Cat drinks milk

Rumble/cat-“[When a cat drinks milk] undigested lactose will stay in their intestines rather than passing into the bloodstream, and end up fermenting,” says Dr. Richter. “Whole, 2 percent, and skim cow’s milk can also add unhealthy amounts of fat to your cat’s diet.” Since cats don’t have the enzyme necessary for digesting lactose, drinking milk can lead to gastrointestinal issues such as an upset stomach, diarrhea, vomiting, loss of appetite and weight, abdominal pain and discomfort, and cause behavior changes such as increased scratching.

Again, just like humans, some cats don’t have a problem digesting milk. Regardless, most veterinarians suggest other alternatives since cow’s milk has no nutritional benefits for cats.