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Why Cats Should Never Drink Milk, According to New Research

Confirmed

Entertainment Desk

In Short: Cats should avoid milk after weaning, as their bodies stop producing the enzyme needed to digest it, debunking a long-standing myth.

Hot Kid Drink Milk 20150528
Photo: WhisperToMe / Wikimedia Commons (CC0)

While cats and milk have long been associated, research now reveals that cats should not drink milk after weaning, as their bodies stop producing the necessary enzyme to digest it.

Like all mammals, cats start life drinking milk from their mother. However, around 6–12 weeks after weaning, they stop producing the enzyme lactase, which is required to digest lactose in milk.

This natural process, which begins in kittenhood, means that milk is no longer a necessary part of a cat's diet after this stage.

Historically, this arrangement led to the association between cats and milk, which has been further cemented through cultural depictions in art, books, movies, and cartoons.

Despite this, past kittenhood, milk is completely unnecessary for cats, and feeding it to them can lead to digestive issues such as diarrhea and vomiting.

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