LONDON - Women who eat seafood while pregnant may be boosting their children’s IQ in the process, according to new research published Friday in The Lancet.

The results of the study were surprising, say the authors, and contradict American and British recommendations that pregnant women should limit seafood and fish consumption to avoid potentially high levels of mercury. The study relied on mothers’ observations of their children’s development and their reports of their food intake while pregnant.

Mercury is found in small concentrations in fish and seafood, but can accumulate in the body. High amounts of the metal can damage the human nervous system, particularly those in developing fetuses. On the other hand, seafood — including fish — is also a major source of omega-3 fatty acids, essential to brain development.

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Omega 3 fatty acids also help to reduce risk of heart disease and contribute to healthy skin,hair and minimize symptoms of arthitis and inflammatory diseases