Featured Research

from universities, journals, and other organizations

Current evidence does not support selenium for preventing heart disease in well-nourished adults

Date:
January 31, 2013
Source:
Wiley
Summary:
A systematic review finds that in well-nourished adults current evidence does not support selenium for preventing heart disease. The review suggests that taking selenium supplements does not reduce a person's risk of developing heart disease, although most evidence is currently limited to healthy American adults.

A systematic review published today in The Cochrane Library finds that in well-nourished adults current evidence does not support selenium for preventing heart disease. The review suggests that taking selenium supplements does not reduce a person's risk of developing heart disease, although most evidence is currently limited to healthy American adults.

Related Articles


Diet is a key factor influencing heart disease risk. Selenium is one dietary element that could potentially play a role in preventing heart disease by protecting against oxidative stress and inflammation. It is a common food supplement and is often given to guard against heart disease, but with little evidence that it works. In addition, there is concern that consuming too much selenium could increase a person's risk of type 2 diabetes in individuals with high selenium status.

The researchers analysed data from 12 trials that together involved 19,715 people. Compared to placebos, taking selenium supplements did not lead to any statistically significant difference in the risk of death due to heart disease or any cause, or in the occurrence of heart problems. Although supplements were associated with a small increase in the risk of type 2 diabetes, this increase was not large enough to be statistically significant. Side effects included alopecia and dermatitis.

"The limited evidence available at this time does not support the use of selenium supplements in the primary prevention of heart disease in well-nourished populations," said one of the authors Saverio Stranges of Warwick Medical School at the University of Warwick in Coventry, UK. "Taking selenium supplements is probably neither beneficial nor harmful, but given the lack of trials to date, we cannot rule out some low level of increased risk of type 2 diabetes, at least in individuals with high selenium status."

Most current evidence on selenium and heart disease risk is limited to American adults who are already getting adequate levels of selenium in their daily diets. The trials the researchers reviewed involved healthy individuals rather than groups that might be predisposed to selenium deficiency. "We need to know what effect selenium supplements have in less well-nourished populations where dietary intake of the element is lower," said Stranges. "However, the indiscriminate and widespread use of selenium supplements in individuals and populations with adequate or high selenium status is not justified and should not be encouraged."


Story Source:

The above story is based on materials provided by Wiley. Note: Materials may be edited for content and length.


Journal Reference:

  1. Karen Rees, Louise Hartley, Camilla Day, Nadine Flowers, Aileen Clarke, Saverio Stranges. Selenium supplementation for the primary prevention of cardiovascular disease. The Cochrane Library, 2013; DOI: 10.1002/14651858.CD009671.pub2

Cite This Page:

Wiley. "Current evidence does not support selenium for preventing heart disease in well-nourished adults." ScienceDaily. ScienceDaily, 31 January 2013. <www.sciencedaily.com/releases/2013/01/130131084616.htm>.
Wiley. (2013, January 31). Current evidence does not support selenium for preventing heart disease in well-nourished adults. ScienceDaily. Retrieved March 31, 2015 from www.sciencedaily.com/releases/2013/01/130131084616.htm
Wiley. "Current evidence does not support selenium for preventing heart disease in well-nourished adults." ScienceDaily. www.sciencedaily.com/releases/2013/01/130131084616.htm (accessed March 31, 2015).

Share This


More From ScienceDaily



More Health & Medicine News

Tuesday, March 31, 2015

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Solitair Device Aims to Takes Guesswork out of Sun Safety

Solitair Device Aims to Takes Guesswork out of Sun Safety

Reuters - Innovations Video Online (Mar. 31, 2015) — The Solitair device aims to take the confusion out of how much sunlight we should expose our skin to. Small enough to be worn as a tie or hair clip, it monitors the user&apos;s sun exposure by taking into account their skin pigment, location and schedule. Matthew Stock reports. Video provided by Reuters
Powered by NewsLook.com
Soda, Salt and Sugar: The Next Generation of Taxes

Soda, Salt and Sugar: The Next Generation of Taxes

Washington Post (Mar. 30, 2015) — Denisa Livingston, a health advocate for the Dinι Community Advocacy Alliance, and the Post&apos;s Abby Phillip discuss efforts around the country to make unhealthy food choices hurt your wallet as much as your waistline. Video provided by Washington Post
Powered by NewsLook.com
UnitedHealth Buys Catamaran

UnitedHealth Buys Catamaran

Reuters - Business Video Online (Mar. 30, 2015) — The $12.8 billion merger will combine the U.S.&apos; third and fourth largest pharmacy benefit managers. Analysts say smaller PBMs could also merge. Fred Katayama reports. Video provided by Reuters
Powered by NewsLook.com
S. Leone in New Anti-Ebola Lockdown

S. Leone in New Anti-Ebola Lockdown

AFP (Mar. 28, 2015) — Sierra Leone imposed a three-day nationwide lockdown Friday for the second time in six months in a bid to prevent a resurgence of the deadly Ebola virus. Duration: 01:17 Video provided by AFP
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
 
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:  

Breaking News:

Strange & Offbeat Stories

 

Health & Medicine

Mind & Brain

Living & Well

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:  

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile iPhone Android Web
Follow Facebook Twitter Google+
Subscribe RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins