The foods we eat influence our health. Besides containing protein and other nutrients such as vitamin D and selenium, fish (either finfish or shellfish) contain a specific type of fat, omega-3 fatty acids, that may reduce the risk of developing heart disease and other medical problems.

However, fish may also contain mercury and other contaminants that may have risks for health. The October 18, 2006, issue of JAMA includes an article about the health benefits and risks of eating fish.

Overall, the health benefits of eating fish greatly outweigh the potential risks—especially when guidelines are used to reduce the small chance of being affected by these risks.

PMID: 17047221

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