2014/03/e2567_fitness_default

Too many diet drinks may spell heart trouble for older women

It appears healthy postmenopausal women who drink two or more diet drinks a day may be more likely to have a heart attack, stroke or other cardiovascular problems, according to research to be presented at the American College of Cardiology’s 63rd Annual Scientific Session.

In fact, compared to women who never or only rarely consume diet drinks, those who consumed two or more a day were 30 percent more likely to suffer a cardiovascular event and 50 percent more likely to die from related disease. Researchers analyzed diet drink intake and cardiovascular risk factors from 59,614 participants in the Women’s Health Initiative Observational Study, making this the largest study to look at the relationship between diet drink consumption, cardiac events and death.

“Our findings are in line with and extend data from previous studies showing an association between diet drinks and metabolic syndrome,” said Ankur Vyas, M.D., fellow, Cardiovascular Diseases, University of Iowa Hospitals and Clinics, and the lead investigator of the study. “We were interested in this research because there was a relative lack of data about diet drinks and cardiovascular outcomes and mortality.”

Information on women’s consumption of diet drinks was obtained through a questionnaire that asked them to report their diet drink consumption habits over the previous three months. This information was assessed at follow-up year three of the Women’s Health Initiative Observational Study. Each drink was defined as the equivalent of a 12-ounce beverage and included both diet sodas and diet fruit drinks. For the purposes of the analysis, researchers divided the women into four consumption groups: two or more diet drinks a day, five to seven diet drinks per week, one to four diet drinks per week, and zero to three diet drinks per month.

After an average follow-up of 8.7 years, the primary outcome — a composite of incident coronary heart disease, congestive heart failure, heart attack, coronary revascularization procedure, ischemic stroke, peripheral arterial disease and cardiovascular death — occurred in 8.5 percent of the women consuming two or more diet drinks a day compared to 6.9 percent in the five-to-seven diet drinks per week group; 6.8 percent in the one-to-four drinks per week group; and 7.2 percent in the zero-to-three per month group.

The association persisted even after researchers adjusted the data to account for demographic characteristics and other cardiovascular risk factors and comorbidities, including body mass index, smoking, hormone therapy use, physical activity, energy intake, salt intake, diabetes, hypertension, high cholesterol and sugar-sweetened beverage intake. Women who consumed two or more diet drinks a day were younger, more likely to be smokers, and had a higher prevalence of diabetes, hypertension and higher body mass index.

But Vyas says the association between diet drinks and cardiovascular problems raises more questions than it answers, and should stimulate further research.

“We only found an association, so we can’t say that diet drinks cause these problems,” Vyas said, adding that there may be

… Continue reading here.
Diet And Weight Loss News — Sciencedaily
— Courtesy “Science News Daily” (ScienceNewsDaily.com) <p>

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Comments

    • BodyBuilding Videos
    • March 31, 2014
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    • March 31, 2014
    Reply

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