“Fish is a healthy source of protein and should be a regular part of the diet.”
This statement is true.
Despite its benefits, seafood can be dangerous to your health when contaminated with industrial chemicals, pesticides, and heavy metals—most notably mercury and PCBs—which has too often been shown to be the case in recent studies.
To see current recommendations for safe, sustainable seafood go to : http://www.seafoodwatch.org/cr/cr_seafoodwatch/download.aspx