Navigation Links
Evidence for omega 3 fats less conclusive than we thought, say experts

A study published online by the BMJ today doesn't find evidence of a clear benefit of omega 3 fats on health.

These findings do not rule out an important effect of omega 3 fats, but suggest that the evidence should be reviewed regularly, say the researchers.

Consumption of long chain omega 3 fatty acids, found in oily fish and fish oils, and a shorter chain omega 3, found in some plant oils, is thought to protect against heart disease. UK guidelines encourage the general public to eat more oily fish, and higher amounts are advised after a heart attack.

Researchers analysed 89 studies (48 randomised controlled trials and 41 cohort studies) to assess the health effects of long and short chain omega 3 fats on total mortality, cardiovascular events, cancer, and strokes.

Each study involved a treatment group and a control group and investigated the effect of omega 3 intake on health for at least six months. Differences in study quality were taken into account to identify and minimise bias.

Pooling the results showed no strong evidence that omega 3 fats have an effect on total mortality or combined cardiovascular events. The few studies at low risk of bias were more consistent, but they also showed no effect of omega 3 on total mortality or cardiovascular events.

When data on long chain omega 3 fats were analysed separately, total mortality and cardiovascular events were not reduced. No study showed increased risk of cancer or stroke with higher intake of omega 3, but there were too few events to rule out important effects.

Other recent reviews of omega 3 trials found that omega 3 fats decrease mortality, but the publication of a large contradictory trial has changed the overall picture. The authors cannot say exactly why the results of this trial differ from the other large studies in this field.

They therefore conclude that it is not clear whether long chain or short chain omega 3 fats (together or separat
'"/>

Source:BMJ-British Medical Journal


Page: 1 2

Related biology news :

1. Evidence of 600-million-year old fungi-algae symbiosis discovered in marine fossils
2. Researchers create pigs that produce heart-healthy omega-3 fatty acids
3. Innovative method for creating a human cytomegalovirus vaccine outlined
4. LIAI scientists make important finding on cytomegalovirus transmission
5. DNA conclusive yet still controversial, Carnegie Mellon professor says
6. Oceans more vulnerable to agricultural runoff than previously thought, study finds
7. Katrina floodwaters not as toxic to humans as previously thought, study says
Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Evidence for omega fats less conclusive than thought say experts

(Date:8/21/2014)... intake, health and quality of life of older adults ... the University of Waterloo receiving close to $1.5 million ... (CIHR). , Professor Heather Keller, of the Faculty ... research chair in nutrition and aging, will receive $979,000 ... in long-term care homes are poorly nourished. The project ...
(Date:8/21/2014)... Strait is a key region in the global oceanic circulation. ... Svalbard warm Atlantic water flows to the north into the ... masses and sea ice push their way out of the ... Atlantic water cools here on its way to the north ... caused in this manner drives the global band of oceanic ...
(Date:8/21/2014)... journal Carcinogenesis by researchers at the University ... adenomatous polyposis coli (APC) in suppressing colorectal cancer ... , Lead author Kristi Neufeld, associate professor in the ... Biology program at the KU Cancer Center, has spent ... the various activities of APC, a protein whose functional ...
Breaking Biology News(10 mins):Grants will fund landmark aging research at Waterloo 2Arctic sea ice influenced force of the Gulf Stream 2Arctic sea ice influenced force of the Gulf Stream 3Research offers insight into cellular biology of colorectal cancer 2Research offers insight into cellular biology of colorectal cancer 3
... differences account for some of the most of the spectacular ... plumage of peacocks, tusks on walruses and antlers on moose. ... mating is thought to be a particularly potent force ... females. However, the genetic processes responsible for producing such ...
... PAUL (05/03/2012) Vegetation, such as a patch of prairie or ... when more plant species are present, a new University of ... found that each species plays a role in maintaining a ... The study found that every additional species in a plot ...
... of California, Berkeley, scientists are drilling into ancient sediments ... clues that could help them better predict how today,s ... increasing population. The lake sediments are among the ... as far as 500,000 years. The core drilling ...
Cached Biology News:Biologists turn back the clock to understand evolution of sex differences 2Plant diversity is key to maintaining productive vegetation, U of M study shows 2Scientists core into California's Clear Lake to explore past climate change 2Scientists core into California's Clear Lake to explore past climate change 3Scientists core into California's Clear Lake to explore past climate change 4
(Date:8/22/2014)... for application as catalysts, sensors, drug delivery ... photonics and molecular electronics. Gaining knowledge of ... and chemical properties, has been challenging. Now, ... that high-resolution electron microscopy can be used ... all gold atoms are observed. The results ...
(Date:8/22/2014)... Aug. 22, 2014 Research and Markets ... Molecular Biology Enzymes, Kits, & Reagents (Cloning, Epigenetics, PCR, ... report to their offering. The global ... in 2013, and is expected to grow at a ... Molecular biology enzymes, kits, & reagents find applications in ...
(Date:8/22/2014)... SC (PRWEB) August 22, 2014 ... indisputable acknowledgement is a national disgrace. Furthermore, every ... in establishing the current, deplorable state of unorganized ... "5 great mistakes," to merely serve as a ... the extent of colossal failure(s) that have accumulated ...
(Date:8/21/2014)... An international research team including DESY scientists has observed ... The team reports in the journal Science ... lattices inside the nanodroplets. It is the first time ... in larger samples of what is known as superfluid ... exceeded our best expectations," says Andrey Vilesov of the ...
Breaking Biology Technology:A breakthrough in imaging gold nanoparticles to atomic resolution by electron microscopy 2Global Molecular Biology Enzymes, Kits, & Reagents (Cloning, Epigenetics, PCR, Restriction Digestion, Sequencing) Market - Forecast to 2018 2Global Molecular Biology Enzymes, Kits, & Reagents (Cloning, Epigenetics, PCR, Restriction Digestion, Sequencing) Market - Forecast to 2018 35 Great Mistakes in Healthcare and How to Fix Them by Dr. Ira Williams 2Scientists observe quantum vortices in cold helium droplets 2
... films ever made on a device the size of an ... could make it possible to build radically smaller storage devices ... devices. There,s just one obstacle on the way. Nano-sized magnets ... hairs above absolute zero. Now a chemistry student at the ...
... 2011 GeneWize Life Sciences, Inc., ... (OTCQB: GNLK), has announced the world,s first full-line ... and the first gene-modulating weight management supplement to complement ... Starting on March 12, GeneWize distributors were able to ...
... a new tool to help diagnose symptomatic patients with Herpes ... common sexually transmitted infections in the world.   ... announced today that it received U.S. Food and Drug Administration ... to detect and differentiate HSV types 1 and 2 in ...
Cached Biology Technology:Heavy metals open path to high temperature nanomagnets 2GeneWize Expands DNA Customization into 3 Mega Markets 2GeneWize Expands DNA Customization into 3 Mega Markets 3BD Diagnostics Receives FDA Clearance for First Fully Automated Molecular Assays for HSV1 and HSV2 from Clinician-Collected External Anogenital Lesion Specimens 2
... Immunogen: Synthetic peptide derived from the C-terminal ... growth factor D iris-expressed growth factor spinal ... mouse and rat by one amino acid ... kDa human mouse and rat PDGF-D proteins. ...
Antibodies were affinity purified using epitopes specific to USP33 immobilized on solid support....
...
... Fd. ELISA Specificity: (4) ,human IgG subclass 1 ... subclass 3 100% ,human IgG subclass 4 ... 100% ... 0.04% ,human IgG Fab ...
Biology Products: