Study links soda (diet or not) and sugary juice to dementia
Study links soda (diet or not) and sugary juice to dementia
21 Abril, 2017, 02:10
Matthew Pase, a senior fellow in the department of neurology at Boston University's school of medicine who was one of the co-authors, said that despite no evidence of a causal link, the apparent connection between sweetened drinks and the two conditions "does identify an intriguing trend that will need to be explored in other studies".
The other study found that diet drinks aren't much better.
Their study of nearly 4,400 adults also suggests diet drinks are more likely to cause strokes and dementia than those full of sugar.
The Framingham Heart Study is supported by the National Heart, Lung, and Blood Institute and by grants from the National Institute on Aging and the National Institute of Neurological Disorders and Stroke. The study examined beverage intake of 2,888 people over the age of 45 for its stroke analysis and 1,484 people over the age of 60 for the studys dementia analyses.
"Our study provides further evidence to link consumption of artificially sweetened beverages with the risk of stroke", the team wrote.
Due to the fact that the study is observational and based on food questionnaires, they said further studies are needed on the links between drinks, dementia and stroke.
In the observational study, those who drank at least one artificially-sweetened beverage a day were almost three times more likely to develop ischemic stroke (HR 2.96, 95% CI 1.26-6.97) and 2.9 times more likely to develop Alzheimer's disease (95% CI 1.18-7.07) over 10 years than those who abstained, Matthew Pase, PhD, of Boston University School of Medicine, and colleagues reported in the American Heart Association's journal Stroke.
Those who drank one to six artificially sweetened beverages a week were 2.6 times as likely to experience an ischemic stroke but were no more likely to develop dementia, Pase said.
To their surprise, the team did not find the same risk for sugar-sweetened beverages.
"They may have a role for people with diabetes and in weight loss, but we encourage people to drink water, low-fat milk, or other beverages without added sweeteners". The results align with earlier research done with smaller samples, including one with 737 middle-aged participants in the Boston Puerto Rican Health Study, which found that higher sugar intake was cross-sectionally associated with Alzheimer's-like behavioral patterns. For example, the participants who most frequently drank diet soft drinks were also more likely to be diabetic - which is in itself a risk factor for stroke and dementia. "NIH does not mention zero calorie sweeteners as a risk factor", the statement said.
"In fact, based on the evidence, Public Health England is actively encouraging food and drink companies to use low-calorie sweeteners as an alternative to sugar and help people manage their weight".
"We recommend that people drink water on a regular basis instead of sugary or artificially sweetened beverages".
The findings were published April 20 in the journal Stroke.
"We believe the pathways of which artificially sweetened beverages would affect the brain are probably through vascular mechanisms", Sacco said.
Yet another study showed that artificial sweeteners alter bacteria in the gut, which might also have a negative effect, Pase said.
It's also possible that people who are at risk of developing vascular issues-say, a stroke-may switch to diet soda as a way to try to control those driving factors, like excess weight or high blood sugar.
"Surely we should be trying to help consumers reduce their calorie intake, not presenting unproven claims?"
A new study, however, suggests that this may not be the case.
"It's actually really more of your overall diet and overall lifestyle that is linked to cardiovascular disease and diabetes risk, and we do know that heart disease and diabetes are linked to an increased risk of dementia", said Snyder, who was not involved in the new study.
Notably, data collection did not distinguish between the types of artificial sweeteners used in the beverages.
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