Mercury cancels brain benefits of fish oil, study confirms: Prenatal mercury exposure from a mother’s fish-rich diet can reduce the beneficial effects fish oil has on brain development, report an international group of researchers. The babies exposed in the womb to higher methyl mercury levels scored lower on skills tests as infants and toddlers than those exposed to lower levels of the pollutant. Of five nutrients tested, only the benefits of the fish oil DHA were affected by the mercury. DHA is one type of healthy oil found in fish. Careful selection of which fish to eat during pregnancy is recommended following this recent analysis.
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