Why do people think milk is good for cats? Answer: because cats like milk because (a) the fat content attracts them and (b) it is comforting – a reminder of kittenhood.
But cats don’t realise that “milk” for humans is cows milk. Cows milk is made by a cow for calves and not for humans or cats.
For this reason some cats and people are lactose intolerant. We don’t make enough of the enzyme lactase to break down the sugar content of milk called “lactose”.
The result of drinking “milk” if a person is lactose intolerant can be sinus problems and gas, diarrhea and bloating. People with sinus problems should try lactose free milk.
Cats get diarrhea if they drink to much cows milk, which is why you have to buy special and highly expensive (over priced) cat’s milk. As for people, you can buy lactose free milk. I wonder if cats can feed lactose free milk? Probably can.
I think all people should buy lactose free milk. I am sure the majority of people still believe that cats like milk, which is unfortunate.
There is a phrase, “the cat that got the milk”. It is still a well used phrase. Sometimes an alternate phrase is used: “the cat that got the cream”. It means a person is pleased with himself having done something successfully, reflecting the fact that a cat is pleased after he drank his milk (until he has diarrhea!).
The phrase perpetuates the misconception that cats like milk and that cat owners should give their cats milk. Wrong, I am afraid. A bit of milk is probably alright but that should be it. Diarrhea in young cats is dangerous as it causes dehydration, which can be fatal.
A lot of people search online for a treatment for cat diarrhea. Well, it may be wise ask if the cat is being fed cows milk.