THURSDAY, May 24 (HealthDay News) -- Japanese-American men who
don't eat a diet rich in vitamin D have an increased risk of stroke
later in life, according to a new, long-term study.
The study included nearly 7,400 Japanese-American men living in
Hawaii. They were between the ages of 45 and 68 in the mid- to
late-1960s, when they were first examined and interviewed about
their eating habits.
During 34 years of follow-up, 960 of the men suffered strokes.
Compared to those with the highest levels of vitamin D in their
diet, men who took in the least dietary vitamin D had a 22 percent
higher risk of stroke and a 27 percent higher risk of ischemic
(blood-clot-related) stroke. No difference existed for hemorrhagic
(bleeding) stroke, however.
The study appeared May 24 in the journal
"Our study confirms that eating foods rich in vitamin D might be
beneficial for stroke prevention," study author Dr. Gotaro Kojima,
a geriatric medicine fellow at the John A. Burns School of Medicine
at the University of Hawaii in Honolulu, said in a journal news
Kojima said, however, it's unclear whether the study findings
could be applied to women or to different ethnic groups.
Sunlight generally is the primary source of vitamin D, but
synthesizing vitamin D from the sun becomes more difficult as
people age, Kojima said, meaning older people need to eat more
foods rich in vitamin D or take supplements. Fortified milk,
breakfast cereals, fatty fish and egg yolks all are good sources of
The U.S. Office of Dietary Supplements has more about
All EBSCO Publishing proprietary, consumer health and medical information found on this site is accredited by URAC. URAC's Health Web Site Accreditation Program requires compliance with 53 rigorous standards of quality and accountability, verified by independent audits. To send comments or feedback to our Editorial Team regarding the content please email us at
This content is reviewed regularly and is updated when new and relevant evidence is made available. This information is neither intended nor implied to be a substitute for professional medical advice. Always seek the advice of your physician or other qualified health provider prior to starting any new treatment or with questions regarding a medical condition.
Copyright © 2008 EBSCO Publishing All rights reserved.