Cat Senior Nutrition and Welfare

Nutritional needs of cats change significantly with age, and appropriate senior diets are essential for maintaining quality of life in older cats.

Key Facts

Cats are considered senior from age 11 and geriatric from age 15, with many living to 20 or beyond.
Older cats show reduced digestive efficiency for protein, requiring higher-quality protein sources.
Chronic kidney disease affects over 30% of cats over 15, requiring dietary phosphorus restriction.
Hyperthyroidism is the most common endocrine disease in senior cats and affects nutritional needs.
Dental disease in senior cats impairs ability to eat, contributing to weight loss and malnutrition.

Welfare Considerations

Senior cats frequently suffer from nutritional deficiencies that reduce quality of life when owners continue feeding diets designed for younger cats. Older cats often lose muscle mass (sarcopenia) even when weight appears stable, a condition requiring higher-quality protein intake. Regular weight monitoring, body condition scoring, and annual blood testing enable early detection of conditions requiring dietary management. Feeding wet food to senior cats helps maintain hydration important for kidney function.

What You Can Do

Schedule annual blood and urine testing from age 10 to detect early organ disease.
Switch to senior-formulated food at age 11 after discussing with your vet.
Monitor body weight monthly in older cats — even 10% loss warrants veterinary assessment.
Feed primarily wet food to senior cats to support hydration and kidney health.
Assess dental health regularly and pursue dental treatment to maintain pain-free eating.