Frisdranken en de kans op een beroerte?*
Uit een Amerikaanse studie onder ruim 2.500 mensen die tien jaar lang gevolgd werden blijkt dat zij die iedere dag
frisdrank light drinken een veel grotere kans hebben op het krijgen van een
beroerte. Van iedere deelnemer werd bijgehouden wat ze dronken (gewone frisdrank of light), hoe vaak en hoeveel. In de tien jaar kregen 559 mensen een hart- of vaatprobleem, waaronder hersenbloedingen en herseninfarcten. Zij die dagelijks frisdrank light dronken bleken 61% meer kans te hebben op een hart- of vaatprobleem. De kans op een beroerte bleek bij dagelijkse lightdrinkers tot 48% hoger te zijn.
Want to have a stroke? Keep drinking diet sodas
According to research presented at the American Stroke Association's International Stroke Conference 2011 held in Los Angeles, drinking diet sodas could dramatically raise your risk of having a vascular event, mainly a stroke.
Specifically, in the large, multi-ethnic Northern Manhattan Study (NOMAS) involving 2,564 people, scientists found people who drank diet sodas every day had a 61 percent higher risk of vascular events than those who reported not drinking these artificially sweetened sodas.
NOMAS, a collaboration of research teams at Columbia University in New York and Miami's Miller School of Medicine, was started in 1993 to examine stroke incidence and risk factors in an urban and multi-ethnic population. In all, 3,298 participants over 40 years old (with an average age 69) were enrolled in NOMAS through 2001 and these research subjects are still being
followed.
At the beginning of the diet soda study, researchers asked NOMAS participants how many and what kind of sodas they drank. Then, using this data, the scientists grouped the research subjects into seven consumption categories: no soda (less than one soda of any kind per month); moderate regular soda only (between soda per month and six per week); daily regular soda (at least one per day); moderate diet soda only; daily diet soda only; moderate diet soda and sometimes regular soda; and daily diet soda with any regular soda consumption.
During an average follow-up of about a decade, participants had experienced 559 vascular events, including ischemic stroke (caused by a blood clot or blocked vessel) and hemorrhagic stroke (caused by rupture of a weakened blood vessel). The research team factored in the participants' age, sex, race or ethnicity, smoking status, exercise, alcohol consumption and daily caloric intake.
They also took into consideration which people had metabolic syndrome, peripheral vascular disease and heart disease. Taking all of these risk factors into consideration, the increased chance of having a stroke persisted at a rate 48 percent higher for regular diet soda drinkers.
"If our results are confirmed with future studies, then it would suggest that diet soda may not be the optimal substitute for sugar-sweetened beverages for protection against vascular outcomes," said Hannah Gardener, Sc.D., lead author and epidemiologist at the University of Miami Miller School of Medicine in Miami, Florida, in a statement to the media.
So the take away common sense message might seem to be this: if you want to lower your risk for stroke and you drink a lot of diet colas, it couldn't hurt to drink something else.
Right? (Juni 2011)
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