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.

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 August 29, 2014 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 August 29, 2014).

Share This




More Health & Medicine News

Friday, August 29, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Killer Amoeba Found in Louisiana Water System

Killer Amoeba Found in Louisiana Water System

AP (Aug. 28, 2014) State health officials say testing has confirmed the presence of a killer amoeba in a water system serving three St. John the Baptist Parish towns. (Aug. 28) Video provided by AP
Powered by NewsLook.com
Who Could Be Burnt by WHO's E-Cigs Move?

Who Could Be Burnt by WHO's E-Cigs Move?

Reuters - Business Video Online (Aug. 28, 2014) The World Health Organisation has called for the regulation of electronic cigarettes as both tobacco and medical products. Ciara Lee looks at the impact of the move on the tobacco industry. Video provided by Reuters
Powered by NewsLook.com
CDC Director On Ebola Outbreak: 'It's Worse Than I Feared'

CDC Director On Ebola Outbreak: 'It's Worse Than I Feared'

Newsy (Aug. 28, 2014) CDC director Tom Frieden says the Ebola outbreak is even worse than he feared. But he also said there's still hope to contain it. Video provided by Newsy
Powered by NewsLook.com
How A 'Rule Of Thumb' Could Slow Down Drinking

How A 'Rule Of Thumb' Could Slow Down Drinking

Newsy (Aug. 28, 2014) A study suggests people who follow a "rule of thumb" when pouring wine dispense less than those who don't have a particular amount in mind. Video provided by Newsy
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:
from the past week

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