When cats hit their double digits, a few small tweaks to food and water can have a big impact on comfort, energy, and overall health. Here’s a guide: what really changes after age 10, what to feed, and when to visit your vet.
What Changes After Age 10?
As cats age, metabolism and digestive efficiency can shift, and many need more attention to protein quality, calories, and hydration, with care tailored to your unique senior cat. Regular wellness checks help catch issues early and keep plans personalized.
Healthy senior cats generally should not have protein restricted. Maintaining moderate protein (30–45% dry matter) from high-quality sources helps preserve lean muscle. Cats with renal disease are an exception to this. (More on that below.)
Small Weight Changes Matter
If you notice unintended weight loss, especially paired with a big appetite or more drinking/urinating, call your veterinarian. Those are common signs of hyperthyroidism in older cats, and early diagnosis makes treatment far easier.
Weight loss without appetite changes can also be linked to kidney disease; another reason regular screenings (blood tests and urinalysis) are valuable in the senior years.
Hydration: Why Wet Food and Fountains Help
Cats are naturally low-thirst drinkers, and urine often stays highly concentrated on dry-only diets. Studies in healthy cats show that offering nutrient-enriched water (or more palatable water) increases drinking and urine output while lowering urine concentration, a win for the urinary tract.*
Practical tactics: add canned food, try a fountain, offer wider bowls, and clean bowls daily.
Kidney-Friendly Nutrition, Earlier Rather Than Later
For cats with chronic kidney disease (CKD), veterinarians often recommend renal diets that are typically lower in phosphorus, carefully managed protein, and enriched with omega-3s, antioxidants, B-vitamins, and potassium. This reduces uremic crises and supports longer survival. Your veterinarian will decide on timing and brand fit depending on the life stage.
Even before a formal diagnosis, AAHA’s senior-care guidance encourages proactive monitoring and individualized nutrition plans, especially when body condition or lab tests starts to change.**
Calories, Omega3s, Antioxidants, and Cognition
Calorie needs can shift with age (activity, absorption, and muscle mass all play a role). Many seniors benefit from omega-3s (EPA/DHA) for inflammation and joint comfort, plus antioxidants to support brain and organ health. Evidence-guided senior care includes adjusting calories and adding these nutrients as part of a comprehensive plan.***
Should I Switch Foods? How to Transition Smoothly
If your vet recommends a new diet (senior or therapeutic), transition slowly over 7–10 days. Place the new food beside the usual food at home, let your cat choose, and keep bowls clean. Many cats also have strong preferences for water presentations. Experiment with fountains, dripping taps, or wide bowls and let your cat “vote.”
Your Next Steps
We have cat-focused care in neighborhoods across the nation. If your cat is 10+, schedule a senior wellness visit to review weight trends, hydration, and diet. Ask your veterinarian whether a therapeutic or senior-support diet is right for your cat. Veterinary prescribed options (including those from Hill’s Science) may be recommended based on lab results and physical exam findings.
Quick Checklist: Feeding an Older Cat
Protein: Keep moderate, high-quality protein unless your veterinarian advises otherwise for CKD.
Hydration: Add canned food, consider a fountain, and keep bowls clean.
Calories: Adjust up or down based on body and muscle condition scores.
Omega-3s and antioxidants: Useful tools for inflammation and cognitive support, but ask your vet first.
Lab screening: Catch kidney or thyroid changes early; act on weight trends fast. Senior cats should have lab tests done twice a year.
Ready to finetune your senior cat’s diet?
Book a senior wellness exam, bring a 3–5-day food log, and we’ll walk through protein, calories, hydration, and—if needed—therapeutic nutrition options tailored to your cat.
FAQs
Is wet food better for older cats?
Wet food increases moisture intake, and studies show boosting drinking increases urine output and lowers urine concentration (helpful for many seniors).**** Mixed feeding (wet + dry) is a practical middle ground if needed
Should healthy senior cats eat high-protein diets?
In general, yes. Healthy seniors shouldn’t be protein restricted. Aim for moderate protein (30–45% dry matter) from digestible sources to help preserve muscle mass.
My older cat is losing weight, but eating more. What’s going on?
When do vets recommend a kidney diet?
Renal diets are considered at different stages to reduce complications and improve outcomes. Your veterinarian will guide you on timing for your pet’s unique case.
