Study: diet drinks can lead to stroke, dementia

Have a Diet Coke and stroke.

Diet sodas — one of Americans favorite caffeine delivery systems — appears to be just as unhealthy as its sugary cousins

The Washington Post reports that a new study refutes that diet drinks are a better option than those made with sugar or corn syrup.

The new study in the journal Stroke says people who drink diet soda are three times as likely to have a stroke or develop dementia.

“This included a higher risk of ischemic stroke, where blood vessels in the brain become obstructed and Alzheimer’s disease dementia, the most common form of dementia,” Matthew Pase, a Boston University School of Medicine neurologist told The Washington Post.

Paseo is the lead author of the study.

He stressed the study showed just a correlation and not a causation but that diet pop simply “might not be a healthy alternative.”

The study of 2,888 individuals age 45 and overlooked for the development of a stroke and 1,484 participants age 60 and older for dementia over a 10 year period.

There was no association with stroke or dementia found in a parallel study of sugary drinks.

The diet sodas used by those in the study contained the artificial sweeteners saccharin, acesulfame-K, and aspartame.

“So, the bottom line is, ‘Have more water and have less diet soda,” Christopher Gardner, director of Nutrition Studies at the Stanford Prevention Research Center, said in an American  Heart Association news release. “And don’t switch to real soda.”

He added: “Nobody ever said diet sodas were a health food.”


The American Beverage Association said low-calorie sweeteners have been proven safe by worldwide government safety authorities as well as hundreds of scientific studies and there is nothing in this research that counters this well-established fact.

“While we respect the mission of these organizations to help prevent conditions like stroke and dementia, the authors of this study acknowledge that their conclusions do not — and cannot — prove cause and effect,” the beverage association noted.

To read the whole Washington Post story click here.