What happens if a renal cat refuses the renal food?

Refusal is common: renal diets can be less palatable and uraemia blunts appetite. The first rule is that a cat must never fast: a cat that durably refuses the diet and eats nothing risks hepatic lipidosis. You then play on presentation, moisture, or another accepted food, on veterinary advice (WSAVA, 2020). Expert deep dive ### Why does a renal cat refuse its diet? Uraemia causes nausea and lower appetite, and some renal diets are less palatable than standard foods. Forcing a food during a bout of nausea creates a lasting, sometimes permanent taste aversion: the cat links the food to feeling ill. The transition must therefore be slow, over ten to fifteen days (WSAVA, 2020). A cat that refuses is not being "fussy": it is often a clinical sign worth reporting. ### Which solutions help with refusal? Several levers exist: offer the wet version of the diet, warm it to release aromas, split meals, cut stress, and try several renal diets of differing palatability. Surprising fact: a cat eating an imperfect but accepted food is often better, short term, than a cat fasting in front of the ideal diet, because feline anorexia is a metabolic emergency. The vet can prescribe appetite stimulants and anti-sickness drugs to restore intake. Comparison table | Cause of refusal | Possible response | When to consult | |---|---|---| | Uraemic nausea | prescribed anti-sickness drug | refusal of several meals | | Low palatability | wet version, warmed food | weight loss | | Established aversion | switch renal diet | fasting over 24 h | | Stress | quiet, split meals | associated dullness | Petipedia's take Petipedia stresses the "never let a cat fast" rule, directing any lasting refusal to the vet rather than to force-feeding.