Is Milk Bad or Good for Cats?

Is milk bad for cats?

Q: I've heard it's bad to give cats milk to drink. Is this true?

A: Adult cats do not require milk as a part of their diet. Young kittens require their mothers' milk only while they are still nursing. This milk contains nutrients and antibodies that help kittens grow and stay healthy.

Once cats mature, many become lactose intolerant. This makes cow's milk a poor choice to use as a treat for your cat. Milk can cause your pet to have stomach ailments and indigestion since they are not used to it. In some cases milk can actually make your cat very ill and cause vomiting and/or diarrhea.

If you really want to give your cat milk, most pet stores carry lactose free milk made especially for cats. This can provide a good substitute to cows' milk and can be a good treat.

Author's profile photo
Dr. Lauren Brickman Dr. Brickman started as a veterinary technician at Garden City Park in 1997 and went on to…

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Comments (5)

Anonymous (Unverified)

No, that's not her claim. Her claim is that many cats gradually become lactose intolerant, just as humans do. And as for 'liberal BS,' part of what you call 'liberal BS' is observing that it's probably not a good idea for anyone (human or animal) to drink cow's milk laced with industry-favored toxins. And regarding your statment that "humans are told that we need to drink milk daily"--that's a bunch of industry BS; it's that very industry which wants to persuade us to consume their toxic product. So it sounds like you're actually a 'liberal' here.

Anonymous (Unverified)

I buy and consume raw, unpasteurized cow's milk, and have for years. I haven't gotten sick, "become lactose intolerant" and think the milk you get at the store taste's terrible. The cow's used for raw milk consumption are free range, pasture fed, bull bred and all natural. No hormones, antibiotics or steroids. Calves are allowed to nurse from their mothers. All of these things equal happy cows, hence no natural stress hormones either. It is all natural, and I feed it to our cat once in a while as well. He loves it, and I have yet to notice any of the adverse symptoms/reactions in him. As you said, all things in moderation, and raw and natural are always better than processed and unnatural. My 2 cents for free.