Archive · 13 Jun 2025
Why Milk Is Generally Bad For Cats: A Nutritional Overview
Cats and milk seem like a classic pairing, but most cats can't digest it well.
After kittenhood, cats lose the ability to break down lactose, a sugar in milk.
Drinking milk can cause tummy troubles like gas and diarrhea.
Though cats might like the taste, milk isn't good for them.
Lactose-free milk is a better option, but it still isn't very helpful.
Vets and cat owners agree: milk isn't necessary or healthy for cats.
Cats are largely lactose intolerant and shouldn't drink milk.
Milk became associated with cats through historical feeding practices and media portrayals.
Lactose in milk ferments in cats' colons, causing gas, bloating, and diarrhea.
Milk contains palatable proteins and fats, and casein with calming effects.
Lactose-free milk can be used as an occasional treat, but is not nutritionally beneficial.
- Who
- Most cats are lactose intolerant.
- What
- Milk is generally not recommended for cats.
- When
- Historically, before commercial pet food, cats were fed milk.
- Where
- N/A
- Why
- Cats lack the enzyme to properly digest lactose after kittenhood.
Milk as Food
Milk and Health
Suitability
Milk as Food
Historical feeding practices and cultural depictions suggest milk as a suitable cat food.
Milk and Health
Veterinarians recommend avoiding milk due to lactose intolerance concerns.
- Lactose Intolerance
- Common in cats
- Symptoms
- Gas, bloating, diarrhea, abdominal pain
- Milk Alternatives
- Lactose-free milk (occasional treat)
- Cat Diet Need
- High in protein and fat