Yes, but only the plain stuff in water.

Canned tuna is safe for both cats and dogs in small amounts, but you need to be picky about which can you open. The big risks are sodium and additives like oils or spices.

Most tuna packed for humans is loaded with salt. Too much sodium can cause dehydration or worse in pets—especially cats, who are more sensitive. Stick to tuna packed in water (not oil or broth) with no added salt. Rinsing it helps cut sodium further.

Watch for seasonings like garlic or onion powder, both toxic to pets. Also avoid tuna packed in sunflower or vegetable oil—too much fat can upset their stomach or lead to pancreatitis in dogs.

A spoonful as an occasional treat is fine. Just don’t make it a daily habit.