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Can Cats Drink Milk? Is Milk Bad for Cats? Separating Fact from Fiction

Written by Ryan Gliozzo

Index:

Can cats drink milk? Discover the truth about feeding your feline milk, common misconceptions, and the best alternatives to keep your cat healthy.
A cat standing on a chair and drinking a glass of milk.

Unveiling the truth: Is milk really healthy for cats?

We’ve seen it in many films and TV shows: a purring cat, contently lapping up a bowl of milk, seemingly in their own little heaven.

For years, we've believed this to be the pinnacle of comfort for our feline friends. But what if our well-meaning is actually causing harm? It's a question that many cat owners have pondered: can cats drink milk?

The truth about the relationship between cats and milk is more complex than we may originally be led to believe. Additional care becomes necessary when we consider lactose intolerance in cats, a common condition where felines struggle to digest milk as they age.

Investigating this dairy dilemma can help ensure that what we offer is healthy for cats rather than a traditional gesture that may cause discomfort.

So, it’s time we ask ourselves – is milk bad for cats, or can it be as good for cats as some people claim? Let’s take a closer look at the reality behind cat milk and its place in our pet's diet. Is it an indulgent treat or a misguided myth? Let's find out.

Key takeaways

  • Lactose intolerance is common in adult cats, diminishing their ability to digest milk.

  • Cats do not require milk beyond weaning and may suffer digestive issues from dairy.

  • Some cats may tolerate a small amount of milk, indicating variability in lactose sensitivity.

  • High-quality diet and fresh water are essential for cat hydration and nutrition.

  • Specialised milk formulas can provide necessary nutrition for kittens that can't nurse.

  • Milk should be an occasional treat rather than a staple part of a cat's diet.

Why do cats crave milk?

Commonly, cats exhibiting a keen interest in lapping up a saucer of milk have captivated pet enthusiasts everywhere. But have you ever wondered why our feline friends are so drawn to this particular drink?

Conventional thinking has often led us to associate cats with milk as if the two were as harmonious as tea and biscuits.

However, a journey into the past reveals that this pairing may not be as beneficial for kitties as once thought.

Cats and milk: A historical perspective

In bygone days, when farming and agriculture formed the backbone of daily life, cats played a crucial role in managing rodent populations.

As a token of gratitude for this essential service, farmers would offer them scraps of food, including creamy by-products of dairy, such as cheese or cream.

This cultivated a relationship between cats and dairy that has endured through the ages, leading to the modern-day depiction of a cat enjoying a saucer of milk, leading to a common belief that cats love milk.

The taste of milk: Why cats love it

But what is it about milk that appears irresistible to our whiskered companions? The answer may lie in the rich, fatty composition of cream which used to float atop the unprocessed milk of old—a treat that they happened upon quite by chance.

Despite this affinity for cream, the reality is that cats do not need milk beyond the weaning phase, and their bodies are often ill-equipped to handle it later in life.

Many cats are lactose intolerant: Understanding the digestive issue

The unfortunate truth is that most adult cats cannot properly digest milk. As kittens drink milk from their mother, they possess the enzyme lactase that breaks down lactose.

Yet, as they grow, this enzymatic ability greatly diminishes, leaving many cats lactose intolerant.

Hence, despite the stereotype of cats and kittens revelling in a saucer of milk, the substance is more likely to cause gastrointestinal discomfort or even diarrhoea. Vets, therefore, frequently advise against the practice of giving cats milk.

Aspect

Feline friend

Canine companion

Lactose intolerance

Low (especially in adults)

Moderate to high

Dietary need for milk

Unnecessary post-weaning

Not required; alternative water sources preferred

Common reaction to milk

Potential upset stomach, diarrhoea

Variable, often less severe than cats


Ultimately, while the myth persists that cats love the taste of milk, and providing a cheeky saucer can feel like a special treat, it's crucial to recognise that this could lead to more harm than pleasure in our pets.

It is essential to consider safer alternatives for treats and to consult with a veterinarian before introducing dairy into your cat's diet.

It's also important to note that milk does not contain the essential nutrients cats need. It can cause a potential upset stomach, where diarrhoea may occur if you give your cat milk not specifically designed for feline consumption.

A cat drinking from a cup of milk.

Can kittens drink milk safely?

When it comes to the nourishment of the youngest felines, many cat owners wonder if kittens can drink their mother’s milk without any health risks.

The unequivocal answer is yes, mother’s milk is the best source of nutrition for newborn kittens and is needed for their growth and development.

However, when mother’s milk is not an option, owners must choose a suitable milk substitute to ensure the health and well-being of their kittens.

Kitten milk: What’s safe to give?

Kittens need specially formulated kitten milk that closely mimics the composition of their mother’s milk.

It's important not to feed your cat milk intended for human consumption, as cow's milk isn't healthy for cats due to its different protein and lactose levels, which kittens cannot properly digest.
Opt for a high-quality milk substitute that caters to the delicate dietary needs of kittens.

