Biosciences, School of Veterinary Medicine, University of California Davis, Davis, California, United States of America

C. Mohr

Affiliation Department of Pathology, Microbiology and Immunology, School of Veterinary Medicine, University of California Davis, Davis, California, United States of America

J. L. Westropp

jlwestropp@ucdavis.edu

Affiliation Department of Veterinary Medicine and Epidemiology, School of Veterinary Medicine, University of California Davis, Davis, California, United States of America

Competing Interests

Dr. Yann Queau, an employee of Royal Canin, was a coauthor of this study. Royal Canin provided no salary support for any of the authors. Royal Canin provided a grant/contract for us (MM, JLW, JAL) to purchase the NTA equipment used to analyze the urine samples we obtained from the cats in this study. Dr. Queau did not participate in study design, but did help review and edit the manuscript. This does not alter our adherence to PLOS ONE policies on sharing data and materials.

Author Contributions

Conceptualization: MM JLW. Funding acquisition: JLW MM. Investigation: MM JLW NP AJF. Methodology: MM. Project administration: MM JLW. Resources: MM JLW NP AJF YAQ. Supervision: MM JLW. Validation: MM. Visualization: MM JLW JAL. Writing – original draft: MM JLW JAL CM AJF. Writing – review & editing: MM JLW YAQ JAL CM AJF MS SPH TC NP.