From Fiona Haynes,
Your Guide to Low Fat Cooking.
The Benefits of Eating Fish
On the one hand, fish is a low-fat, high-protein food that fits perfectly into a
healthy diet—and should be enjoyed at least twice a week. Even fatty fish,
such as salmon, contain heart-healthy omega-3 fatty acids, which, among
other things, help boost artery-clearing HDL cholesterol and reduce inflammation.
Yet we are also told that eating fish can expose us to dangerous contaminants
such as mercury, and chemicals such as PCBs. So is fish good or bad for us?
A new report by the Institute of Medicine, which advises the government on
health policy, tries to help sort through the confusion. It concludes that eating
fish twice a week is indeed good for us—that the potential cardiovascular benefits
outweigh the risks of exposure to contaminants, and that government agencies
should do a better job of promoting this message.
But despite this endorsement, researchers at the institute are unclear how eating
fish fights heart disease. It may be the omega-3 fatty acids, or simply eating lean
fish in place of high-fat, high-cholesterol meats. Yet they are convinced that
fish-based omega-3s offer neurological benefits to babies, and help mothers carry
their babies to term.
As a result, the institute states that pregnant women can consume up to 12 ounces
of fish a week (including up to six ounces of albacore tuna), and should avoid fish
such as shark, tilefish, king mackerel and swordfish. Surprisingly, these general
guidelines also apply to children under 12. For everyone else, including those at risk
of heart disease, the institute advises that if we eat more than two servings of seafood
a week, we should eat a variety of fish to reduce our risk of exposure to contaminants.
The Institute of Medicine’s report doesn’t provide a list of good and bad fish. Its purpose
was simply to assess the risks and benefits of eating fish so government agencies can
present a clearer message to consumers. In the meantime, we’ll still debate whether it’s
ok to eat farmed salmon, and, in our house, whether fish sticks count as a serving of fish!
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