Drinking just one diet soda a day could triple your risk of stroke or Alzheimer’s, according to a recent study published in the American Heart Association’s journal Stroke.
The long-term study tracked over 2,800 adults aged 45+ for 10 years, revealing a striking link between daily diet soft drink consumption and a nearly threefold increase in the likelihood of developing major neurological conditions.
Daily diet sodas linked to higher brain health risks
The study’s findings are clear:
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Stroke risk: 2.96 times higher
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Alzheimer’s risk: 2.89 times higher
Participants who drank at least one artificially sweetened beverage daily faced significantly greater risks compared to those who rarely or never consumed diet sodas.
Lead researcher Dr. Matthew Pace expressed surprise at the scale of the risk, calling the results a “wake-up call” for consumers who assume diet sodas are a healthier choice.
Not just brain health: full-body risks tied to diet drinks
While promoted as low-calorie alternatives, diet soft drinks may harm more than just your brain. Studies now associate them with:
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Obesity
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Heart disease
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Type 2 diabetes
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Tooth and bone loss
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Kidney strain
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Vascular damage
These effects are often linked to artificial sweeteners like aspartame and sucralose, which were once deemed safe, but are now under renewed scientific scrutiny.
Experts advise healthier beverage alternatives
Nutrition and health experts now recommend steering clear of artificial sweeteners, regardless of calorie count.
Instead, opt for:
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Water
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Herbal teas
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Fresh, unsweetened juices
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Infused water (with fruit or herbs)
As a golden rule: “Zero calories does not mean zero risk.” Long-term health depends on a balanced diet, regular exercise, and minimizing processed food and drink consumption.
This research highlights a growing concern in public health: products marketed as “healthier” can still carry hidden dangers. If you reach for diet soda out of habit, it may be time to rethink your beverage choices — your brain and body will thank you.