Lactose in a cat's diet: Is it harmful?

Lactose intolerance is a reality for many felines. While kittens can digest lactose thanks to the enzyme lactase, as they age, the level of this enzyme typically declines, which can make milk difficult to digest.

Symptoms of lactose intolerance may appear if a kitten is fed regular cow's milk, which may consequently lead to digestive upset.

Special milk for kittens: Nurturing healthy growth

Kitten milk formulas are created to provide a balanced diet that supports the healthy growth of kittens.

These special milks are enriched with the right balance of proteins, fats, and essential nutrients, ensuring they meet the specific dietary needs during the early stages of a kitten's life.

Mother's milk

Kitten milk substitute

Cow's milk

Perfect balance of nutrients for kittens

Formulated to closely resemble mother's milk

Lacks essential feline nutrients

Contains antibodies to protect health

Often contains added vitamins and minerals

High in lactose which can lead to intolerance

Easy to digest for kittens

Designed for easy digestion

Disproportional protein and fat content

Two cats sharing a bowl of milk.

Adult cats and milk consumption

As our understanding of cats enjoying a bowl of milk fades away, we're faced with the reality of feline lactose intolerance.

This change in dietary ability occurs as kittens mature into adulthood. The once nurturing substance that was mother’s milk becomes less digestible and potentially bad for cats.

Consequently, caregivers may contemplate whether to give their cat milk or seek out milk alternatives that are more suitable for feline consumption.

Cats and lactose intolerance: The adult cat dilemma

It's fundamental to understand that unlike kittens that drink their mother’s milk with ease, adult cats often lack the necessary enzymes to break down lactose effectively.

This can lead to discomfort, bloating, and gastrointestinal upsets, marking dairy as generally bad for cats.

Despite these concerns, some cat owners still wonder, "Can milk for cats be included in their diet without adverse effects?"

While individual tolerance levels vary, the consensus advises against regular dairy consumption for a feline's well-being.

Understanding your cat's dietary needs is crucial, especially when considering common food sensitivities. For insights into recognising and managing these sensitivities, read about '
Cat Food Allergies' in our article.

Milk alternatives: Safe options for hydrating your cat

Exploring milk alternatives is important for those wishing to honour their cat's preference without compromising their health.

While a specific ‘cat drink’ milk product might be tempting, it's essential to acknowledge that a cat’s hydration should primarily come from water.

Cats have evolved to receive the majority of their moisture from their prey, which implies that added liquids should closely replicate this natural intake.

Pet owners must remember that cats need plenty of clean water above all else to remain healthy and hydrated.

Choosing the right food is also essential for your cat's health. For recommendations on nutritionally balanced options, explore the
best dry cat food UK to learn more.

The need to drink water: Ensuring proper hydration

As mentioned, fulfilling a cat's hydration needs is a matter of providing an ample supply of water.

Interestingly, many felines prefer to drink running water. I’m sure you have noticed your cat perched next to your tap, chasing water as it pours.

Studies suggest that in nature, cats prefer moving water as it’s often fresher and less likely to be contaminated. A pet fountain can be an excellent investment to encourage cats to drink more and thus prevent potential kidney issues and other ailments related to dehydration.

Increased thirst can be a sign of health issues in cats. If you're noticing your cat drinking a lot of water, understand the potential reasons behind this behaviour by reading our article, “
Why Is My Cat Drinking a Lot of Water?"

A tiny kitten drinking out of a bowl

Are there any benefits to giving milk to cats?

Delving into the relationship between felines and their milk consumption stirs up an intriguing discussion about milk nutrients and whether they are good for cats.

Milk does provide vital proteins; however, can our feline friends truly benefit from it?

Milk nutrients: Good or bad for cats?

Milk may seem to offer a nutritional supplement; it contains calcium and vitamins which at first glance, look beneficial for a wide array of living beings. However, adult cats, unlike humans, often don't possess the necessary enzyme, lactase, to break down lactose found in milk.

As a result, intestinal discomfort can ensue when they consume typical dairy products. It's essential to remember that the essential nutrients cats need do not include lactose, and therefore, the need to drink milk is non-existent for their dietary satisfaction.

Special milk formulas made for cats: Exploring the options

Recognising the issue of lactose intolerance, the pet food industry has developed special milk for cats. These products are designed to mimic the mother's milk and are enriched with taurine, an indispensable amino acid absent in plant-based proteins and essential for a cat’s cardiac health, vision, and reproduction. Such formulations could be considered a more suitable milk supplement if one opts to give them milk.

Less lactose: Are some milks safer than others?

When considering different types of milk for our feline companions, the lactose content is a critical factor.

There are lactose-reduced options available that may pacify a cat's penchant for dairy without the troublesome digestive repercussions.

But even with these reduced-lactose products, moderation is the key, and they should never replace water—the staple fluid cats need to stay hydrated and healthy.

