No, the consumption of tuna may lead to other health issues. This is due to higher levels of mercury in fresh tuna. Other types of fish such as salmon, flounder, herring or haddock are a healthier and safer option. Too much mercury in the diet would lead to mercury poisoning. This would bear severe consequences, even proving fatal.
Do not be alarmed if your dog has consumed a small amount of tuna. It would not be enough to cause mercury poisoning.
Take precautions to keep tuna out of reach to your dog. If you have a cat at home, it is best to monitor if your dog has been eating the wet cat food as it often contains tuna.
So anytime someone asks you if Can Dogs Eat Tuna, you can tell them for sure that it does not make a good dog food. Give your dog the best, safe option.