Metabolism Review

Evidence map

Continuous glucose monitoring: what the evidence base looks like

12 publications, 8 of them trials and 0 syntheses. This page describes the shape of that literature rather than summarising its conclusions.

Updated 4 min read 12 citations

What the evidence on continuous glucose monitoring is made of Of 12 publications on this topic, the breakdown by study type: 8 randomised trial, 3 review, 1 other. 831randomised trial (8)review (3)other (1)
12 publications, by study type. Volume is not strength — the same count can be a settled question or a pile of commentary, and which one it is depends almost entirely on this breakdown. Harvested from PubMed and Crossref; publication type as recorded by the source.

What this literature is made of

There is a real trial literature here, but comparatively little synthesis. Individual trials can disagree, and without meta-analysis it is easy to find one that supports almost any position.

The distinction that matters most is between synthesis and primary research. A meta-analysis pools trials and is the closest thing to a settled answer a field produces. A narrative review is one group's reading of the same material and can be selective without being dishonest. Counting them together, which most citation counts do, obscures exactly the thing you want to know.

When the continuous glucose monitoring literature was published Publication years for the 12 papers on this topic, grouped into bands from before 2015 through to 2023 onwards. 2023 onwards6 papers2020-20224 papers2015-20192 papers
Still active. The most recent paper here is from 2026, so this is a field where an answer written today may not hold for long. Publication years as recorded by PubMed and Crossref.

How this page is built

Everything above is computed from the citations this site harvested from PubMed and Crossref, not written by hand. When the weekly harvest finds a new paper on this topic, these counts change and the characterisation changes with them. That is the point: a hand-written claim about how strong an evidence base is starts decaying the day it is written.

Publication type is taken as the source records it. That is imperfect — journals label inconsistently, and a paper indexed as a "review" may be a systematic one — so treat the bands as approximate. They are accurate enough to distinguish a trial literature from a commentary literature, which is the distinction that matters.

The strongest work on this topic

Ordered by study design first, then recency. The full set is listed in the references below.

  1. Natural daylight during office hours improves glucose control and whole-body substrate metabolism — Harmsen JF, Habets I, Biancolin AD et al., 2026, randomised controlled trial
  2. Empagliflozin versus metformin for glucose variability and metabolic outcomes in drug-naïve type 2 diabetes: The EMPA-FIT study — Lim S, Park CY, Jeong IK et al., 2026, randomised controlled trial
  3. DASH4D diet for glycemic control and glucose variability in type 2 diabetes: a randomized crossover trial — Fang M, Wang D, Rebholz CM et al., 2025, randomised controlled trial
  4. Efficacy of Umbilical Cord-Derived Mesenchymal Stem Cells in the Treatment of Type 2 Diabetes Assessed by Retrospective Continuous Glucose Monitoring — Zang L, Li Y, Hao H et al., 2023, randomised controlled trial
  5. Impact of a Low-Carbohydrate Compared with Low-Fat Breakfast on Blood Glucose Control in Type 2 Diabetes: A Randomized Trial — Oliveira BF, Chang CR, Oetsch K et al., 2023, randomised controlled trial
  6. Effect of a High Protein Diet at Breakfast on Postprandial Glucose Level at Dinner Time in Healthy Adults — Xiao K, Furutani A, Sasaki H et al., 2022, randomised controlled trial
  7. Effect of a Hybrid Closed-Loop System on Glycemic and Psychosocial Outcomes in Children and Adolescents With Type 1 Diabetes: A Randomized Clinical Trial — Abraham MB, de Bock M, Smith GJ et al., 2021, randomised controlled trial
  8. Comparison of low- and high-carbohydrate diets for type 2 diabetes management: a randomized trial — Tay J, Luscombe-Marsh ND, Thompson CH et al., 2015, randomised controlled trial
  9. Continuous Glucose Monitoring for Prediabetes: What Are the Best Metrics? — Zahalka SJ, Galindo RJ, Shah VN et al., 2024, review
  10. Complications of Diabetes and Metrics of Glycemic Management Derived From Continuous Glucose Monitoring — Yapanis M, James S, Craig ME et al., 2022, review
How much research is there on continuous glucose monitoring?
12 publications are indexed here, of which 8 are trials and 0 are syntheses.
Does more research mean a stronger conclusion?
No. Composition matters more than volume — five randomised trials support a claim far better than fifty commentaries, and citation counts do not distinguish between them.
How current is this?
The most recent paper indexed here is from 2026. The set is refreshed weekly from PubMed and Crossref.
Why does this page not tell me the answer?
Because summarising a literature into a conclusion requires reading it, and doing that automatically is how confident nonsense gets published. This page tells you how much weight a conclusion could bear; the articles on this site do the interpreting.

