KEY POINTS 
Fish is considered to be heart healthy.

An appropriate selection of fish allows for health benefits without increasing mercury toxicity. BACKGROUND
1 
Fish contain high amounts of cardioprotective omega-3 fatty acids. Ingestion of fish (eg, 1 to 2 servings per week) reduces the risk of coronary death by 36%.

The mercury content of predatory fish is higher because they eat other fish containing mercury and indirectly attain higher levels than the fish at the lower end of the food chain.

The beneficial effect of fish intake can…