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:3/24/2017)... ... March 24, 2017 , ... Mediaplanet today announces distribution ... the current obstacles facing infection prevention and offer strategies for the health care ... infections. , The print component of “Fighting Infection” is distributed within the ...
(Date:3/24/2017)... ... , ... Texas Physical Therapy Specialists (TexPTS) is pleased to announce the ... clinic is the group’s 7th location in San Antonio and 23rd in Texas. ... care from the clinic, which opened March 22, 2017. , The team ...
(Date:3/24/2017)... ... 2017 , ... As the standards bearer of advanced cancer ... positions them as the go-to thought leader in all matters concerning oncology nursing. ... always-on, always-fresh news, views and advocacy engine, called ONS Voice. , The ONS ...
(Date:3/24/2017)... ... March 24, 2017 , ... Gastro Health (“GH”) ... prep patients for colonoscopy at the HyGIeaCare® Center that is to be located ... , The HyGIeaCare® Prep, cleared by the U.S. Food and Drug ...
(Date:3/24/2017)... ... March 24, 2017 , ... “Vintage and Harvest A Cultivation of Christian ... Bible teacher residing in North Carolina with his wife, Anna Marie. He and his ... six grandchildren. David is also the author of “Shadow and Substance.” , “Love, the ...
Breaking Medicine News(10 mins):
(Date:3/24/2017)... FinancialBuzz.com News Commentary   ... cannabis products around the world are projected to gain popularity. A report ... will reach a value of USD 55.8 billion by 2025. ... industry. By the end of 2016, 28 states have now laws and ... states like Arkansas and North Dakota ...
(Date:3/24/2017)... , March 24, 2017 A ReportsnReports.com report ... been growing rapidly as the global sales of Adcetris and Kadcyla ... in the antibody drug conjugates market is driven by large number ... and wider therapeutic window offered by ADCs. ... Browse 3 Tables and 94 Figures, 10 ...
(Date:3/24/2017)... , Mar 24, 2017 Research and Markets ... Global Strategic Business Report" report to their offering. ... The report provides separate comprehensive analytics for ... Europe , Asia-Pacific , ... are provided for the period 2015 through 2022. Also, a six-year historic ...
Breaking Medicine Technology: