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:11/26/2014)... 2014 Bunion Bootie, the newest and ... an early celebration of the early holiday shopping season. ... at the promotional price of $29.95 each (normally $33.95 ... to any automatic discounts applied when buying more than ... for complete details. It’s simple: purchasing more Bunion ...
(Date:11/26/2014)... Louisiana Back Institute, leaders of ... minimally invasive spine surgery, announces today the addition ... growing provider network of orthopedic spine surgeons and ... the network’s continuing success providing the most innovative ... who are suffering from orthopedic spine conditions and ...
(Date:11/26/2014)... Sonoran Vein and Endovascular nurse, Jennifer E. ... Award from The American Association of Nurse ... of nurse practitioners. The Distinguished Preceptorship Award recognizes ... a significant contribution toward increasing the awareness and ... Practitioners (AANP) is the largest full-service national professional ...
(Date:11/26/2014)... -- Youngsters who enter puberty early are at increased ... puberty was linked with a number of factors associated ... levels, according to the researchers. Early puberty was also ... and peers, and having friends who were prone to ... study found an association between early puberty and these ...
(Date:11/26/2014)... Teens prescribed anti-anxiety or sleep medications are much ... teens, a new study warns. The findings ... on teenagers before prescribing these drugs to them, ... realize the abuse potential," said lead researcher Carol ... School of Nursing. "These drugs produce highly attractive ...
Breaking Medicine News(10 mins):Health News:Bunion Bootie Temporarily Lowering Prices for Holiday Shopping, Starting Today! 2Health News:Louisiana Back Institute Welcomes Dr. K. Samer Shamieh into Medical Provider Network 2Health News:Sonoran Nurse Receives Distinguished Preceptorship Award from The American Association of Nurse Practitioners 2Health News:Early Puberty Linked to Increased Risk of Depression in Teens 2Health News:Teens Given Anxiety, Sleep Meds May Be at Risk for Drug Abuse 2
... , , , , ... Inc. (NYSE: DVA ), a leading provider of kidney ... announced its nocturnal dialysis patient population has reached a milestone, with ... DaVita(R) centers around the nation. DaVita has one of the largest ...
... , WASHINGTON, Aug. 28 The Catholic Health ... a goal of health coverage for all people in the United ... under consideration. , , "Our message has always ... office of the association. "Health care must respect and protect human ...
... after, and protect liver from damage, experts say , FRIDAY, ... lots of water, get plenty of rest -- and eat ... the amino acids and minerals in asparagus extract may ease ... , Researchers at the Institute of Medical Science and Jeju ...
... disease, research shows , FRIDAY, Aug. 28 (HealthDay News) -- ... help doctors identify patients at high risk of suffering another ... in the ankle to that in the arm. A significant ... suffers from peripheral artery disease, caused by fatty plaque buildup ...
... Our vocabulary continues to grow and expand even in adulthood. Just ... and now we no longer remember when we heard this word ... some stage new words become just as familiar to us as ... in the Academy of Finland,s Neuroscience Research Programme (NEURO) is how ...
... and the University of Pittsburgh Medical Center will be ... conjunction with the G20 Pittsburgh Summit Sept. 24-25. These ... how and why the "eds and meds" sector of ... region,s success. The Eds-Meds program will begin at ...
Cached Medicine News:Health News:DaVita Offers Dialysis While Patients Sleep 2Health News:DaVita Offers Dialysis While Patients Sleep 3Health News:Catholic Health Association Reaffirms Long-Standing Commitment to Reform Health Care But Waits to Endorse Any Specific Bill 2Health News:Asparagus May Ease Hangover 2Health News:Ankle Circulation Could Warn of Future Strokes 2Health News:Familiar and newly learned words are processed by the same neural networks in the brain 2
(Date:11/26/2014)... , Nov. 25, 2014 Reinforcing its commitment ... (NYSE: PHG AEX: PHIA) today ... Administration (FDA) for its IQon Spectral CT , ... first-of-its kind technology adds a new dimension to Computed ... ability to characterize structures based on their material content ...
(Date:11/26/2014)... , Nov. 25, 2014  Array ... today announced that its Chief Executive Officer, ... the following upcoming conferences.  The public is ... webcasts on the Array BioPharma website:  ... 3, 2014Time:1:30 p.m.  Eastern Time Location: Palace ...
(Date:11/26/2014)... , Nov. 25, 2014 Halozyme Therapeutics, Inc. ... Piper Jaffray Healthcare Conference in New York ... a.m. PDT . Dr. Helen Torley , President ... The presentation will be webcast through the "Investors" section ... recording will be made available for 90 days following the ...
Breaking Medicine Technology:Philips receives FDA 510(k) clearance for IQon Spectral CT 2Philips receives FDA 510(k) clearance for IQon Spectral CT 3Halozyme Therapeutics To Present At The Piper Jaffray Healthcare Conference 2
The Linvatec 3mm and 5mm Universal Light Guides are autoclavable. They offer flexibility, superior light transmission, and universal fittings in a lightweight package....
ACMI™ offers an assortment of fiberoptic light guides, high transmission autoclavable fiberoptic light guides, and light guide adapters to connect our scopes to other manufacturers' light sourc...
ACMI™ offers an assortment of fiberoptic light guides, high transmission autoclavable fiberoptic light guides, and light guide adapters to connect our scopes to other manufacturers' light sourc...
ACMI™ offers an assortment of fiberoptic light guides, high transmission autoclavable fiberoptic light guides, and light guide adapters to connect our scopes to other manufacturers' light sourc...
Medicine Products: