Cat treats for senior cats and kittens

A 14-year-old and a 6-month-old under the same roof — you've got two cats at completely opposite ends of the life stage spectrum, which means their treat needs are genuinely different. Cats are notoriously fussy to begin with, but seniors often have reduced kidney function and more sensitive digestion, while kittens need higher calories and protein to support growth. The best treats across both ages are high-protein, meat-based, and low in additives — cats of all ages tend to reject anything sweet or grain-heavy. Are these treats mainly for rewarding, training, or enrichment, and does your older cat have any known health conditions like kidney disease or dental issues?

That's really important context — kidney disease in cats means you want treats that are low in phosphorus and protein-light enough not to stress the kidneys, which does narrow things down. Can I ask how Biscuit's vet has framed the dietary guidance — are you on a prescription renal diet for meals, or just being cautious with extras?

Perfect — that gives you a bit of flexibility with treats as long as quantities stay small and the ingredients are clean. For Biscuit, the priority is low phosphorus, low sodium, and minimal fillers. For Pip, almost anything high-protein and meat-based will work. The one product I'd confidently point you to for both is Cosma Snackies — freeze-dried single-ingredient treats made from pure fish or chicken with nothing added. The tuna variety in particular is very low in phosphorus compared to most commercial treats, no salt, no grains, no additives. Biscuit gets the nutritional benefit of a tiny piece of real fish with minimal kidney load, and Pip will go absolutely mad for them because the smell is intense and the texture is interesting. One bag, both cats, no compromise.

Yes — Cosma Snackies are widely available on Amazon UK and come in several single-protein flavours including tuna, chicken, and shrimp. I'd start with tuna for Biscuit given the phosphorus profile, but chicken is a solid backup if he turns his nose up. Keep portions to two or three pieces per session for Biscuit given his kidneys, and Pip can have a few more without concern. They're light, easy to break into smaller pieces, and because they're freeze-dried rather than baked, the flavour stays very concentrated — which matters a lot for older cats whose sense of smell can dull with age.

Great choice — I think you'll find Biscuit is more interested than you expect, and Pip will probably try to steal his share. Just keep them stored sealed because the smell travels and cats have very good memories for treat locations.