Is My Cat Drinking Lots of Water Because of Stress?

Yes, it's possible. Stress-induced polydipsia is documented in cats, though it's less common than the medical causes. A study from the University of Lincoln's Animal Behaviour Cognition and Welfare Group found that environmental stressors, including changes in household routine, new pets, and construction noise, can alter drinking and eating patterns in domestic cats for periods of several days to several weeks.

How Much Water Should a Cat Drink Per Day?

The general guideline from the International Society of Feline Medicine is 40 to 45 ml per kilogram of body weight per day, inclusive of moisture from food. For a 4.5 kg cat, that's roughly 180 to 200 ml total. Adjust upward for dry food diets and warm climates.

Can a Change in Cat Food Cause Increased Water Drinking?

Absolutely. Switching from a high-moisture wet food to a dry kibble, or even to a wet food with a lower moisture percentage, will almost certainly increase your cat's voluntary water intake. It's a normal compensatory behaviour, not a sign of illness on its own.

Why Does My Cat Drink So Much Water? Causes & Concerns.

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