title: 2 studies agree on fish benefits but differ on contaminants.
mesh_terms: D000818:Animals; D005399:Fishes / Q000378:metabolism; D006331:Heart Diseases / Q000517:prevention & control*; D006801:Humans; D014874:Water Pollutants, Chemical / Q000633:toxicity*
chemical_list: D014874:Water Pollutants, Chemical