DIET SODAS: MORE REASONS TO AVOID THEM

 

Possible cause of strokes and dementia

A new study published in the journal Stroke finds that artificially sweetened beverages are associated with dementia and stroke. Researchers analyzed data from nearly 3000 participants and found that those who consumed 1 or more artificially sweetened beverages per day were more likely to suffer from subsequent dementia and stroke. Interestingly, they did not see the same effects for sugar-sweetened beverages; however, this is anything but a ringing endorsement of these latter drinks! Aspartame, commonly known by the brand name NutraSweet, is the dominant sweetener in these products, and, therefore, may ultimately prove to be the responsible cause, but this awaits further confirmation.

Other studies have also found associations between consuming artificially sweetened beverages and poor health outcomes, and as I have previously noted (http://www.mortontavel.com/2015/03/30/), there is little or no advantage to consuming such beverages in the attempt to lose weight.

Obviously, finding a statistical relationship in such studies does not definitively establish a causative role of such drinks, but it sure should induce some reservations about the consumption of these products.

The bottom line: There is no way to beat drinking drinking plain water, but if you can’t abide by that dictum, how about carbonated water or unsweetened tea?

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MORE BAD NEWS FOR DIET DRINKS

             

Diet soda is very popular, as it is perceived to be the healthier alternative to sugar-containing sodas – although this has been challenged by many studies. A new study[i], recently published, says that increasing diet soda intake is directly linked to greater abdominal obesity in adults 65 years of age and older. This is especially worrisome, for this type of fat distribution is the most likely to lead to diabetes and cardiovascular disease.

For the study, University of Texas researchers enrolled a large number of volunteers who were aged 65 and older at the outset. Diet soda intake, waist circumference, height, and weight were measured, and at three follow-ups for over 9 years.

Findings indicated that the increase in waist circumference among diet soda drinkers, per follow-up interval, was almost triple that among non-users: 2.11 cm versus 0.77 cm, respectively. After adjustment for multiple potential confounders, they found that waist circumference increases of 2.04 cm for non-users, 4.67 cm for occasional users, and 8.06 cm for daily users over the total 9.4-year follow-up period.

Does this information really portend a greater risk for heart disease? Unfortunately, it probably does: As reported—at least in women—in a recent national cardiology meeting, as compared with non-drinkers, those who drank at least two diet drinks daily had a 1.3X higher risk of cardiovascular disease with a similar increase in overall mortality.

Although this type of information does not prove that diet drinks are directly responsible for such bad outcomes, at least it places a severe warning to those consuming such drinks. It also places a burden on the makers of such beverages to prove that they are not unsafe. In the meantime, I recommend that all individuals who drink diet soda daily should try to eliminate their consumption of artificially sweetened drinks in favor of plain old water, or perhaps unsweetened tea.

 



[i] Fowler SPG, Williams K, and Hazuda HP. Diet Soda Intake Is Associated with Long-Term Increases in Waist Circumference in a Biethnic Cohort of Older Adults: The San Antonio Longitudinal Study of Aging. Journal of the American Geriatrics Society; Published Online: March 17, 2015 (DOI: 10.1111/jgs.13376)

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