Product

Lactose content

Taurine addition

Recommended usage

Cat-specific milk

Low

Yes

Occasional treat, not a dietary requirement

Cow's milk

High

No

Not recommended for cats

Goat's milk

Varies

No

Not advisable; may cause digestive issues

Lactose-free dairy

None

Depends on the brand

Safe in moderation


In summary, while the act of giving our furry friends a small bowl of lactose-reduced milk occasionally might not be harmful, the consensus among experts is that cats eat a well-balanced diet that already includes all the essential nutrients they need.

As obligate carnivores, their requirements are readily met through high-quality, species-appropriate food accompanied by ample fresh water.

While milk may not be the best choice for your feline friend, it's essential to know what is safe. You may also wonder
if cats can eat cheese as it is also made from milk.

A cat drinking milk resting on a tree stump.

Understanding the risks of feeding milk to your cat

In the idyllic imagery of a cat contently sipping at a saucer of milk, the truth about feline intolerance to dairy often goes unnoticed.

A closer examination of cat drinks reveals that milk, particularly cow's milk, is far from an ideal choice for our feline friends due to the prevalent signs of lactose intolerance, such as abdominal discomfort and digestive upsets.

Despite this, some cat owners continue to feed milk to cats, perhaps swayed by the outdated adage 'milk is good' for every pet.

When milk is bad for cats: Recognising the signs of lactose intolerance

Observing your pet is the first step in preventing undue discomfort. If you notice symptoms like vomiting or diarrhoea after your cat consumes milk, it's a clear sign that what you're dealing with is more than just a minor tummy trouble.

Lactose intolerance in felines manifests quickly, and symptoms can range from mild to distressingly severe, disrupting not only your cat’s comfort but also its overall health. With obesity in cats on the rise, it's important to recognise that milk can upset cats, leading to weight issues and associated health problems.

Substitutes for regular milk: Making the right choice


Fortunately, the market for lactose-free milk has expanded, providing a safer alternative for those insistent on offering a milky treat to their feline companions. However, such products should not become a dietary mainstay but rather remain as occasional indulgences. Keeping the treat infrequent is essential as it prevents the displacement of more balanced and species-appropriate nourishment.

How to feed milk to cats safely: Expert recommendations

The consensus among veterinarians is clear: if you choose to feed milk to cats, it should be done with caution and restraint. When opting for lactose-free products, moderation is key. Even these alternatives, although gentler on the digestive system, should never replace mum’s milk for kittens, nor should they detract from the necessity of a nutritious, well-rounded diet as your cat matures.

In conclusion, milk remains a controversial component of feline diets, one which can carry considerable health risks if not managed carefully. Sensible indulgence might include lactose-free options, but nothing replaces fresh, clean water as the cornerstone of feline hydration and health.

Curious about what else is safe for your cat to eat? Find out
if cats can eat bananas and if cats can eat ham over on our blog, along with a comprehensive guide to these popular questions.

A black and white cat standing on a table drinking a glass of milk.

FAQs

Can cats drink milk?

While cats may enjoy the taste of milk, most adult cats are lactose intolerant, which means they have difficulty digesting lactose, the sugar found in milk. Feeding milk to lactose-intolerant cats can lead to digestive distress. Therefore, it's recommended to offer them fresh, clean water instead of milk.

Why do cats love the taste of milk?

Cats may love the taste of milk because of its high-fat content, which made it a high-value food for them, especially in historical times when they were often around farms and had access to fresh milk. However, this does not mean that milk is good for them, especially as adult cats.

Is milk harmful to kittens?

Kittens can safely drink their mother's milk which provides essential nutrients they need to grow. However, cow's milk is not recommended for kittens as it does not contain the right balance of nutrients and they may also be lactose intolerant. Instead, a specially formulated kitten milk replacement should be given to those that can't nurse from their mother.

What are the signs of lactose intolerance in cats?

The signs of lactose intolerance in cats include stomach upset, diarrhoea, vomiting, and gas. If a cat displays these symptoms after consuming milk, it's likely they are lactose intolerant and should avoid dairy products.

Are there special milk formulas made for cats?

Yes, pet stores sell special milk formulas for cats. These are typically lactose-reduced or lactose-free and are fortified with necessary nutrients like taurine. Such formulas can be given as a supplemental treat but are not required if the cat is on a balanced diet.

Is it safe to give cats lactose-free milk?

Lactose-free milk can be safer for cats than regular milk as it reduces the risk of causing digestive issues. However, it should still be given in moderation as a treat and not as a replacement for water or a regular diet.

Can cats drink alternatives like almond milk or oat milk?

While almond milk and oat milk are lactose-free, they do not provide the nutrients cats need and may contain other ingredients that are not suitable for them. Cats are obligate carnivores, and these plant-based milk alternatives are not recommended for their diet.

What is the best drink for cats?

The best drink for cats is clean, fresh water. It's essential for their hydration and overall health. Cats do not need milk to stay hydrated and are better off with water as their main source of hydration.

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