Yes, they can occassionally drink goat milk as long as their tummies can handle it.
Compared to cow milk, goat milk is a safer alternative for cat parents looking for milk options to give their pets. Nevertheless, it should be given with your veterinarian’s guidance and consent. This is because most adult cats cannot process the lactose found in goat milk. Even young kittens that produce lactase in their stomachs will not be able to handle the high amount of lactose found in goat milk. In addition, goat milk does not have the right levels of protein and fat needed by cats to thrive.
However, cats that can handle drinking goat milk can gain nutrients such as calcium, phosphorus, vitamins A and B5, biotin, and potassium. These can help sustain their various systems from their skeletal and integumentary systems to their nervous and immune systems.
What to do if your cat drinks goat milk: Observe any changes in your cat in the next 24 hours. An adult cat who drinks goat milk may experience upset stomach. Symptoms may include vomiting, bloating, loose stools or diarrhea, and intestinal cramps. If her symptoms worsen, take her to the veterinarian immediately.
In summary: Goat milk should not be given to full-grown cats that are allergic to milk or do not have the capacity to digest it. Kittens can be fed goat milk in dire circumstances, but never as a permanent meal plan. (Instead of goat or cow milk, give her kitten glop.) Before offering goat milk to your cat, consult with your vet. If you feed your cat goat milk for prolonged periods and beyond the recommended amount (5 to 10% of her daily caloric intake), it may cause her to gain weight and become obese.