Comment from Anonymous
AnonymousSupportAcademic
Summary: A veterinary student supports the FDA's adoption of relative supersaturation (RSS) as a standardized approach for urinary tract health claims in cat food. The commenter praises the science-based standards but suggests providing more clarity on how these claims should be communicated to consumers on product labels.
2.I am submitting this comment as a veterinary student with an interest in feline nutrition and urinary tract disease. I appreciate FDA CVM’s adoption of relative supersaturation (RSS) as a standardized, science-based approach to support urinary tract health claims in adult maintenance cat food. This guidance provides clearer and more precise standards for dietary management of feline urolithiasis and reflects current veterinary understanding beyond the use of urine pH alone. The guidance also establishes a strong foundation for future research by clearly defining RSS targets, study design expectations, and safety parameters. This level of standardization will support consistency across industry studies and help advance evidence-based nutritional strategies for urinary tract health. One area for potential improvement is additional clarification on consumer-facing labeling. Further guidance on how RSS-based urinary health claims should be communicated to pet owners could help prevent misunderstanding and better distinguish general health support from therapeutic diets. Thank you for the opportunity to comment on this guidance.