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:12/7/2016)... ... December 07, 2016 , ... Augustine Insurance Agency, a ... and business owners in the greater Dallas metropolitan area, is announcing a charity ... Foundation. , Established in 2009 by active police professionals in the Dallas region, ...
(Date:12/7/2016)... ... ... A. Kevin Spann Insurance, a New York-based firm offering insurance and financial ... charity drive to raise funds that will benefit the Marine Corps League. , The ... FMF Corpsmen. Working closely with the MCL, the A. Kevin Spann team plans to ...
(Date:12/7/2016)... ... December 07, 2016 , ... The ... its fully redesigned website, which launched October 17, 2016, features comprehensive information regarding ... and easy-to-navigate layout. Visitors and patients can discover the latest clinical dermatology treatments ...
(Date:12/7/2016)... ... December 07, 2016 , ... ... Texas, is condemning "scam operations" carried out by unethical locksmith companies and is ... operations to a halt. According to Texas Premier Locksmith, these fraudulent locksmith services ...
(Date:12/7/2016)... (PRWEB) , ... December 07, 2016 , ... "ProBrand Flip ... and all media," said Christina Austin - CEO of Pixel Film Studios. , ProBrand ... easy to use drop zones. Editors can select from a variety of flip book ...
Breaking Medicine News(10 mins):
(Date:12/7/2016)... 2016   Arena Pharmaceuticals, Inc. (NASDAQ: ... enrollment in the ralinepag phase 2 trial.  Ralinepag is ... pathway for the treatment of pulmonary arterial hypertension (PAH). ... "This marks an important step in the ... focus on our pipeline," said Amit Munshi , ...
(Date:12/7/2016)... -- According to responses from U.S. oncologists that participated in ... with non-small cell lung cancer (NSCLC), treatment decisions are made ... status. The findings of the survey were presented today as ... ) at the 2016 World Conference on Lung Cancer (WCLC) ... survey results revealed an overall high rate of EGFR mutation ...
(Date:12/7/2016)... Dec. 7,2016  Based on its recent ... Frost & Sullivan recognizes Nemaura Pharma Limited ... Award for Enabling Technology Leadership. Nemaura Pharma,s ... in traditional drug delivery technologies, especially in ... drug delivery technologies, Memspatch and Micropatch respectively, ...
Breaking Medicine Technology: