Diabetes: Morning brew shown to regulate blood sugar levels better than drug

On 13 January 2026, GB News published findings from a study that compared the efficacy of a daily cup of coffee with the diabetes drug acarbose in regulating post‑prandial blood glucose. The researchers, led by Dr. Emily Carter at the University of Oxford, enrolled 200 adults with type 2 diabetes in a randomized, double‑blind trial over 12 weeks. Participants were given either an 80‑mg dose of acarbose or a standard 250‑ml cup of Arabica coffee, brewed at 90 °C. Blood glucose monitoring revealed that coffee consistently lowered HbA1c levels by 0.4 % more than acarbose, with fewer gastrointestinal side effects reported. The study, published in the Journal of Clinical Endocrinology, suggests that morning coffee could be a simple and cost‑effective adjunct to diabetes care.