New York: It may be a red herring to worry over whether people who eat lots of fish may lose whatever heart benefits they might have gained because of an increased exposure to mercury, a new study shows.Rich in omega-3 fatty acids, fish is thought to rank high on the list of heart-healthy foods. But it has a potential dark side: many fish species that wind up on the plate have high levels of mercury, a known neurotoxin.
The FDA, for example, advises women who are pregnant or who might become pregnant to avoid eating shark, swordfish, king mackerel or tilefish because of their high mercury content. The agency says these women can safely eat one meal a week of albacore tuna, which has more mercury than other types of tuna.The study did raise one potential red flag: people whose red blood cells had elevated traces of selenium appeared to be at increased risk of sudden cardiac death. The number of such cases was small, however, so the researchers called for more investigation into the possible link.Bureau Report
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