How to Get Your Cat to Drink More Water (And Prevent Kidney Disease)

It is a near-universal frustration among cat owners: you set down a pristine, fresh bowl of water next to their food dish. Your cat sniffs it, looks at you with disdain, and walks away. Later, you find them licking the damp bottom of the shower, drinking from a puddle outside, or pawing at your glass of water on the nightstand.

Why do cats seem to resist drinking from their designated bowl? The answer is in their genetic blueprint.

Domestic cats evolved from African wildcats — desert-dwelling predators. Because standing water was scarce in their natural environment, they evolved a metabolism designed to obtain most of their daily hydration from the blood and tissue of their prey. (A mouse is roughly 75–80% water.) As a result, a cat’s thirst drive is naturally low. They simply do not feel the urge to drink until they are already somewhat dehydrated.

This works perfectly in the wild, but it is a problem in a domestic setting — especially for cats fed dry kibble, which contains less than 10% moisture.

The Consequences of Chronic Dehydration

When a cat does not drink enough, their kidneys must work harder to concentrate their urine, preserving moisture. Over years, this persistent workload damages the nephrons in the kidneys.

Chronic dehydration is the leading contributing factor to Feline Lower Urinary Tract Disease (FLUTD), life-threatening urethral blockages in male cats, painful bladder stones (struvite and calcium oxalate crystals), and ultimately chronic kidney failure — the leading cause of death in senior cats.

If you want your cat to live a long, pain-free life, supporting their hydration is essential. Here are six practical methods to help your cat drink more.

1. Switch to Canned Wet Food

This is the single most effective change you can make. It is nearly impossible for a cat on an exclusive dry food diet to compensate for the lack of moisture through bowl drinking alone.

Switching entirely (or even partially) to canned wet food mimics their natural ancestral diet. Wet food is typically 75–80% moisture. By the time they finish a meal, they have already consumed a meaningful volume of water without even approaching a bowl.

Pro tip: Add three or four tablespoons of warm water to their canned food and stir it into a slightly soupy consistency. Most cats find the gravy-like texture appealing and will lap up the extra liquid readily.

2. Separate the Food and Water Bowls (The Carcass Rule)

In the wild, a cat will not drag a fresh kill to a watering hole and eat right next to the water source. Instinctively, they associate the area around a kill with contamination.

If you place the water bowl directly next to the food bowl, your cat’s predatory instincts may cause them to avoid the water, as the brain registers it as potentially contaminated.

Simply moving the water bowl to the other side of the kitchen — or better yet, into a different room like a bathroom or hallway — often produces a noticeable increase in drinking.

3. Buy a Cat Water Fountain

Cats are suspicious of still, stagnant water. In nature, a puddle is a potential source of bacteria and parasites. Running water from a stream is fresh and oxygenated.

This is why your cat bolts into the bathroom when they hear the tap turn on. A ceramic or stainless steel water fountain that continuously circulates and filters the water plays to this biological preference. The sound of moving water also serves as an auditory reminder to drink.

Important note: Plastic fountains eventually develop micro-scratches that harbor bacteria and slime, which can cause feline chin acne. Always choose stainless steel or high-glaze ceramic, and wash the fountain weekly.

4. Provide Multiple Glasses or Mugs Around the House

Many cats flatly ignore the low, wide bowls sold at pet stores but are fascinated by their owner’s tall water glasses on the bedside table.

Instead of fighting this, use it. Place wide-brimmed glasses, mason jars, or ceramic mugs in safe spots around the house — on sturdy side tables, windowsills, or nightstands. Cats are opportunistic drinkers. If they pass a glass of water on their usual patrol route, they are likely to stop for a few laps.

5. Pay Attention to Whisker Fatigue

A cat’s whiskers are complex tactile sensors packed with nerve endings. If a water bowl is too narrow or deep, the cat’s whiskers press against the sides every time they lower their head to drink.

This repeated contact is uncomfortable and can lead to “whisker fatigue,” a form of sensory overload that causes the cat to avoid the bowl. Always use wide, shallow bowls that allow the cat to reach the water surface without their whiskers touching the sides.

6. Offer Flavored Broths and Hydration Supplements

For an elderly cat with established kidney disease, or a cat recovering from surgery who needs hydration but refuses plain water, you may need to make the water irresistible.

• Tuna water: Use a can of tuna packed in plain water (not oil, never with added salt). Drain off the liquid and mix one teaspoon into their water bowl. The pungent smell encourages drinking. (Give any remaining tuna as a small treat or discard it — don’t feed large amounts of canned tuna regularly.)
• Low-sodium chicken broth: Must be 100% plain and contain no onions or garlic, which are toxic to cats.
• Veterinary hydration supplements: Products like Purina Pro Plan Hydra Care are formulated specifically to boost hydration in cats who resist drinking.

Conclusion

Do not wait until your cat is straining in the litter box or has been diagnosed with kidney disease to think about their water intake. By understanding their desert biology, separating food and water stations, switching to wet food, and investing in a good fountain, you can encourage your cat to drink the water they need to stay healthy.