Dogs can eat canned tuna and cats. Cats’ canned food is made of pure meat. Dogs like to eat it very much. Owners can feed leftover canned tuna to their dogs, but do not feed it in large amounts for a long time, because cats’ canned food There is a lot of fat and salt added to the food, which will cause tear stains and lead to obesity if the dog eats for a long time. If you want your dog to eat better, you can avoid feeding meat.