Short answer: Yes, lactose-free milk is generally safer for cats than regular dairy, but it should be offered only as an occasional treat and not as a dietary staple or daily hydration. Details

• Why lactose-free milk is better: Many adult cats are lactose intolerant and can develop symptoms like diarrhea, gas, vomiting, or stomach upset from ordinary milk. Lactose-free formulations remove the lactose sugar, reducing the risk of digestive upset.

• When to offer it: If you choose to give lactose-free milk, do so sparingly and as a small treat. Water should remain the primary source of hydration for cats.

• What to look for: Use commercially prepared lactose-free milk intended for cats or pets (not regular cow’s milk). Some lactase-treated milks for humans exist, but cat-specific or vet-approved lactose-free products are preferable.

• Alternatives: Cat-safe milks formulated for felines or small amounts of goat milk (which has less lactose) can be options, but monitor for any adverse reaction. Still, these should only supplement, not replace water or a balanced diet.

Practical tips

• Start with a tiny amount (a few teaspoons) and watch for any digestive reaction over 24–48 hours.
• Do not rely on milk to meet nutritional needs; it offers minimal nutritional value for cats.
• If your cat has a history of dairy intolerance or gastrointestinal issues, avoid milk altogether and consult a veterinarian for safe treats and hydration strategies.

If you’d like, I can tailor guidance to your cat’s age, weight, and health status and suggest specific lactose-free products that are vetted for feline use.