Navigation Links
Fish oil supplements provide no benefit to brain power
Date:4/21/2010

The largest ever trial of fish oil supplements has found no evidence that they offer benefits for cognitive function in older people.

The OPAL study investigated the effects of taking omega-3 long-chain polyunsaturated fatty acid supplements over a two year period on the cognitive function of participants aged 70-80 years.

The number of people with cognitive impairment is rising and it is estimated that by 2040, more than 81 million people globally will have dementia.

Some studies have suggested that high intakes of omega-3 fatty acids, most commonly found in oily fish, are important for the maintenance of good cognitive health in later life.

The OPAL (Older People And omega-3 Long-chain polyunsaturated fatty acids) study, published today in the American Journal of Clinical Nutrition, was a randomised controlled trial led by Alan Dangour, Senior Lecturer at the London School of Hygiene & Tropical Medicine and colleagues.

The study enrolled 867 participants aged 70-80 years from General Practice clinics in England and Wales. Trial participants who all had good cognitive health at the start of the study were randomly assigned into two groups, one of which received fish oil capsules while the other group received a placebo for two years. Cognitive function was assessed at the start and end of the study by trained research nurses using a series of paper and pencil tests of memory and concentration.

After two years, those participants receiving fish oil capsules had significantly higher levels of omega-3 fatty acids in their blood than those participants receiving placebo capsules. However, cognitive function did not change over the course of the study in either group of participants and there was no evidence that the consumption of omega-3 fatty acids had a benefit for cognitive function in older people.

Dr. Alan Dangour urges caution in interpreting these results: "From the data we have collected in the OPAL study there is no evidence of an important benefit for memory or concentration of increased omega-3 fatty acid consumption over a two year period among older people with good cognitive health. However, it is important to keep in mind that poor cognitive function can take many years to develop and although this is the longest trial of its kind ever conducted, it may be that it was not long enough for any true beneficial effects to be detected among this healthy cohort of older people".


'/>"/>

Contact: Gemma Howe
gemma.howe@lshtm.ac.uk
44-207-927-2802
London School of Hygiene & Tropical Medicine
Source:Eurekalert

Related biology news :

1. Market testing of dietary supplements and drugs underscores value of USPs public health programs
2. Supplements are not nutritious
3. Vitamin C supplements may reduce benefit from wide range of anti-cancer drugs
4. Glutamine supplements show promise in treating stomach ulcers
5. Dietary supplements manufacturers gain new tool to help ensure quality products
6. Carnitine supplements reverse glucose intolerance in animals
7. Eating right, not supplements, is best at keeping your good bacteria healthy, dietitian says
8. Protein supplements are misused by athletes
9. Dietary supplements discouraged for prostate cancer patients
10. Bacterial food supplements for small algae
11. Vitamin and calcium supplements may reduce breast cancer risk
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:1/28/2016)... 2016 Synaptics (NASDAQ: SYNA ), a leading developer ... quarter ended December 31, 2015. --> ... 2016 increased 2 percent compared to the comparable quarter last year ... 2016 was $35.0 million, or $0.93 per diluted share. ... the first quarter of fiscal 2016 grew 9 percent over the ...
(Date:1/22/2016)... , Jan. 22, 2016 ... addition of the "Global Biometrics Market ... their offering. --> http://www.researchandmarkets.com/research/p74whf/global_biometrics ... "Global Biometrics Market in Retail Sector ... --> Research and Markets ( ...
(Date:1/18/2016)... 2016  Extenua Inc., a pioneering developer of ... and access of ubiquitous on-premise and cloud storage, today ... Cyber.  ... C4ISR and Cyber initiatives in support of National ... technology solutions," said Steve Visconti , Extenua ...
Breaking Biology News(10 mins):
(Date:2/4/2016)... 2016  Sangamo BioSciences, Inc. (NASDAQ: SGMO ), ... Edward Lanphier , Sangamo,s president and chief executive ... Sangamo,s ZFP Therapeutic ® development programs and an ... ET on Thursday, February 11, 2016, at the Leerink ... conference is being held in New York ...
(Date:2/4/2016)... Beike Biotechnology, the Shenzhen ... ceremony in late 2015 to mark their successful combined ... --> --> The ... Cell Therapy" was hosted by the Shenzhen Cell Bank ... of Beike Biotechnology Co., Ltd. Shenzhen,s ...
(Date:2/4/2016)... February 4, 2016 --> ... acceleration company is pleased to provide the following update on ... Over the last 3 months we have significantly increased ... agreements exceeding $1,000,000. As a result, we have positioned ourselves ... Inc. license agreement and expect that development to continue on ...
(Date:2/4/2016)... Feb. 4, 2016 Sinovac Biotech Ltd. ("Sinovac" ... provider of biopharmaceutical products in China ... board of directors received on February 4, 2016 a ... a consortium comprised of PKU V-Ming ( Shanghai ... Ltd., CICC Qianhai Development ( Shenzhen ) ...
Breaking Biology Technology: