Navigation Links
Popular Tilapia Might Not Help Heart
Date:7/11/2008

Study finds farm-raised fish has high levels of unhealthy omega-6 fatty acids

FRIDAY, July 11 (HealthDay News) -- The wildly popular farm-raised fish known as tilapia may actually harm your heart, thanks to low levels of healthy omega-3 fatty acids and high levels of unhealthy omega-6 fatty acids.

New research suggests the combination could be particularly bad for patients with heart disease, arthritis, asthma and other diseases involving overactive inflammatory responses.

"If you're in a vulnerable population such as a heart disease patient, you need to be very careful with what you're eating, and that includes everything," said senior study author Dr. Floyd H. Chilton, director of Wake Forest Center for Botanical Lipids, in Winston-Salem, N.C. "But when it comes to fish, there's not a more important thing you can do for heart disease than eat the right type of fish or take dietary fish oil. There is evidence that you may harm yourself by eating the wrong kind of fish, and [farmed] tilapia and catfish are the two that fall into that category."

"I don't think that this is an issue for everyone, any more than eating a hamburger is an issue for everyone," Chilton added.

The study was published in the July issue of the Journal of the American Dietetic Association.

As for suppliers, "the industry needs to improve ways of farming fish," said Katherine Tallmadge, a national spokeswoman for the American Dietetic Association. "The whole idea of farming is a great one, but they're feeding the fish food that's inexpensive, so they can keep the price down, and it's having an adverse effect on the nutritional quality of the fish."

Several health groups, including the American Heart Association, recommend eating two servings of fish a week, preferably fatty fish such as salmon. The reason: primarily to increase omega-3 fatty acids.

But no one has really looked at the nutritional effect of an explosion in farmed fish (increasing at an annual rate of 9.2 percent, compared with 1.4 percent for wild fish). In particular, inexpensive tilapia is exploding in popularity.

This study used gas chromatography to analyze the fatty acid composition of 30 widely consumed farmed and wild fish.

Farmed trout and Atlantic salmon had relatively good concentrations of "good" omega-3 fatty acids compared with "bad" omega-6 fatty acids.

Farm-raised tilapia and catfish, on the other hand, had troubling ratios.

Tallmadge recommends looking for wild fish. Wild salmon, even canned wild salmon, has high levels of omega-3s and is an excellent source of protein. "It can be fairly economical," she said. "I buy frozen salmon at Trader Joe's for about $7 a pound, that's $2 a serving."

Concentrate on cold-water fish such as salmon, rainbow trout, sardines, tuna and anchovies, all of which have healthy fats, added Marianne Grant, a health educator with Texas A&M Health Science Centers Coastal Bend Health Education Center, in Corpus Christi.

"In the 1970s, we lost the ability to feed the planet with fish we catch," Chilton said. "Farm-raised fish has to be part of our future, but we must do it correctly. We must feed animals the correct foods. Animals become what we feed them, and we become what we eat as well. The food chain is fairly consistent."

More information

Visit the American Heart Association for more on fish and fatty acids.



SOURCES: Floyd H. Chilton, Ph.D., professor, physiology and pharmacology, and director, Wake Forest Center for Botanical Lipids, Winston-Salem, N.C.; Katherine Tallmadge, R.D., national spokeswoman, American Dietetic Association, Washington, D.C.; Marianne Grant, R.D., L.D., health educator, Texas A&M Health Science Center Coastal Bend Health Education Center, Corpus Christi; July 2008, Journal of the American Dietetic Association


'/>"/>
Copyright©2008 ScoutNews,LLC.
All rights reserved

Related medicine news :

1. Move Over, Popular Beauty Fillers--Here Comes Evolence
2. Wake Forest researchers say popular fish contains potentially dangerous fatty acid combination
3. Popular Antidepressants Linked to GI Bleeding
4. Leading Eating Disorder Treatment Center Identifies Popular Diet Myths
5. Maryland Dermatologists Set New Records in Sun Safety Outreach at Popular LPGA Tournament
6. Plaintiffs Lawyer Orders Lead Testing on 3 Popular Herbalife Products; Results Show 728% More Lead Than Allowed by Law Under Proposition 65 Violation
7. National Pharmaceutical Company to Sponsor Popular Kansas City Walk
8. National Pharmaceutical Company to Sponsor Popular Indianapolis Walk
9. Study Supports Popular HIV Drug Regimen
10. HSA Banks Group Online Enrollment Option Jumps in Popularity
11. Former Bristol-Myers Squibb Senior Vice President Indicted for Lying to the Federal Government About Popular Blood-Thinning Drug
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:5/5/2016)... ... , ... TLC Laser Eye Centers announced today that it has acquired Gordon ... be called “Gordon Schanzlin New Vision Institute, a TLC Laser Eye Center.” , ... ensure that patients continue to receive the highest quality of care. In addition, all ...
(Date:5/5/2016)... ... May 05, 2016 , ... This weekend, from Friday, May 6 - Sunday, May ... California terrain at the first Team Semper Fi Mountain Bike Camp, hosted in conjunction with ... mountain bike legends Mark Weir and Jason Moeschler, who’ll share pro tips with the injured ...
(Date:5/5/2016)... FRANCISCO (PRWEB) , ... May 05, 2016 , ... ... the Unites States to promise successful results with IVF and with egg freezing, ... to deliver the most patient-centric and highest quality fertility care, Spring Fertility offers ...
(Date:5/5/2016)... ... May 05, 2016 , ... ... use ultraviolet light A (UV-A) for photosynthesis, researchers Juntian Xu and Kunshan Gao ... brown seaweeds. The pair observed that when photosynthetically active radiation (i.e. the white ...
(Date:5/5/2016)... , ... May 05, 2016 ... ... hands-on exercises, the Wharton Seminars for Business Journalists , led by ... of key business and economic issues.  This one-day program at the Wharton ...
Breaking Medicine News(10 mins):
(Date:5/5/2016)... , May 5, 2016 Progra m ... trial of Oxitec , s mosquito ... Aedes aegypti by 96 %   ... a new plan to fight wild Aedes aegypti, the dangerous mosquito ... on the island of Grand Cayman .  MRCU, a global ...
(Date:5/5/2016)... , May 5, 2016  Diagnostic imaging ... decade due to concerns that these tests cause health ... approach to imaging, as well as the adoption ... era of medical peripherals that help health care providers cut ... Ampronix  advanced medical imaging is a renowned authorized reseller ...
(Date:5/5/2016)... , May 5, 2016 Research ... for PET Imaging in the USA"  report to their ... provides information on the current Positron Emission Tomography (PET) ... USA market. Along with the current known ... USA , the report also contains a ...
Breaking Medicine Technology: