Navigation Links
Antioxidant users don't live longer, analysis of studies concludes
Date:4/15/2008

The vitamin industry has long touted antioxidants as a way to improve health by filling in gaps in diet, but a new review of studies found no evidence that the nutrition supplements extend life. Worse, the review authors said that some antioxidants could increase risk for death.

The reviewers want more regulation of the nutraceuticals industry, but an antioxidant researcher with the U.S. Department of Agriculture said that call for stricter monitoring overreaches the conclusions of the review.

The meta-analysis of 67 randomized studies found that supplemental antioxidants do not reduce mortality and that some including vitamin A, beta-carotene and vitamin E could increase mortality. The review combined evidence from more than 200,000 people.

The harmful effects of antioxidant supplements are not confined to vitamin A, said review co-author Christian Gluud, M.D. Our analyses also demonstrate rather convincingly that beta-carotene and vitamin E lead to increased mortality compared to placebo.

The review appears in the latest issue of The Cochrane Library, a publication of The Cochrane Collaboration, an international organization that evaluates medical research. Systematic reviews draw evidence-based conclusions about medical practice after considering both the content and quality of existing medical trials on a topic.

Most people do eat not enough fruits and vegetables to ensure an adequate intake of vital nutrients. However, it is unclear if supplementation can provide benefits akin to a healthy diet and if some antioxidants are, in fact, harmful. Antioxidants are nutrients such as vitamin E, vitamin C, or beta carotene that have been marketed as a way to counter the damaging effects of oxygen in the tissues.

The review included studies of healthy adults and adults diagnosed with specific, stable medical conditions. The authors excluded studies with children or pregnant women, or studies that evaluated su
'/>"/>

Contact: Lisa Espoito
hbns-editor@cfah.org
Center for the Advancement of Health
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. Mounting evidence shows red wine antioxidant kills cancer
2. Antioxidants could provide all-purpose radiation protection
3. Antioxidant to retard wrinkles discovered by Hebrew University researcher
4. Clemson chemists discover new way antioxidants fight debilitating diseases
5. Antioxidant overload may underlie a heritable human disease
6. Preliminary DNA analysis completed on California wolverine
7. Isotope analysis reveals foraging area dichotomy for Atlantic leatherback turtles
8. Surprising discovery from first large-scale analysis of biodiversity and biogeography of viruses
9. New UC analysis shows alarming increase in expected growth of Chinas carbon dioxide emissions
10. Alarming growth in expected CO2 emissions in China, finds UC analysis
11. DOE JGI releases a new version of its metagenome data management and analysis system
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:9/19/2014)... unveiled today by researchers from several Harvard University ... both experienced and aspiring researchers with the intellectual ... robots made from soft, flexible materials. , With ... and other advances in manufacturing technology, soft robotics ... principles drawn from conventional rigid robot design, but ...
(Date:9/19/2014)... SHELTON, Conn. , Sept. 19, 2014 Nxt-ID, Inc. ... a biometric authentication company focused on the growing m-commerce market, updates ... and world champion in the lightweight and light middleweight weight classes, ... Yesterday it was announced that Game of Thrones ... and Married with Children star Katey Sagal ...
(Date:9/18/2014)... Miranda, a small, icy moon of Uranus, is one ... the solar system. Despite its relatively small size, Miranda ... that resulted in the formation of at least three ... coronae. , These coronae are visible in Miranda,s ... km across. Arden corona, the largest, has ridges and ...
Breaking Biology News(10 mins):Soft robotics 'toolkit' features everything a robot-maker needs 2NXT-ID's Vinny Paz Celebrity Ad Wocket Update: Katey Sagal and Ciaran Hinds Attached to His Upcoming Movie 2NXT-ID's Vinny Paz Celebrity Ad Wocket Update: Katey Sagal and Ciaran Hinds Attached to His Upcoming Movie 3Miranda: An icy moon deformed by tidal heating 2Miranda: An icy moon deformed by tidal heating 3Miranda: An icy moon deformed by tidal heating 4Miranda: An icy moon deformed by tidal heating 5Miranda: An icy moon deformed by tidal heating 6Miranda: An icy moon deformed by tidal heating 7
... insight into genetic basis of human diseaseHigh-throughput sequencing of ... which can give clues to the genetic underpinning of ... information from the individual's two chromosomes. Yet many ... individuals' DNA at the level of each chromosome -- ...
... Prehistoric big game hunters and not the last ice age ... sloths and other North American great mammals such as mammoths, ... , Determining whether the first arrival of humans or the ... last Ice Age was responsible for the demise of prehistoric ...
... The National Programme on Substance Abuse Deaths (np-SAD) based at ... London, has found that there has been a decline in ... to 1,372 in 2004, a drop of eight per cent. ... for the year 2004 reported by Coroners and Procurators Fiscal ...
Cached Biology News:California computer scientists double volume of data in NIH biotech repository 2California computer scientists double volume of data in NIH biotech repository 3California computer scientists double volume of data in NIH biotech repository 4Study shows big game hunters, not climate change, killed off sloths 2Study shows big game hunters, not climate change, killed off sloths 3Continued reduction in the number of drug-related deaths in the UK 2Continued reduction in the number of drug-related deaths in the UK 3
(Date:9/19/2014)... September 19, 2014 , The ... Society for Paediatric Endocrinology (ESPE) Meeting  Investment ... medical research in the field of growth  , ... Germany , today announced the first ... 2014. The awards were announced during a Satellite Symposium ...
(Date:9/18/2014)... 18, 2014 HealthTronics, Inc ... interventional radiology products and services, announced that a ... and cryoablation) versus external beam radiotherapy (EBRT) is ... American Urological Association (MAAUA) Annual Meeting in Baltimore, ... Effectiveness of Cryosurgery and External Beam Radiation as ...
(Date:9/18/2014)... A novel robotic system that can operate inside ... tested as part of a biomedical research partnership program ... aim of determining if the robot, in conjunction with ... more accurate, less costly, and less discomforting for the ... deliver prostate cancer therapies with greater precision. , Developed ...
(Date:9/18/2014)... 2014 Texas Governor Rick Perry, ... A&M Health Science Center CEO Brett Giroir, M.D., ... and Human Services (HHS), State of Texas and ... influenza vaccine manufacturing facility in Bryan, Texas, which ... the Texas A&M Biocorridor – a rapidly evolving ...
Breaking Biology Technology:EMD Serono Awards Grant for Growth Innovation (GGI) for the First Time 2EMD Serono Awards Grant for Growth Innovation (GGI) for the First Time 3HealthTronics Announces Data Comparing Cryotherapy Versus Radiation for Treating Prostate Cancer Poster Presented at the American Urological Association Regional Meeting 2Worcester Polytechnic Institute Participates in Clinical Trial for MRI-Compatible Robot Designed to Improve Accuracy of Prostate Cancer Biopsies 2Worcester Polytechnic Institute Participates in Clinical Trial for MRI-Compatible Robot Designed to Improve Accuracy of Prostate Cancer Biopsies 3Worcester Polytechnic Institute Participates in Clinical Trial for MRI-Compatible Robot Designed to Improve Accuracy of Prostate Cancer Biopsies 4Worcester Polytechnic Institute Participates in Clinical Trial for MRI-Compatible Robot Designed to Improve Accuracy of Prostate Cancer Biopsies 5Worcester Polytechnic Institute Participates in Clinical Trial for MRI-Compatible Robot Designed to Improve Accuracy of Prostate Cancer Biopsies 6Texas A&M Dedicates National Pandemic Influenza Vaccine Manufacturing Facility, on Track for 2016 Start-Up Phase 2Texas A&M Dedicates National Pandemic Influenza Vaccine Manufacturing Facility, on Track for 2016 Start-Up Phase 3Texas A&M Dedicates National Pandemic Influenza Vaccine Manufacturing Facility, on Track for 2016 Start-Up Phase 4
... Madison, Wis. - A kind of traveling road show ... one of the most controversial areas of scientific research - ... the skeptics are walking away a little less skeptical. , ... Technology Council , and Sue Carlson, director of operations for ...
... it was announced that First Data , one the ... by the huge private equity firm, Kohlberg Kravis Roberts ... reported : , ,The deal ranks among the 10 ... firms, aided by a flood of cheap debt and eager ...
Whitewater, Wis . - Sharon Ethanol , a subsidiary of <a...
Cached Biology Technology:Traveling stem cell show continues state tour 2Traveling stem cell show continues state tour 3Of private equity, research, and drug development 2Of private equity, research, and drug development 3Of private equity, research, and drug development 4Of private equity, research, and drug development 5