Vet Blog

02/25/09

Why is my Dog Drinking More Water?
Dr. Eric Barchas, DVM

629141_1190332701.jpgMy dog is drinking a huge amount of water. He has
a 2.75 gallon water dish and we fill it every day.
He’s eating less as well. Could he have a
kidney problem?

Sarah
MO

You will always get a vet’s attention by telling him that your pet is drinking more water than he used to. Drinking excessive amounts of water is a symptom of a number of diseases and syndromes. Common causes of increased thirst include kidney disease, diabetes, metabolic conditions, bladder problems, glandular problems, and certain types of cancer.

Decreased appetite in combination with excessive thirst is a troubling combination of symptoms.

I strongly recommend that you have a veterinarian assess your pet. A panel of blood and urine tests will almost certainly give you insight into the problem. The sooner you do this, the more likely it is that you will be able to treat the condition.

For more information on changes in water consumption in pets, please visit my website.

Photo: Fortunately, Jackie doesn’t look like she’s drinking all of that water.

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12/27/08

Study Suggests That Cats Prefer Tap Water Over Purified
Dr. Eric Barchas, DVM

658420_1197260837.jpgSeveral common syndromes in cats, such as kidney disease and irritation of the bladder and lower urinary tract, are helpfully treated by enticing cats to drink more water. Unfortunately, the age-old adage about mankind’s inability to force horses to drink also applies cats.

Cats are picky consumers of water. It is widely accepted that cats will drink more if multiple sources of water are available, and if the water is very fresh. Some cats seem to prefer water that is continuously circulated.

A recent study outlined in the November, 2008 North American Veterinary Conference Clinician’s Brief sought to answer another question: do cats generally prefer tap water or purified water? Here is a quote from the Brief.

The drinking water behaviors and preferences in cats were investigated using cats in a rescue center. The study was double blinded and each cat was exposed to 2 water sources (local tap water and purified water) over a 48-hour period. The bowls were identical in shape, different in color, and the amount of water consumed was measured and the bowl refilled every 12 hours . . . [t]he results showed that cats drank more water during the day than night. The only factor found to be significant on statistical analysis was the water source: cats preferred tap water over purified water.

In my opinion this study is too limited in scope to draw the definitive conclusion that all cats should be offered only tap water. But it does suggest that purified water is not necessarily the best choice for cats.

About the photo: Alita seems to like her water straight from the tap!

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