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Regular diet soda consumption may significantly raise your risk of heart attack and stroke, according to a study conducted by researchers from the University of Miami and published in the Journal of General Internal Medicine.
Researchers surveyed 2,564 residents of New York City over the age of 68 about their consumption of both diet soda and non-diet soft drinks. They analyzed the data in such a way as to control for potential confounding factors, including age, body mass index, sex, race/ethnicity, education, alcohol consumption, smoking, and daily consumption of calories, carbohydrates, protein, fat, saturated fat and sodium. They also controlled for any effect of underlying health conditions including metabolic syndrome, cardiac disease, diabetes, hypertension, hypercholesterolemia and peripheral vascular disease.
Even after controlling for all these variables, the researchers found that people who drank diet soda daily had a 44 percent higher risk of certain cardiovascular conditions than those who drank such beverages less frequently. A total of 31 percent of the daily diet soda drinkers had suffered a heart attack, stroke, or death from cardiovascular disease by the end of the study, compared with only 22 percent of the less-regular consumers.
No increase in cardiovascular risk was observed from consumption of regular (non-diet) soda.
Something about diet beverages?
Because the study looked only at correlation, the researchers could not say for certain whether the diet soda itself was causing the cardiovascular problems observed.