Artificial sweeteners can still lead to obesity, diabetes: study

    Source: Xinhua| 2018-04-24 10:06:07|Editor: ZX
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    NEW YORK, April 23 (Xinhua) -- It may be a case of "out of the frying pan into the fire" for those who switch to zero-calorie artificial sweeteners to avoid the negative health consequences of eating too much sugar, a new study warns.

    Consumption of zero-calorie artificial sweeteners has increased dramatically in recent decades as people are more aware of the health consequences of eating too much sugar. However, new research finds sugar replacements can also cause health changes that are linked with diabetes and obesity.

    The research team, led by Brian Hoffmann, assistant professor in the department of biomedical engineering at the Medical College of Wisconsin and Marquette University, fed different groups of rats diets high in sugar or common zero-calorie artificial sweeteners.

    Then the team tracked biochemical changes in the body after consumption of sugar or sugar substitutes. They also looked at impacts on vascular health by studying how the substances affect the lining of blood vessels.

    "In our studies, both sugar and artificial sweeteners seem to exhibit negative effects linked to obesity and diabetes, albeit through very different mechanisms from each other," Hoffmann said.

    The results suggest artificial sweeteners change how the body processes fat and gets its energy. In addition, they found acesulfame potassium, a common calorie-free sugar substitute, seemed to accumulate in the blood, with higher concentrations having a more harmful effect on the cells that line blood vessels.

    "We observed that in moderation, your body has the machinery to handle sugar; it is when the system is overloaded over a long period of time that this machinery breaks down," Hoffmann said.

    "We also observed that replacing these sugars with non-caloric artificial sweeteners leads to negative changes in fat and energy metabolism," he said.

    However, experts warned that the results should be approached with caution.

    "Much of the research that points to negative impacts of sweeteners are based on animal studies -- specifically mice and rats -- so shouldn't be applied directly to humans as we do have different metabolic pathways," Aisling Pigott, spokesperson for the British Dietetic Association, was quoted as saying by Newsweek, a U.S. magazine.

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