Navigation Links
Dietary supplements increase cancer risk
Date:5/15/2012

AURORA (May 15, 2012) - Beta-carotene, selenium and folic acid taken up to three times their recommended daily allowance, these supplements are probably harmless. But taken at much higher levels as some supplement manufacturers suggest, these three supplements have now been proven to increase the risk of developing a host of cancers.

"It's not that these nutrients are toxic they're essential and we need them, but we need them in a certain balance," says Tim Byers, MD, MPH, professor of epidemiology at the Colorado School of Public Health and associate director for prevention and control at the University of Colorado Cancer Center.

Byers is senior author of a commentary recently published in the Journal of the National Cancer Institute that discusses the clinical and policy implications of the increased cancer risk from high dose dietary supplements.

"We have a window into less than half of the biology of what these nutrients are doing," Byers says. "We say generalized things about them, calling them an antioxidant or an essential mineral, but true biology turns out to be more complex than that. The effects of these supplements are certainly not limited to the label we give them. And, as we've seen, sometimes the unintended effects include increased cancer risk."

Currently the FDA regulates dietary supplements as food, but, as Byers and colleagues suggest, supplements, especially at high doses, are more accurately described as inhabiting a mid-ground between food and drugs. Like drugs, supplement ingredients are biologically active sometimes for better and sometimes for worse.

"We need to do a better job as a society in ensuring that the messages people get about value versus risk is accurate for nutritional supplements," Byers says. "My conclusion is that taking high doses of any particular nutrient is more likely to be a bad thing than a good thing."


'/>"/>

Contact: Erika Matich
erika.matich@ucdenver.edu
303-524-2780
University of Colorado Denver
Source:Eurekalert

Page: 1

Related medicine news :

1. Dietary changes help some children with ADHD
2. Specific Dietary Goals May Help Diabetics Eat Better
3. Dietary Help Can Boost Cancer Patients Nutrition, But Not Survival
4. Eating smart: Researcher studies foods, dietary supplements that may reduce risk of prostate cancer
5. Increase dietary fiber, decrease disease
6. Food for thought: Contravening lay beliefs of eating at heart of our dietary disasters
7. Dietary Supplements May Harm Older Women: Study
8. Certain dietary supplements associated with increased risk of death in older women
9. Dietary supplements for patients after lung injury do not appear to improve outcomes; may be harmful
10. After Diabetes Diagnosis, Concentrate on Dietary Changes, Study Says
11. Dietary inorganic nitrate may reduce heart dysfunction caused by powerful anti-cancer drug
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:9/21/2017)... ... ... The New England Center for Children® (NECC®), a global leader in education ... the Board of Directors. , “The New England Center for Children is honored ... addition to our team,” said Vincent Strully, Jr., President and CEO of The New ...
(Date:9/21/2017)... ... September 21, 2017 , ... Sagora Senior Living, one ... at Kingwood Assisted Living and Memory Care located at 24025 Kingwood Place Drive, ... assisted living apartments, 43 memory care apartments and 23 extended care apartments. Modern ...
(Date:9/20/2017)... ... September 20, 2017 , ... ... Coating System for clients that rely on safety and cleanliness. This unique flooring ... , Silver has been used for centuries for its antimicrobial properties. Unlike antibiotics, ...
(Date:9/20/2017)... ... September 20, 2017 , ... Mirror ... fall event , Look Awesome This Autumn with CoolSculpting®. Scheduled for Thursday, September ... refreshments. , Mirror Mirror Beauty Boutique is Houston’s largest CoolSculpting ...
(Date:9/20/2017)... Trenton, NJ (PRWEB) , ... September 20, 2017 ... ... and a variety of settings, gather for the National Athletic Trainers’ Association Annual ... displayed and case studies presented. It is also when Athletic Trainers are acknowledged ...
Breaking Medicine News(10 mins):
(Date:9/9/2017)... YORK , Sept. 8, 2017 Dealmed ... largest independent supplier of medical equipment, supplies, drugs, vaccines, ... it has entered into an agreement to acquire Vantage ... equipment based in Holtsville, New York ... specializes in supplying new and emerging medical practices, will ...
(Date:9/7/2017)... MIRAGE, Calif. , Sept. 7, 2017  For nearly two decades, ... service in the Assisted Reproduction Insurance industry. Today, New Life Agency announces ... fertility medications. ... http://pharmacarecard.com/ (PRNewsfoto/PharmaCareCard) ... ...
(Date:9/7/2017)...  Zimmer Biomet Holdings, Inc. (NYSE and SIX: ZBH), ... it will be participating in the Morgan Stanley 15 ... Hyatt hotel in New York.  Zimmer Biomet will present ... Time. A live webcast of the presentation ... at http://investor.zimmerbiomet.com .   ...
Breaking Medicine Technology: