Fish is often praised as a healthy source of protein, rich in omega-3 fatty acids and essential nutrients. However, not all fish are created equal. Due to pollution, farming practices, and environmental changes, some fish species contain high levels of toxins that can pose serious health risks.
Before adding fish to your cart, check out this list of the 12 most contaminated fish most often found in stores. Knowing what to avoid will help you protect your health.
1. Tilapia (farmed)
Farmed tilapia often comes from overcrowded fish farms where they are fed an unnatural diet. Many farms use antibiotics and chemicals, and studies have found high levels of contaminants in farmed tilapia from some countries.
2. Atlantic salmon (farmed)
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.
4. With
Like swordfish, sharks contain dangerous levels of mercury and other toxins, such as arsenic. Regularly eating shark meat may increase the risk of heavy metal poisoning.
5. King mackerel
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