It's tough to get away from mercury in a fish-heavy diet. As the decades have passed, mercury from power plants and factories has had plenty of time to spread through the oceans and seep into the ...

A pair of chopsticks lifts a piece of nigiri off a platter containing various types of sushi - Sean Gallup/Getty Images Tuna is a star player on sushi menus. Not only can you find it in popular rolls ...

New research which linked DNA and mercury contents shows that levels of the metal are elevated in certain species of tuna. They were higher in blue fin , sushi from lean dark red tuna, and big eye ...

Tuna and salmon are two of the most popular types of sushi. When it comes to nutritional value, tuna often packs the greatest ...