Harvard Health Blog

Make smart seafood choices to minimize mercury intake

Posted April 30, 2014, 11:18 am Julie Corliss, Executive Editor, Harvard Heart Letter Fish and shellfish are great sources of lean protein, and many types are rich in heart-healthy omega-3 fatty acids. But thereís a catch: some species of fish contain worrisome amounts of methylmercury, a toxin thatís especially dangerous to developing brains. Thatís why women who are or could become pregnant and young children shouldnít eat high-mercury fish such as swordfish, shark,…

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