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Kalin, Kenny
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Kalin, K., Radholm, K., Wennberg, M., Tremaroli, V., Brolin, H., Woodward, M., . . . Rolandsson, O. (2020). The effect of saccharin consumption on microbiota composition and insulin sensitivity: a clinical, experimental open label pilot study. Paper presented at 56th Annual Meeting of the European-Association-for-the-Study-of-Diabetes (EASD), September 21-25, 2020. Diabetologia, 63(SUPPL 1), S223-S224
Open this publication in new window or tab >>The effect of saccharin consumption on microbiota composition and insulin sensitivity: a clinical, experimental open label pilot study
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2020 (English)In: Diabetologia, ISSN 0012-186X, E-ISSN 1432-0428, Vol. 63, no SUPPL 1, p. S223-S224Article in journal, Meeting abstract (Other academic) Published
Abstract [en]

Background and aims: In a previous study it was suggested that consumption of saccharin, a non-caloric artificial sweetener (NAS), often consumed by individuals with type 2 diabetes mellitus, increases the risk of developing glucose intolerance in rodents and humans through microbiota alterations. However, the study was small and did not use insulin clamp, the gold standard for measuring insulin sensitivity in humans. Thus, our aim was to further investigate whether NAS affect insulin sensitivity and gut microbiota in humans.

Materials and methods: We recruited 14 participants (8 women and 6 men) who were non-diabetic, 60.0 (IQR 56.8-64.0) years of age with a body mass index of 27.9 (IQR 27.1-28.5). The study was an open label study where participants acted as their own control. Their insulin sensitivity was measured before and after exposure of 240 mg saccharin/day for three months. Insulin sensitivity was assessed by hyperinsulinemic-euglycemic clamp and the ‘M value’ was calculated by dividing the glucose infusion rate during the last 60 minutes of the clamp by body weight (mg/kg/min). Stool samples were collected before and after saccharin consumption. Microbiota was analyzed by sequencing of the 16S rRNA gene.

Results: Thirteen of the 14 participants completed the study. There was no change in insulin resistance after exposure to saccharin (mean M value difference (ΔM) 0.0 (SD 1.6). ΔM was not related to age or sex . Individual M values from the first and second insulin clamp are shown in Figure 1 and indicate some individual responses. During the study 6 participants reduced their HbA1c ≥ 3 mmol/mol. Overall, there was no change in composition or richness of the gut microbiota as a result of saccharin consumption. Furthermore, there was no change in microbiota at end of follow-up for participants with a HbA1c reduction compared to participants without a HbA1c reduction of 3 mmol/mol or more. However, there were small differences in gut microbiota between HbA1c reducers and non-reducers at baseline, with lower gut microbiota diversity in reducers. The reducer group was mainly men who tended to lose more weight than non-reducers; the weight loss was, however, not statistically significant. Statistical analyses of study data were performed by using Student’s t-test.

Conclusion: In contrast to prior studies we did not find an effect of NAS on insulin sensitivity. Furthermore, NAS consumption did not alter microbiota composition in these overweight, middle aged adults without type 2 diabetes.

Place, publisher, year, edition, pages
Springer, 2020
National Category
Endocrinology and Diabetes
urn:nbn:se:umu:diva-175387 (URN)10.1007/s00125-020-05221-5 (DOI)000565776600459 ()
56th Annual Meeting of the European-Association-for-the-Study-of-Diabetes (EASD), September 21-25, 2020
Available from: 2020-09-28 Created: 2020-09-28 Last updated: 2020-09-28Bibliographically approved

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