The 12 Most Contaminated Fish to Avoid in the Supermarket

Fish is often touted as a healthy source of protein, rich in omega-3 fatty acids and essential nutrients. But not all fish species are created equal. Due to pollution, farming methods, and environmental changes, some fish species contain high levels of toxins that can pose serious health risks.

Before you add fish to your cart, take a look at this list of the 12 most heavily contaminated types of fish that are commonly available in stores. Knowing what to avoid can help you protect your health.

1. Tilapia (farming)
Farmed tilapia often come from overcrowded fish farms, where they are fed unnatural food. Many farms use antibiotics and chemicals, and studies have found high levels of pollutants in farmed tilapia from certain countries.

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