Bad News for Diet Soda Lovers

Study links artificially sweetened drinks with higher risk of stroke and dementia

You might think drinking sugar-free diet soda is better for you than regular soda, which is packed with sugar. After all, experts have been sounding alarm bells for years about the dangers of consuming excessive amounts of sugar, which has been associated with obesity and a litany of health problems.

But new research published in the American Heart Association’s journal Stroke finds that the artificial sweeteners used in diet drinks are also a cause for concern, as they have been linked to a greater risk of stroke and dementia.

The April 2017 study involved 2,888 adults older than 45 and 1,484 adults older than 60. Researchers asked the participants to answer questions about their eating and drinking habits at three separate points during a seven-year period. Then, for the next 10 years, they kept tabs on the participants, recording which of them suffered a stroke or developed dementia.

In the end, researchers learned that those who drank at least one artificially sweetened drink per day were nearly three times more likely to have a stroke or develop dementia compared to those who drank less than one a week. Their findings held up even after adjusting for other factors such as age, gender, calorie intake, diet quality, physical activity and the presence of genetic risk factors for Alzheimer’s disease.

The data collected did not distinguish between the types of artificial sweeteners used in the drinks.

Although lead researcher Matthew Pase of the Boston University School of Medicine acknowledged that the findings showed only a correlation — and not causation — he said they do provide yet one more piece of evidence that diet drinks are not as healthy an alternative to sugary drinks as many people think.

“We recommend that people drink water on a regular basis instead of sugary or artificially sweetened beverages,” he said in a statement.

Pase added that the study shows a need to direct more research to this area, given how often people drink artificially sweetened beverages.

Responding to the new study, the American Beverage Association released a statement saying that low-calorie sweeteners found in beverages have been proven safe by worldwide government safety authorities.

“The FDA, World Health Organization, European Food Safety Authority and others have extensively reviewed low-calorie sweeteners and have all reached the same conclusion — they are safe for consumption,” the statement said. “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.”

Even so, you might want to think twice before gulping down diet soda. A 2015 study of adults 65 and older found that those who drank diet soda daily gained more weight than those who never drank it. Still another previous study found that diet soda could disrupt gut bacteria, leading to glucose intolerance in some people and raising the risk for type 2 diabetes.

Screening in Average-Risk Women for Breast Cancer

Summary of ACOG’s Updated Recommendations for Screening Mammography

  • Women at average risk of breast cancer should be offered screening mammography starting at age 40 years. If they have not initiated screening in their 40s, they should begin screening mammography by no later than age 50 years. The decision about the age to begin mammography screening should be made through a shared decision-making process. This discussion should include information about the potential benefits and harms.
     
  • Women at average risk of breast cancer should have screening mammography every one or two years based on an informed, shared decision-making process that includes a discussion of the benefits and harms of annual and biennial screening and incorporates patient values and preferences.
     
  • Women at average risk of breast cancer should continue screening mammography until at least 75 years. Beyond age 75 years, the decision to discontinue screening mammography should be based on a shared decision making process informed by the woman's health status and longevity.