Navigation Links
Vitamin C May Play Role in Stroke Prevention
Date:1/11/2008

Experts suspect that healthy diet and lifestyle are at root of reduced risk,,

FRIDAY, Jan. 11 (HealthDay News) -- Having higher levels of vitamin C in your blood may reduce your risk of stroke, new research suggests.

People with the highest concentrations of vitamin C in their blood had a 42 percent lower risk of stroke than people with the lowest levels, according to the study, which is in the January issue of The American Journal of Clinical Nutrition.

But, that doesn't mean that popping mega-doses of vitamin C supplement can ward off a brain attack, health experts cautioned.

"In the study itself, the authors made a strong point that they couldn't conclude that vitamin C directly lowers stroke risk," said Dr. Keith Siller, medical director of New York University Medical Center's Comprehensive Stroke Care Center. "It's not necessarily the vitamin C itself. Vitamin C may be a marker of a general healthy lifestyle, and high levels of plasma vitamin C probably mean that you're more health conscious."

Dr. Mark Levine, chief of the molecular and clinical nutrition section at the U.S. National Institute of Diabetes and Digestive and Kidney Diseases, agreed that vitamin C alone probably isn't responsible for the stroke risk reduction.

"It's just an association. It could be vitamin C, it could be vitamin C plus other nutrients, and it could be other things independent of vitamin C. People who eat lots of fruits and vegetables may be eating less fast food," said Levine, who also co-authored an editorial in the same issue of the journal.

The real message, said Levine, is that people should be eating more fruits and vegetables to prevent stroke and other health problems. "Get five or more fruits and vegetables daily in a rainbow of colors," he advised.

The new study included information from more than 20,000 people between the ages of 40 and 79 from the United Kingdom. All of the participants completed a health questionnaire, and one blood sample was analyzed for vitamin C levels for each study volunteer.

The average follow-up time was 9.5 years, and the final study included almost 200,000 person-years. During that time, 448 of the study participants had a stroke.

After compensating for other risk factors, such as gender, smoking history, body mass index, blood pressure, cholesterol levels, diabetes, alcohol consumption, physical activity and a history of heart disease, the researchers found that those with the highest levels of vitamin C in their blood had a 42 percent reduced risk of stroke compared to those with the lowest levels.

The difference between the vitamin C levels between the lowest and highest group roughly translates to about one extra fruit or vegetable daily, according to the study.

"The strong inverse association between plasma vitamin C and stroke suggests that plasma vitamin C is likely to be a good biomarker of whatever causal factors affect stroke risk, most plausibly the dietary intake of plant foods," the study's authors wrote.

"This study did not prove that vitamin C directly causes these benefits. It could be related to something else you do in your diet. We just don't know what the mechanism is that reduces stroke risk," said Siller, who added, "People should still go ahead with the American Dietetic Association recommendations to incorporate more fruits and vegetables into their diet. Don't rush to the store to buy vitamin C supplements."

"Many, many studies show a strong association between those who eat fruits and vegetables and a health benefit, and that benefit comes from eating foods, not supplements," Levine added.

More information

To learn more about stroke prevention, visit the National Institute of Neurological Disorders and Stroke.



SOURCES: Mark Levine, M.D., chief, molecular and clinical nutrition section, U.S. National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, Md.; Keith Siller, M.D., medical director, Comprehensive Stroke Care Center, New York University Medical Center, and assistant professor of neurology and psychiatry, New York University School of Medicine, New York City; January 2008, The American Journal of Clinical Nutrition


'/>"/>
Copyright©2008 ScoutNews,LLC.
All rights reserved

Related medicine news :

1. Join the Vitamin D Revolution: How to Get 30 Minutes of Daily Sunshine for Optimal Health
2. Low Vitamin D Linked to Heart Risk
3. Vitamin D2 is as effective as vitamin D3 in maintaining concentrations of 25-hydroxyvitamin D
4. More Energy & Immunity With Vitamin Supplements This Winter
5. Extra Doses of Vitamins C, E Dont Guard Against Preeclampsia
6. Natural Nutrition to Launch New Vegetarian Vitamin D Line of Products
7. Mission Pharmacal Launches CitraNatal(TM) Prescription Prenatal Vitamin Line
8. Global view shows link between endometrial cancer and vitamin D status
9. Citrus juice, vitamin C give staying power to green tea antioxidants
10. Drug slows prostate tumor growth by keeping vitamin A active
11. Exercise Trumps Vitamin Supplements When it Comes to Heart Disease and Cancer, From the Harvard Mens Health Watch
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:4/25/2017)... CA (PRWEB) , ... April 25, 2017 , ... ... access, support, and collaboration, announces Mirroring360 Pro . This new addition to ... comprehensive collaboration experience for education and business. , Mirroring360 Pro enables educators, business ...
(Date:4/25/2017)... Indianapolis, IN (PRWEB) , ... April 25, 2017 ... ... Washington, D.C., CEOs, CFOs and HR decision-makers are preparing for how his administration ... Life Financial will provide insight into what changes are most likely to make ...
(Date:4/25/2017)... ... April 25, 2017 , ... Patients ... that achieves results in a fraction of the time as traditional braces – ... Significance Dental Specialists, now offers this revolutionary treatment with or without a referral. ...
(Date:4/25/2017)... ... April 25, 2017 , ... Buyers and sellers in the thriving multi-billion ... head shops –can’t help but be heartened by the industry’s current surge. But another ... described as “skunk smell.” At last they can simply, safely and effectively end ...
(Date:4/25/2017)... Fl (PRWEB) , ... April 25, 2017 , ... There ... Memorial Regional Hospital, according to a special report in the May issue of Consumer ... its highest quality ranking for results achieved during and after coronary bypass and ...
Breaking Medicine News(10 mins):
(Date:4/19/2017)... 2017 Global Surgical Drainage Device Market: Overview ... to remove excess liquid and air. The fluid to ... or lymph. Surgical drains are used in a wide ... surgery, cardiovascular surgery, neurosurgery, plastic surgery etc. Common use ... accumulation of fluid e.g. blood or pus. Surgical drains ...
(Date:4/19/2017)... , April 19, 2017  Sorrento Therapeutics, ... antibody-centric, clinical-stage biopharmaceutical company developing new treatments for ... the closing of its previously announced underwritten public ... at a public offering price of $2.00 per ... estimated offering expenses payable by Sorrento.  The net ...
(Date:4/19/2017)... April 19, 2017  SARES•REGIS Group leased the ... developing at Conejo Spectrum Business Park in ... Atara Biotherapeutics, Inc. , a biopharmaceutical company developing ... diseases that have been underserved by scientific innovation, ... for cancer, autoimmune and infectious disease. ...
Breaking Medicine Technology: