Navigation Links
Eat Fish, Live Longer?
Date:4/2/2013

By Kathleen Doheny
HealthDay Reporter

MONDAY, April 1 (HealthDay News) -- Regularly eating fish rich in omega-3 fatty acids might lengthen your life, new research suggests.

A study of more than 2,600 older adults found those with the highest blood levels of omega-3 fatty acids -- found in salmon, mackerel, herring, lake trout and albacore tuna -- lived more than two years longer on average than those with lower blood levels.

"This is not a study of fish oil supplements, it's a study of blood omega-3 levels related to diet," said researcher Dr. Dariush Mozaffarian, an associate professor of epidemiology at the Harvard School of Public Health in Boston.

The study, published April 1 in the journal Annals of Internal Medicine, doesn't prove that eating fish will increase longevity, but it does suggest a connection.

"Blood levels of omega-3s are related to lower risk of death, especially cardiovascular death," Mozaffarian said.

Mozaffarian found that people with the highest levels of omega-3s reduced their overall risk of death from any cause by up to 27 percent compared to those with the lowest levels. And they had about a 35 percent lower risk of dying from heart disease.

Fish contains heart-healthy protein and fatty acids, and other studies have found diets rich in fish lower the risk of heart disease death. But the effect on death from other causes has not been clear, Mozaffarian said.

Rather than relying on self-reported intake as some other researchers have, Mozaffarian's team measured actual blood levels of the fatty acids.

At the study's start, the researchers analyzed blood samples, did physical exams and asked about lifestyle. None of the participants, who were 74 years old on average, took omega-3 supplements at the time.

During the 16-year follow up, 1,625 people died, including 570 from cardiovascular causes. The higher the omega-3 blood levels, the lower their risk of death during the follow-up, the study found.

Alice Lichtenstein, director and senior scientist at the Cardiovascular Nutrition Laboratory at Tufts University in Boston, emphasized that although the research noted an association, it did not establish a cause-and-effect relationship.

"The results of this study support a relationship between higher fish intake and lower risk of total mortality, particularly death from coronary heart disease," said Lichtenstein, who was not involved in the study.

The researchers, however, cannot determine whether the omega-3 levels were directly responsible for the reduced risk of death or simply a marker for a healthier lifestyle, she cautioned.

For instance, those who had the highest levels of omega-3 also ate more vegetables and fruit than those in the lower level groups, Lichtenstein said, which suggests that simply taking a fish oil supplement may not produce the same effects.

The American Heart Association recommends eating two 3.5-ounce servings of fatty fish, such as salmon, each week.

If you're currently not a fish eater, don't despair. "Going from zero to some intake seems to be where you get most of the benefit for your blood levels," Mozaffarian said.

The study was funded primarily by the U.S. National Institutes of Health. Mozaffarian reported funding from Sigma Tau Pharmaceuticals, Pronova BioPharma (now BASF) and GlaxoSmithKline for studies he initiated on omega-3s.

More information

To learn more about omega-3s in your diet, visit the American Heart Association.

SOURCES: Dariush Mozaffarian, M.D., M.P.H., associate professor, epidemiology, Harvard School of Public Health, Boston; Alice Lichtenstein, D.Sc., Gershoff Professor of Nutrition Science and Policy, and director and senior scientist, Cardiovascular Nutrition Laboratory, Tufts University, Boston; April 1, 2013, online, Annals of Internal Medicine


'/>"/>
Copyright©2012 ScoutNews,LLC.
All rights reserved  

Related medicine news :

1. Fish, But Not Fish Oil Supplements, May Shield Against Stroke
2. Novel compound demonstrates anti-leukemic effect in zebrafish, shows promise for human treatment
3. Could Being a Little Overweight Help You Live Longer?
4. Want to Live Longer? Turn Off That TV and Stand Up
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Eat Fish, Live Longer?
(Date:6/20/2017)... ... 20, 2017 , ... Caduceus International Publishing (CIP), a leading ... new online course entitled Personal & Community Health for the Fall ... achieving optimal well-being and teaches students how to apply them in their everyday ...
(Date:6/20/2017)... , ... June 20, 2017 , ... ... contending that the introduction of school choice can promote economic development in economically ... school that has, according to the report, contributed to the economic development of ...
(Date:6/20/2017)... , ... June 20, 2017 , ... Leading dental clinicians, ... imaging technology with the VATECH PaX-i and Anatomage systems. With advanced digital images and ... they can place dental implants precisely and restore oral health for those who are ...
(Date:6/20/2017)... ... 20, 2017 , ... New, state-of-the-art magnetic resonance imaging (MRI) ... with advanced capabilities for diagnosing and treating disease. , Jefferson’s Siemens Magnetom ... get a more accurate look inside the patient’s body. The new scanner was ...
(Date:6/20/2017)... Lauderdale, FL (PRWEB) , ... June 20, 2017 , ... ... a new scrub collection featuring seven new products designed to create tailored looks and ... mixture of polyester and cotton easy care stretch twill. , With trendy looks hitting ...
Breaking Medicine News(10 mins):
(Date:6/19/2017)... , June 19, 2017  Researchers from DRUGSCAN ... that they will host a live, complimentary webinar titled, ... the benchtop to the real world" on Wednesday June ... This webinar will feature interviews with ... look into the manipulation techniques abusers use to prepare ...
(Date:6/14/2017)... 2017  In 2016, Embodied Labs took ... competition and came away with $25,000 in seed-fund investment. ... Forbes as "entering the life of another" and by ... "empathy to medical professionals in an entirely new dimension." ... a finalist for the Department of Education,s EdSimChallenge, where ...
(Date:6/9/2017)... , June 9, 2017 AirXpanders, Inc. ... focused on the design, manufacture, sale and distribution of ... on the progress of its commercial roll-out in ... available in more than one hundred (100) medical institutions ... AeroForm offers a needle-free alternative for women who ...
Breaking Medicine Technology: