If you’re confused by all the news about health effects of eating fish, you're not alone. On one hand, the omega-3 fatty acids in fish are known to reduce the risk of heart disease, as the American Heart Association reminded us two weeks ago when it restated its recommendation that everybody eat at least two fish servings a week. On the other hand, fish that feed in contaminated waterways contain high levels of mercury, which can lead to cognitive problems in developing brains. That's why appeared the news about health effects of eating fish.
As If you’re confused by all the news about health effects of eating fish that weren't confusing enough, two new studies published last week in the New England Journal of Medicine investigated the possible effects of mercury on the heart, and they seem to have reached contradictory conclusions. One found no clear link between mercury levels and heart disease; the other found that men with high levels of mercury in their toenails were more likely to suffer a heart attack than those with low levels. What are we to make of this? The first thing to remember is that this is how science proceeds, by fits and starts and seemingly contradictory results that get resolved only by further study. The second is that not all fish are created equal.
Do you still feel confused about all the news of health effects of eating fish?
Compared with all the other things you might eat, fish are an excellent source of protein. They tend to eat algae as part of their natural life cycle, converting it into omega-3 fatty acids that can improve your cholesterol profile.
It was to test the effects of mercury on the heart that the two new studies compared the mercury levels in clippings from toenails, where heavy metals tend to be deposited.
For most of us, eating two servings of fish a week should not pose any problems. Guallar, who hails from coastal Spain, continues to flavor his paella with salmon, which has negligible mercury levels. Willett eats swordfish only about twice a month——because of its expense, not any fear of mercury. Fish-oil supplements are high in omega3 fatty acids and probably don't contain as much mercury as whole fish. But they don't taste nearly as good. So，What's your opinion about the news of health effects of eating fish.