Ketogenic Diet Versus Standard Diabetic Diet on Glycaemic Control in Adults with Type 2 Diabetes: A Randomized Controlled Trial

Authors

  • Novotny L Department of Endocrinology and Metabolism, Pavol Jozef Safarik University, Kosice, Slovakia Author
  • Doyle N Department of Clinical Nutrition, University of Galway, Galway, Ireland Author
  • Fabbri V Department of Dietetics, Sapienza University of Rome, Rome, Italy Author

DOI:

https://doi.org/10.5281/zenodo.22343838

Keywords:

ketogenic diet, type 2 diabetes mellitus, glycaemic control;, carbohydrate restriction, HbA1c

Abstract

Background: Carbohydrate restriction has re-emerged as a candidate first-line dietary strategy for type 2 diabetes, yet its
comparative merit against standard diabetic diets remains debated. Objective: To synthesise randomised and observational
evidence comparing ketogenic/very-low-carbohydrate diets with standard diabetic diets on glycaemic control. Methods:
Narrative review of randomised controlled trials, systematic reviews/meta-analyses, and mechanistic studies identified through
PubMed, Cochrane, and Europe PMC. Findings: Ketogenic and very-low-carbohydrate diets produce greater short-term HbA1c and
medication reductions than standard diets, with benefits attenuating by 12-24 months. Conclusions: Carbohydrate restriction is
an effective, medically supervised option, not a universal replacement, for standard diabetic diets.

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Published

2026-07-27

How to Cite

Ketogenic Diet Versus Standard Diabetic Diet on Glycaemic Control in Adults with Type 2 Diabetes: A Randomized Controlled Trial. (2026). Journal of Clinical Nutrition and Food Science, 9(1), 9-16. https://doi.org/10.5281/zenodo.22343838

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