Wet food for British Shorthair kidney health

Your vet is giving you good advice — at eight years old, a British Shorthair is firmly in middle age, and the breed is genuinely predisposed to kidney issues. Increasing wet food is one of the most effective things you can do, because cats are poor drinkers by nature and that extra moisture makes a real difference to kidney workload over time. To point you toward the right food specifically: is your cat on any medication, and has the vet mentioned whether kidney function is already reduced, or is this more of a preventive step? Also, what are you currently feeding?

That's actually the ideal time to make the switch — catching it before values go out of range gives you real room to slow progression. The challenge with fussy British Shorthairs is that a lot of renal foods have a reputation for being unpalatable, which is a problem if he won't eat it. What texture does he tend to prefer — pâté, chunks in gravy, something else? And is he a good weight, or running lean or heavy?

Good to know — that narrows it down nicely. My recommendation is Royal Canin Renal wet cat food, specifically the pouches in gravy or jelly. It's formulated to support kidney function with controlled phosphorus and protein levels, which is exactly what you need at this stage — phosphorus restriction is one of the most evidence-backed interventions for feline kidney health. Royal Canin also tends to have better palatability than some other renal foods, which matters a lot for a fussy cat. The pouch format means you can phase it in alongside what he's used to, which helps with acceptance. Given his weight, the controlled protein levels are a bonus too — it won't be adding excess load. I'd suggest starting with a mixed pack to find which gravy variant he takes to best before committing to a case.

Completely removing dry isn't strictly necessary at this stage, but I'd aim to make wet food the majority of his diet — something like 80 to 90 percent of calories from wet if you can get there. The main concern with dry food for a cat with early kidney changes is that it contributes almost nothing to hydration, and cats rarely compensate fully by drinking more water. If he does still get some dry, look for a lower-phosphorus option rather than a standard supermarket biscuit. But don't stress about perfection — the biggest win here is simply getting a lot more moisture into him consistently, and the Royal Canin Renal pouches will do the heavy lifting on that.

Perfect approach. Give it a week or two of gradual introduction mixed with his current wet food — sudden switches often cause rejection with fussy cats, so slow is better. If he takes to it well, it's worth keeping a case on hand and booking a follow-up blood panel in six months so you can see whether the dietary change is having an effect. You're in a good position — catching this early and acting on it makes a real difference long-term.