You Might Want To Avoid These Types Of Tuna At Restaurants - Chowhound

Metamore Studio/Shutterstock Tuna is a generally healthy fish, being lean and filled with omega-3 fatty acids, which are great for heart health. However, it's largely common knowledge at this point that all fish have at least some traces of mercury. Plenty of species also suffer from overfishing, as well. When it comes to both sustainable fishing and the amount of mercury you're possibly about to eat, species…