Cats can drink milk, but it is generally not recommended. While kittens drink their mother's milk and need it for early nutrition, most adult cats become lactose intolerant as they grow, losing the enzyme (lactase) needed to digest lactose, the sugar in milk. Drinking cow's milk can cause digestive upset such as diarrhea, gas, and stomach pain in many cats. Some adult cats may tolerate milk occasionally, but milk does not provide the essential nutrients cats need and can contribute to obesity if regularly given. Instead, cats should be given water for hydration and a balanced diet appropriate for their age and health. Special lactose-free milk substitutes are available if milk is desired as a treat.
Reasons Cats Drink Milk
- Cats like the taste and coldness of milk.
- It may remind them of their kittenhood nursing experience.
- Cats may prefer milk over water because of its fat and protein content.
Why Milk Is Not Ideal
- After weaning (4 to 10 weeks), cats produce less lactase.
- Most adult cats are lactose intolerant.
- Pasteurized cow's milk proteins can cause gut irritation.
- Milk can lead to nutritional imbalance and obesity.
Summary
- Kittens should only have mother's milk or kitten milk replacers.
- Adult cats do not require milk and are better off with fresh water and specially formulated cat food.
- Occasional lactose-free milk treats may be safe for some cats.
Overall, milk is more a treat than a necessary or beneficial drink for cats and should be given cautiously or avoided.
