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  • Artificial sweeteners...

Artificial sweeteners may affect Blood sugar by altering microbiome of consumer

Written By : Dr. Kamal Kant Kohli Published On 2022-09-23T22:00:57+05:30  |  Updated On 26 Sept 2022 1:39 PM IST
Artificial sweeteners may affect Blood sugar by altering microbiome of consumer
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In 2014, senior author Eran Elinav an immunologist and microbiome researcher at the Weizmann Institute of Science and the German National Cancer Center (DKFZ) and his team found that non-nutritive sweeteners affected the microbiomes of mice in ways that could impact their glycemic responses. The team was interested in whether these results would also be found in humans.

To address this important question, the research team carefully screened over 1300 individuals for those who strictly avoid non-nutritive sweeteners in their day-to-day lives, and identified a cohort of 120 individuals. These participants were broken into six groups: two controls and four who ingested well below the FDA daily allowances of either aspartame, saccharin, stevia, or sucralose.

"In subjects consuming the non-nutritive sweeteners, we could identify very distinct changes in the composition and function of gut microbes, and the molecules they secret into peripheral blood. This seemed to suggest that gut microbes in the human body are rather responsive to each of these sweeteners," says Elinav.

"When we looked at consumers of non-nutritive sweeteners as groups, we found that two of the non-nutritive sweeteners, saccharin and sucralose, significantly impacted glucose tolerance in healthy adults. Interestingly, changes in the microbes were highly correlated with the alterations noted in people's glycemic responses."

To establish causation, the researchers transferred microbial samples from the study subjects to germ-free mice-mice that have been raised in completely sterile conditions and have no microbiome of their own.

"The results were quite striking," says Elinav. "In all of the non-nutritive sweetener groups, but in none of the controls, when we transferred into these sterile mice the microbiome of the top responder individuals collected at a time point in which they were consuming the respective non-nutritive sweeteners, the recipient mice developed glycemic alterations that very significantly mirrored those of the donor individuals.

In contrast, the bottom responders' microbiomes were mostly unable to elicit such glycemic responses," he adds. "These results suggest that the microbiome changes in response to human consumption of non-nutritive sweetener may, at times, induce glycemic changes in consumers in a highly personalized manner."

Elinav says that he expects the effects of the sweeteners will vary person to person because of the incredibly unique composition of our microbiome. "We need to raise awareness of the fact that non-nutritive sweeteners are not inert to the human body as we originally believed. With that said, the clinical health implications of the changes they may elicit in humans remain unknown and merit future long-term studies."

"In the meantime, we need to continue searching for solutions to our sweet tooth craving, while avoiding sugar, which is clearly most harmful to our metabolic health," says Elinav. "In my personal view, drinking only water seems to be the best solution."

Reference:

Jotham Suez, Yotam Cohen, Rafael Valdés-Mas, Uria Mor, Mally Dori-Bachash, Sara Federici, Niv Zmora, Avner Leshem, Melina Heinemann, Raquel Linevsky, Maya Zur, Rotem Ben-Zeev Brik, Aurelie Bukimer, Shimrit Eliyahu-Miller, Alona Metz, Ruthy Fischbein, Olga Sharov, Sergey Malitsky, Maxim Itkin, Noa Stettner, Alon Harmelin, Hagit Shapiro, Christoph K. Stein-Thoeringer, Eran Segal, Eran Elinav. Personalized microbiome-driven effects of non-nutritive sweeteners on human glucose tolerance. Cell, 2022; DOI: 10.1016/j.cell.2022.07.016

Cellblood sugarmicrobiomeFDAglycemicNon-nutritive sweetenersNNSArtificial sweeteners
Source : Cell
Dr. Kamal Kant Kohli
Dr. Kamal Kant Kohli

Dr Kamal Kant Kohli-MBBS, DTCD- a chest specialist with more than 30 years of practice and a flair for writing clinical articles, Dr Kamal Kant Kohli joined Medical Dialogues as a Chief Editor of Medical News. Besides writing articles, as an editor, he proofreads and verifies all the medical content published on Medical Dialogues including those coming from journals, studies,medical conferences,guidelines etc. Email: drkohli@medicaldialogues.in. Contact no. 011-43720751

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