References

Every citation below links to the original peer-reviewed record on PubMed or via DOI. Nothing here is a substitute for medical advice.

  1. Natural daylight during office hours improves glucose control and whole-body substrate metabolism Harmsen JF, Habets I, Biancolin AD, et al. · Cell metabolism · 2026 · Randomised controlled trial DOIPubMed 41418772
  2. Empagliflozin versus metformin for glucose variability and metabolic outcomes in drug-naïve type 2 diabetes: The EMPA-FIT study Lim S, Park CY, Jeong IK, et al. · Journal of diabetes and its complications · 2026 · Randomised controlled trial DOIPubMed 41223492
  3. DASH4D diet for glycemic control and glucose variability in type 2 diabetes: a randomized crossover trial Fang M, Wang D, Rebholz CM, et al. · Nature medicine · 2025 · Randomised controlled trial DOIPubMed 40764427Full text
  4. Impact of a Low-Carbohydrate Compared with Low-Fat Breakfast on Blood Glucose Control in Type 2 Diabetes: A Randomized Trial Oliveira BF, Chang CR, Oetsch K, et al. · The American journal of clinical nutrition · 2023 · Randomised controlled trial DOIPubMed 37257563
  5. Efficacy of Umbilical Cord-Derived Mesenchymal Stem Cells in the Treatment of Type 2 Diabetes Assessed by Retrospective Continuous Glucose Monitoring Zang L, Li Y, Hao H, et al. · Stem cells translational medicine · 2023 · Randomised controlled trial DOIPubMed 37738447Full text
  6. Effect of a High Protein Diet at Breakfast on Postprandial Glucose Level at Dinner Time in Healthy Adults Xiao K, Furutani A, Sasaki H, et al. · Nutrients · 2022 · Randomised controlled trial DOIPubMed 36615743Full text
  7. Effect of a Hybrid Closed-Loop System on Glycemic and Psychosocial Outcomes in Children and Adolescents With Type 1 Diabetes: A Randomized Clinical Trial Abraham MB, de Bock M, Smith GJ, et al. · JAMA pediatrics · 2021 · Randomised controlled trial DOIPubMed 34633418Full text
  8. Comparison of low- and high-carbohydrate diets for type 2 diabetes management: a randomized trial Tay J, Luscombe-Marsh ND, Thompson CH, et al. · The American journal of clinical nutrition · 2015 · Randomised controlled trial DOIPubMed 26224300
  9. Continuous Glucose Monitoring for Prediabetes: What Are the Best Metrics? Zahalka SJ, Galindo RJ, Shah VN, et al. · Journal of diabetes science and technology · 2024 · Review DOIPubMed 38629784Full text
  10. Complications of Diabetes and Metrics of Glycemic Management Derived From Continuous Glucose Monitoring Yapanis M, James S, Craig ME, et al. · The Journal of clinical endocrinology and metabolism · 2022 · Review DOIPubMed 35094087Full text
  11. Continuous Glucose Monitoring and Physical Activity Schubert-Olesen O, Kröger J, Siegmund T, et al. · International journal of environmental research and public health · 2022 · Review DOIPubMed 36231598Full text
  12. Continuous Glucose Monitoring Profiles in Healthy Nondiabetic Participants: A Multicenter Prospective Study Shah VN, DuBose SN, Li Z, et al. · The Journal of clinical endocrinology and metabolism · 2019 · Journal article DOIPubMed 31127824Full text