No, Mercury isn't just that silver stuff in old-timey thermometers. Mercury is a naturally occuring element in the environment and can sometimes be found in your food — most notoriously in fish.

The FDA and EPA say most women and young children should avoid the first four highest-­mercury fish below. They're considering adding the last two to the list. If you are a frequent consumer of ...

And humans are then exposed to the element when they eat the fish, one of the most widely consumed around the world. Getty Images Concentrations of mercury in the fish had failed to declined as ...

Some types of fish have high levels of mercury, which can be dangerous in high quantities. But herring has a low mercury content, when compared to some other fish. Still, it’s important to ...

and tilefish because samples of these fish had shown dangerously high levels of mercury contamination. But instead of thanking the FDA for the kind advice, environmental activists and consumer ...

Seafood is heart-healthy, low in fat, and high in protein ... which can easily be met with a couple of servings of fish each week. Mercury is present in seawater in small quantities.