[Vision2020] Fw: Why doesn’t fish oil prevent heart attacks anymore?

lfalen lfalen at turbonet.com
Sat Jun 18 18:07:22 PDT 2016

-----Original Message-----
Subject:  Why doesn’t fish oil prevent heart attacks anymore?
From: "Nutrition Action" <nutritionaction at nutritionaction.com>
Date: 06/17/16 13:33:02

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 Friday, June 17, 2016
Nutrition Action Daily Tip
Maybe it depends on the drugs you're taking.Author: David Schardt  in: Heart and Disease
"Fish Oil Claims Not Supported by Research," read the headline in the New York Times. "Flimsy evidence that fish oil helps the heart," the Sarasota Herald-Tribune wrote.
Are you taking fish oil pills because you thought this would prevent fatal heart attacks? What gives?

 "People who eat a diet that's high in fish have a lower risk of heart attacks and strokes in many observational studies," says JoAnn Manson, chief of preventive medicine at Brigham and Women's Hospi­tal in Boston.
But those studies, which observe a lower risk in fish eaters, can't prove cause and effect. "Fish may replace foods-like red meat-that increase risk," notes Manson. "Or fish eaters may have other behaviors that lower their risk."
To prove cause and effect, researchers need a trial that randomly assigns people to take either a placebo or fish oil pills. Pills are used since it's tough to find a placebo for salmon or tuna, and there's evidence that it's the ome­ga-3 fats in fish oil that protect the heart.
These kinds of randomized, controlled trials of fish oil conducted 10 to 15 years ago in Italy and Japan did seem to show that fish oil protects the heart.
It worked here.  
For example, an Italian trial called the GISSI Prevention study tested fish oil on roughly 11,000 men and women who had already suffered a heart attack. They were randomly assigned to take the omega-3s EPA and DHA (850 milligrams total) or vitamin E (300 mg) or both every day or no pills at all. (There was no placebo, and the participants knew which pills they were taking, but researchers still consider the results important.)
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What's more, salt may damage the heart, kidneys, and other organs above and beyond its effect on blood pressure. "Salt is costing us too many lives and too many dollars," says physician Stephen Havas.
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NutritionAction.com's Sweet Nothings: Safe … Or Scary? The Inside Scoop on Sugar Substitutes will tell you what's safe, unsafe, or inadequately tested.
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Should You Avoid Frozen Fish If You Want Good-Quality, Nutritious Seafood?
Times have changed, says seafood expert.
 You don't need to avoid frozen fish if you want good quality and nutritional value, says Barton Seaver, the director of the Healthy and Sustainable Food Program at the Center for Health and the Global Environment at the Harvard T.H. Chan School of Public Health in Boston.
"The technology of freezing fish has evolved to the point where it's comparable to, if not better than, fresh fish," Seaver explains.
More than 85 percent of the seafood we eat in the United States is imported and the vast majority is frozen at some point, according to the National Fisheries Institute. Freezing preserves the nutritional value of the seafood.
"Historically, seafood was frozen as a last-ditch effort to keep it from spoiling. If fish wasn't sold by Friday, it was frozen so it could be sold when demand was up. So it was a crappy piece of fish to begin with. But these days, fish is pulled from the water, filleted, and frozen within hours. That sounds pretty good to me."
Stores that sell previously frozen fish, however, may be shortchanging the consumer of...
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