Abstract
Aim
To understand the association between macronutrient composition of a diet with Time in Range (TIR), Time above Range (TAR) and Time below Range (TBR) derived using a Continuous Glucose Monitoring (CGM) device for 14 days.
Methodology
An exploratory analysis on the baseline data of 50 Type 2 Diabetes Mellitus participants with age 25–55 years, HbA1c upto 8% and on Metformin only) enrolled for an interventional clinical trial was performed.
Results
Participants consuming adequate carbohydrates (CHO) of 55 to 60% of total calories had better Average Blood Glucose of 142.0 ± 24.0 mg/dL with a significance of p = 0.03 and Glucose Management Indicator (GMI) of 6.6 ± 0.7% significant at p = 0.01, than those with high CHO intake >60% of the total calories, with Average Blood Glucose - 155.0 ± 13.4 mg/dL and GMI - 7.06 ± 0.4%. Similarly, TIR - 68.2 ± 5.1% and TAR - 23.0 ± 10.8% was significantly better (p = 0.00) among those consuming adequate protein (12–15%) as compared to low protein (≤ 10%) with TIR- 61.0 ± 5.1% & TAR- 32.9 ± 10.3%. A correlation (r = −0.482 & p = 0.00) and simple linear regression analysis (R² = 0.33, F = 7.72, p = 0.000) revealed that when CHO intake increases the TIR decreases whereas TAR increases (r = 0.380 & p = 0.006). We did not find any significant relation between fat intake and TIR, TAR or TBR.
Conclusion
Our results suggest that lowering CHO, while increasing protein in the diet may help improve TIR. Further in-depth studies are needed to confirm these findings.
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Acknowledgements
We acknowledge RSSDI for supporting our study.
Author contributions
Author 1: Conceptualization (equal); Formal Analysis (equal); Investigation (lead); Methodology, Software, and writing – original draft, review, and editing (equal). Author 2: Conceptualization (equal); Formal Analysis (equal); Investigation (supporting); Methodology, Software, and writing – original draft, review, and editing (equal).
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This study is supported by grants from the Research Society for the Study of Diabetes in India (RSSDI).
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The data presented here are from an ongoing crossover clinical trial. The study is ethically approved by the Institutional Ethics Committee of Symbiosis International (Deemed College) (IEC-SIU Pune). The ethics approval number is IEC/SIU/325. The trial is also registered prospectively with Clinical Trials Registry- India. The Trial Registration No. is CTRI/2022/07/044356. This study was conducted in accordance with the tenets of the Declaration of Helsinki.
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Deshmane, A.R., Muley, A.S. Dietary composition and time in range in population with type 2 diabetes mellitus-exploring the association using continuous glucose monitoring device. Endocrine (2024). https://doi.org/10.1007/s12020-024-03787-3
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DOI: https://doi.org/10.1007/s12020-024-03787-3