While fish is widely praised for its protein, vitamins, and heart-healthy omega-3s, larger predatory species can accumulate trace amounts of environmental pollutants like mercury as contaminants move up the aquatic food chain. Even though these levels in both wild and farmed fish typically fall well within official safety
standards, experts emphasize that eating a wide variety of fish in moderation—rather than depending on a single type—safely maximizes the nutritional benefits while minimizing any potential contaminant buildup.
