The 12 Most Contaminated Fish to Avoid at the Grocery Store

Seafood is often celebrated as a healthy source of protein, omega-3 fatty acids, and other nutrients. But not all fish are created equal—some can contain high levels of contaminants, including mercury, PCBs (polychlorinated biphenyls), and other environmental toxins. Eating these fish frequently can pose health risks, especially for pregnant women, children, and anyone with compromised health.

Here’s a list of the 12 most contaminated fish you may find at grocery stores—and what to choose instead.