Can Cats Drink Spoiled Milk?

If a cat wants to consume spoiled milk, it may look and act differently from a dog or cat.

In minutes, one can notice that their demeanor has changed. Some cats will merely turn their head and refuse to drink the spoiled milk.

So, can cats drink spoiled milk? No, they can’t!

If a cat drinks spoiled milk, they may experience some unpleasant side effects but it won’t kill them. Cats aren’t as fussy as dogs when it comes to their milk intake.

If a cat drinks spoiled milk, it can experience gastrointestinal distress like vomiting and diarrhea. However, these side effects will not kill the cat if it’s treated adequately.

Cats can also develop an upset stomach if they drink spoiled milk that is too hot or too cold. Furthermore, cats can contract a bacterial infection if they drink spoiled milk that is contaminated by bacteria.

Can Cats Drink Spoiled Milk?

Milk in any form is harmful to cats.

Cats are lactose intolerant which means they generally can’t digest milk properly.

This does not, however, mean that they can drink spoiled milk.

A cat will drink milk, but it won’t digest it properly and any undigested elements will find its way to the intestinal tract where it can cause harm.

So, if you’re curious about the answer to this question and want to know whether your cat can drink spoiled milk, the answer is NO.

Lactose intolerance occurs as cats aren’t able to digest the sugars found in milk in the same way humans can.

This is the precise period when cats need calcium to develop strong bones and teeth, which explains why they are so drawn to milk.

However, the intolerance can result in symptoms such as vomiting and diarrhea and can cause dehydration.

And the cat will most definitely die if it gulps down a large amount of sour milk.

What If My Cat Drinks Spoiled Milk?

Stomach upset, such as vomiting and diarrhea, is the most common symptom of a cat that consumed spoiled milk.

If the kitten hasn’t consumed spoiled milk before, then it’s likely to become a bit dehydrated due to the vomiting and diarrhea.

You’ll need to get kitten milk replacer to hydrate it, and the vet will prescribe antibiotics to help it recover faster.

Like so many others, the connection of cats to cheese is strong and as old as time itself.

This is due to the fact that, although lactose content in dairy products is the reason why cats can’t digest it properly, cats will gorge themselves on cheese due to its strong taste.

The main reason is cheese contains Casein, a protein similar to casein found in milk.

Can Cats Drink Expired Milk?

Other than a bad taste, a little cheese isn’t likely to harm your cat too much.

Excessive consumption of spoiled milk may, however, cause food poisoning in kittens because bacteria growing in spoiled milk can cause severe illnesses and diseases.

Symptoms caused by poisoned milk include: Vomiting, Diarrhea, High feverLoss of vigor and appetiteInflammation of the stomach.

Milk should be stored in the fridge or freezer so it doesn’t spoil.

It should be considered a non-food substance for your cat but should not be fed to him regularly since it may lead to obesity due to its high lactose content and lower protein content.

Don’t overfeed your cat with dairy products as it may lead to serious health complications.

A couple of times a week is okay for treats but too much can lead to severe health issues and digestive problems.

Limit it to once and a while and give him something healthier and less fatty instead so he gets the right nutrient balance in his diet.

Adult cats should avoid drinking milk since they can’t digest it properly.

While lactose may be digested by kittens, they gain nutrients from the protein in milk.

Is It Okay to Give Spoiled Milk to Cats?

No, it is not a good food to give to cats because it can cause diarrhea and vomiting.

Even fresh milk may hurt them because the lactose in fresh milk is not easily digested by cats.

As a consequence, cats may vomit or suffer from diarrhea when drinking it.

If the condition gets worse, your cat might have to see a doctor and undergo medical treatment for milk poisoning.

If the cat is vomiting, it should be given rehydration solution from a veterinarian’s clinic.

If your cat has some allergies and is not sick, you can feed them powdered milk to treat stomach upsets.

If the cat looks to have lost most of its nutrients, you can also feed it with canned pumpkin or a mix of pumpkin, banana, and yogurt.

Cats are lactose intolerant and do not have the proper enzymes to digest milk.

Be on the lookout and make sure that your pet only gets the right amount of nutrition it needs to be happy and healthy.

As a consequence of the spoiled milk, the cat may get stomach cramps, diarrhea, or vomiting.

If the kitten gets dehydrated, it will decrease its energy and will directly affect its health.

When it comes to consuming dairy products such as milk, there are a lot of things that have to be taken into consideration.

One of the most common causes is feeding kittens with milk that has already been consumed or spoiled by other animals in the household.

Is Spoiled Milk Harmful to Cats?

Spoiled milk may cause food poisoning, resulting to nausea, vomiting or diarrhea in kittens.

Cats won’t die from drinking spoiled milk but it can lead to severe health issues if not treated appropriately.

Cats will drink milk if it is served chilled but they don’t digest it properly if it’s fed at room temperature or any other temperature.

Cats may also develop an upset stomach if they drink too much milk at one feeding and may not tolerate the milk well if it’s served at room temperature.

Also Read: Can Cats Drink Buttermilk?


In conclusion, even though cats can’t drink spoiled milk, they can drink fresh or pasteurized milk from other animals like cows and goats without being affected.

Sour milk is raw milk that has started fermenting as a result of the bacterial action of the lactobacillus present in the milk.

When milk spoils, it ferments due to the action of bacteria which will cause diarrhea and vomiting in cats and other domesticated animals.

The scent is noticeable to humans and unpleasant to animals with sensitive olfactory organs such as cats.

As a result, giving sour milk to your cat can cause stomach upset and diarrhea which can cause serious health problems if not treated appropriately.