How much water should a cat drink, and how do you know when they’re drinking too little, or too much?
Cats are complicated creatures, particularly when it comes to ensuring they stay happy and healthy.
Many cats naturally have a low thirst drive
Worryingly, your cat can’t tell you if they’re feeling dehydrated or drinking extra to counteract other discomforts, like heat and nausea.
This means, as a pet parent, it’s up to you to keep a close eye on your cat and determine whether their drinking habits are problematic, or normal.
Water is also essential for a cat’s circulation, digestion, and waste removal.
So all in all, cats must remain hydrated.
This might seem like a relatively simple process, but when you consider the fact that most cats don't like to drink water as much as other animals, tracking hydration can become increasingly complex.
Today, we’re going to look at how much water your cat should actually be drinking, and how you can make sure they’re getting plenty of moisture.
How Much Water Should a Cat Drink (in Short)
A cat should drink on average 60mls/kg per day of water. That means a 4kg cat should be drinking approximately 240mls a day (about one cup). This will ensure their body functions as normal.
How Much Water Should a Cat Drink a Day?
You may have noticed if you’ve cared for cats for quite some time, that they don’t drink nearly as much as other animals.
There’s a reason for this.
Cats are specially designed to have physiological characteristics to help with water intake.
Domestic cats, for instance, can tolerate acute fluid losses of up to 20% of their body weight with very few side effects.
Cats can also produce highly concentrated urine to conserve liquid if necessary – which might be why you notice your cat’s litter tray smelling so terrible from time to time.
The amount of water your cat should drink depends on a variety of factors, including the size of your cat, and the time of the year.
Like human beings and other animals, your cat will probably need to drink a little more during the summer months, when they’re trying to regulate their temperature.
It’s also worth looking at your cat’s diet. If your cat eats mostly wet food, they’re unlikely to need anything close to the standard amount of water of another cat.
The moisture content levels in wet canned food are high. While dry food contains only around 10% water, wet cat food is up to 80% water – perfect for hydration.
The age of your kitty will determine a cat's water intake too.
According to most vets, the average intake requirements for cats of different ages will be:
You can speak to your vet about your specific cat breed if you’re not sure how much water your kitty should be drinking.
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How to Encourage Your Cat to Drink More
It’s hard to determine how much water your cat is actually getting into its system on a daily basis by looking at the water bowl alone.
As mentioned above, there’s a good chance your kitty will get a lot of moisture from their wet food, if they have this in their diet.
However, if you’re concerned your cat might not be drinking enough tap water, there are a few ways you can encourage them to rehydrate. For instance:
How to Tell if Your Cat is Dehydrated
Cats can be picky and awkward with their water consumption.
A cat who appears to be drinking less might not be unwell or dehydrated, but it’s important to keep a close eye on them.
Dehydration is dangerous for any animal, and it can lead to significant dangers, including lethargy, and even organ failure.
Symptoms of dehydration include:
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What Should You Do if Your Cat is Dehydrated?
Most cats, provided they have access to clean water, do a relatively good job of staying hydrated on their own.
However, if you notice signs of dehydration, this could indicate something is seriously wrong.
If you suspect your cat is dehydrated, contact your vet immediately for advice. You can also try some of the following steps:
Dehydration should be addressed by a vet as quickly as possible, particularly if it’s accompanied by other symptoms like panting, lethargy, or vomiting.
This could be a serious sign something is wrong with your cat which needs immediate investigation.
Is Your Cat Drinking A Lot of Water?
Generally, we don’t look at drinking “too much” water as a bad thing. However, if your cat is excessively drinking, this is likely a sign something is seriously wrong.
It’s important as a pet parent to get a good idea of how often your cat naturally visits their bowl or water fountain.
A cat who is drinking too much might be urinating a lot, which could mean you see signs of going to the bathroom outside of the litter box.
You might also notice some diarrhea in certain cats.
If your kitty is drinking excessively, they may just be extremely warm or dealing with something like a hairball they want to get rid of.
However, extra drinking can also be a sign of a more significant disease, so it’s important to have your cat checked by a vet. Some issues which can cause excessive drinking include:
If you believe your cat is drinking too much, you can visit the vet and have a thorough examination completed.
Your vet will usually use various tests to get to the bottom of the issue, including a “CBC”, or complete blood count, “Serum biochemistry” test, and a urine analysis.
What Happens if My Cat is Drinking Too Much or Too Little?
Cats have unusual drinking habits compared to humans and other animals.
If your kitty eats a wet food diet, this is likely a good sign they’re getting the majority of their liquids outside of their water bowl, so you shouldn’t need to worry too much if you don’t see your cat drinking.
However, if you believe your cat seems to be drinking far too much, or they’re not drinking enough, you can encourage them to take in more water.
If their dehydration is mild and their internal organ function is normal your vet may be able to help you to come up with ideas to ensure they drink enough water to fix the acute issue.
If the dehydration is more advanced in your cat, or your feline friend seems to be suffering from an underlying disease causing the dehydration, this could be a sign additional treatments are needed.
Everything from electrolyte fluids to specialist medications could be necessary for some cats.
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How Much Water Should A Cat Drink? The Verdict
Well done on asking yourself, how much water should a cat drink? It is something that can easily be neglected.
Ensuring your cat gets the right amount of liquid into its diet is one of the most important things you can do as a pet parent.
Ultimately, all kitties need a regular supply of freshwater to survive, but they may not need to drink as much as you might think.
Understanding your cat, and paying attention to signs your feline friend might be having an issue with their health is the best way to ensure you stay on top of any potential issues with dehydration.