The 12 Most Contaminated Fish to Avoid at the Grocery Store

 

2. Atlantic salmon (farmed)

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Most Atlantic salmon sold in stores comes from farms. Farmed salmon are often exposed to pesticides, antibiotics, and synthetic dyes to enhance their pink color. Tests have shown that farmed salmon contains higher levels of PCBs (polychlorinated biphenyls), which have been linked to cancer.

3. Swordfish

Swordfish are predatory fish, meaning they accumulate mercury from the smaller fish they eat. High levels of mercury can damage the nervous system, especially in children and pregnant women.