Eating Fish Linked to Longer Life
April 25, 2012 -
Whole Foods, the Texas-based natural foods supermarket, no longer carries fish considered to be unsustainable. The Whole Foods ban includes fish that is either overfished or caught in a harmful way, according to their website. The popular Atlantic Halibut made the list, though the company will still sell Atlantic cod that is caught by hook and line or gillnets. "Stewardship of the ocean is so important to our customers and to us," David Pilat, the global seafood buyer for Whole Foods told the New York Times. "We're not necessarily here to tell fishermen how to fish, but on a species like Atlantic cod, we are out there actively saying, 'For Whole Foods Market to buy your cod, the rating has to be favorable.'" Here's a look at the list of fish that the superstore no longer sells and why.
Octopus Whole Foods uses ratings set by the Blue Ocean Institute, a conservation group, and the Monterey Bay Aquarium in California. The ratings are based on factors including how abundant a species is, how quickly it reproduces and whether the catch method damages its habitat.
Imported Wild Shrimp "At Whole Foods Market, we've been saying that our mission is to sell only wild-caught fish that has been responsibly caught. For a few years now, we've used color-coded sustainability ratings, from green (best choice) to red (avoid), to help you make an informed choice. Now we're putting our mackerel where our mouth is: To support greater abundance in our oceans, we're no longer carrying red-rated wild-caught seafood!" the company wrote on its blog.
Tuna (from specific areas and catch methods rated "red") On their website, Whole Foods says that they stopped selling "species that were extremely depleted in the oceans, such as orange roughy, shark and bluefin tuna" years ago. The company uses the sustainability ratings of the Marine Stewardship Council (MSC).
Rockfish According to the Monterey Bay Aquarium, "In recent years, reduced fishing has allowed many rockfish populations to recover from low levels. Gear concerns remain, however -- trawl-caught rockfish should still be avoided."
Swordfish Some of the gear used to fish swordfish "accidentally catches sea turtles, seabirds and sharks," according to the Monterey Bay Aquarium.
Skate Wing Skates are in the overfished category. Most are also caught with bottom trawls, which result in high levels of accidental catch.
Sturgeon According to Monterey Bay Aquarium, "Sturgeon farmed in the U.S. is a good alternative to most wild sturgeon, whose populations have seriously declined due to overfishing for sturgeon eggs (caviar)."
Tautog Also known as black fish, Tautog are considered a "vulnerable" species. They are found close to shore on hard-bottom habitats, occasionally entering brackish water.
Trawl-Caught Atlantic Cod Fishermen often catch cod with bottom trawl, large nets that skim across the seafloor. Trawling, according to the Monterey Bay Aquarium, "damages marine habitats and produces bycatch."
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Turbot A cousin of Pacific halibut, turbot are a right-eyed flatfish -- as they develop, their left eye migrates across the top of the skull toward the other eye on the right side. Turbot are yellowish or grayish-brown on top and paler on their underside.
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People age 65 and older who eat fish may live an average of two years longer than people who do not consume the omega-3 fatty acids found mainly in seafood, a US study suggested on Monday.
People with higher levels of omega-3 fatty acids also had an overall risk of dying that was 27 percent lower, and a risk of dying from heart disease that was 35 percent lower than counterparts who had lower blood levels, said the study.
The research was led by scientists at the Harvard School of Public Health and was published in the Annals of Internal Medicine.
While other studies have demonstrated a link between omega-3 fatty acids and lower risk of heart disease, this research examined records of older people to determine any link between fish-eating and death risk.
Researchers scanned 16 years of data on about 2,700 US adults aged 65 or older. Those considered for the study were not taking fish oil supplements, to eliminate any confusion over the use of supplements or dietary differences.
Those with the highest blood levels of omega-3 fatty acids found mainly in fish like salmon, tuna, halibut, sardines, herring and mackerel, had the lowest risk of dying from any cause, and lived an average of 2.2 years longer than those with low levels.
Researchers identified docosahexaenoic acid (DHA) as most strongly related to lower risk of coronary heart disease death.
Eicosapentaenoic acid (EPA) was strongly linked to lower risk of nonfatal heart attack, and docosapentaenoic acid (DPA) was most strongly associated with lower risk of dying from a stroke.
The findings persisted after researchers adjusted for demographic, lifestyle and diet factors.
"Our findings support the importance of adequate blood omega-3 levels for cardiovascular health, and suggest that later in life these benefits could actually extend the years of remaining life," said lead author Dariush Mozaffarian, associate professor in the Department of Epidemiology at Harvard School of Public Health.
"The biggest bang-for-your-buck is for going from no intake to modest intake, or about two servings of fatty fish per week," said Mozaffarian.