Are CATS Lactose Intolerant?
Just like people, cats can be lactose intolerant.
To digest lactose, a milk sugar, the human and feline digestive systems must contain the enzyme lactase. We have plenty of this enzyme in our systems at birth, and it helps us thrive on our mother’s milk.
But as we grow up, it’s normal for people and cats to begin producing less lactase. Less lactase means less ability to digest lactose. The result may eventually be lactose intolerance.
Many cats do love the taste of cow’s milk and other dairy products, which prompts their owners to give it as a treat. In cats with very little or no lactase enzymes, the body is unable to digest the milk and instead attempts to expel it from the system. The undigested lactose sugars in the intestinal tract begin to draw all sorts of bacteria. The sugar then ferments, causing adverse reactions by the stomach and gastrointestinal system. This manifests as stomach acid and painful gas in the cat.
Symptoms of Lactose Intolerance in Cats:
- Excessive gas
- Abdominal pain
- Bloating
- Vomiting
- Diarrhea
- Constipation
- Polydipsia (increased thirst)
- Dehydration
- Increased heart rate
- Dry gums
What Kind of Treats Are Safe to Give My Cat Instead of Milk?
Your cat’s dietary needs are pretty simple. She needs to drink fresh, clean water daily, and eat nutritionally-appropriate cat food that contains animal proteins (since cats are obligate carnivores—meaning their diet must contain meat).
If you are going to give your cat milk, consider it a treat, and start with a very small amount to test for reactions.
The bottom line is that most cats are lactose intolerant and although they still seem drawn to dairy products, it is not worth the risk of an unhappy digestive system. It’s best to find healthier and more enjoyable options for a special treat.
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