Featured Research

from universities, journals, and other organizations

Dietary supplements could make athletes unwitting drugs cheats

Date:
September 25, 2011
Source:
University of Loughborough
Summary:
Minute levels of banned substances in some dietary supplements are leaving athletes susceptible to failed drugs tests according to new research.

Minute levels of banned substances in some dietary supplements are leaving athletes susceptible to failed drugs tests according to Loughborough University Professor of Sport and Exercise Nutrition Ron Maughan.

Professor Maughan, who chairs the Sports Nutrition Group of the International Olympic Committee Medical Commission, has warned of the dangers of commercially available supplements which could turn athletes into unwitting drugs cheats.

He said: "It is now well established that many dietary supplements contain compounds that can cause an athlete to fail a doping test. In some cases the presence of these compounds is not declared on the product label.

"For some prohibited substances, the amount that will trigger a positive test is vanishingly small and may not be detected by routine analysis of the supplement."

Professor Maughan has raised particular concerns about the presence of the steroid nandrolone (and its metabolic precursors) which are banned by the World Anti-Doping Agency (WADA).

Maughan and his team investigated athlete responses to trace amounts of a nandrolone precursor (19-norandrostenedione) where subjects ingested either water or a commercial sports bar contaminated with minute levels of the banned substance.

Despite contamination levels 1,000 times lower than concentrations typically scanned for during supplement manufacture, volunteers' samples still registered a positive doping result for nandrolone.

Professor Maughan added:

"The potential for such low levels of contamination in a sports supplement to result in adverse test results raises significant concerns for the manufacture of dietary supplements intended for consumption by athletes liable to regular doping tests.

"It presents a serious dilemma for sports supplement manufacturers, athletes, and those responsible for the welfare of athletes."

This week Professor Maughan is presenting at a Science Media Centre briefing on the science of anti-doping testing and at the inaugural event of the Royal Society of Chemistry lecture series -- "Athletes, Chemists, Law and Sport -- Who's Really Winning?."


Story Source:

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


Cite This Page:

University of Loughborough. "Dietary supplements could make athletes unwitting drugs cheats." ScienceDaily. ScienceDaily, 25 September 2011. <www.sciencedaily.com/releases/2011/09/110919113634.htm>.
University of Loughborough. (2011, September 25). Dietary supplements could make athletes unwitting drugs cheats. ScienceDaily. Retrieved August 20, 2014 from www.sciencedaily.com/releases/2011/09/110919113634.htm
University of Loughborough. "Dietary supplements could make athletes unwitting drugs cheats." ScienceDaily. www.sciencedaily.com/releases/2011/09/110919113634.htm (accessed August 20, 2014).

Share This




More Science & Society News

Wednesday, August 20, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Do More Wedding Guests Make A Happier Marriage?

Do More Wedding Guests Make A Happier Marriage?

Newsy (Aug. 20, 2014) A new study found couples who had at least 150 guests at their weddings were more likely to report being happy in their marriages. Video provided by Newsy
Powered by NewsLook.com
Charter Schools Alter Post-Katrina Landscape

Charter Schools Alter Post-Katrina Landscape

AP (Aug. 20, 2014) Nine years after Hurricane Katrina, charter schools are the new reality of public education in New Orleans. The state of Louisiana took over most of the city's public schools after the killer storm in 2005. (Aug. 20) Video provided by AP
Powered by NewsLook.com
Kids' Drawings At Age 4 Linked To Intelligence At Age 14

Kids' Drawings At Age 4 Linked To Intelligence At Age 14

Newsy (Aug. 19, 2014) A study by King's College London says there's a link between how well kids draw at age 4 and how intelligent they are later in life. Video provided by Newsy
Powered by NewsLook.com
Breakingviews: Ebola's Economic Impact Could Eclipse SARS

Breakingviews: Ebola's Economic Impact Could Eclipse SARS

Reuters - Business Video Online (Aug. 18, 2014) The virus ravaging Africa has yet to spread elsewhere. Yet Asia’s SARS crisis in 2003 showed how changes to behaviour can hurt the economy more than the actual disease, says Breakingviews' Una Galani. Video provided by Reuters
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