Summary: In a trial in type 2 diabetes, adding a ketogenic diet to dulaglutide produced greater improvements in glucose, lipids, insulin resistance, sleep quality, and quality of life than dulaglutide alone over six months.
PICO Summary
| Element | Detail |
|---|---|
| Population | 104 patients with type 2 diabetes; randomised trial, China. |
| Intervention | Ketogenic diet plus dulaglutide (study group). |
| Comparison | Dulaglutide alone (control group). |
| Outcome | The combination group had lower blood glucose and lipid levels than control after treatment (p<0.05), with reduced insulin resistance (HOMA-IR) and increased insulin sensitivity (p<0.05). At 6 months the combination group also had lower Pittsburgh Sleep Quality Index scores and better quality of life (p<0.05). |
Expert Commentary
This is a sensible combination trial whose logic is sound, since a ketogenic diet and a GLP-1 receptor agonist act through largely different mechanisms, restricting glucose substrate and enhancing fat oxidation on the one hand, augmenting insulin secretion and satiety on the other, so additive metabolic benefit is plausible and is what the trial reports. The inclusion of sleep and quality-of-life outcomes is a nice touch and the improvements there, alongside better glucose, lipids, and insulin sensitivity, paint a coherent picture. I would temper enthusiasm with the practical and methodological caveats the abstract leaves open. Effect magnitudes and adherence detail are limited, six months cannot speak to the well-known sustainability problem of ketogenic eating, and cardiovascular and renal outcomes were not assessed, while ketogenic diets can raise LDL in some patients and are inappropriate in certain kidney disease or eating-disorder contexts. Can I use this with my patients? Yes, selectively and with support. For a motivated patient on a GLP-1 agonist seeking better control, a well-formulated lower-carbohydrate or ketogenic approach is a reasonable adjunct, ideally introduced gradually with dietitian input, lipid monitoring, and attention to electrolytes, while I keep proven therapy and individual tolerability central.
References
Gao R, Yan L, Du X, et al. Effect of ketogenic diet plus dulaglutide on glucose and lipid metabolism in diabetes mellitus. Pak J Pharm Sci. 2025;38(6):2286–2291. doi:10.36721/PJPS.2025.38.6.REG.13419.1