Is type 1 diabetes a chaotic phenomenon

•Continuous glucose monitoring in 10 type 1 diabetes patients over a period of 14 days.•Phase space reconstruction from measured blood glucose variations for all patients.•Determination of the correlation dimension for all patients.•Determination of the maximal Lyapunov exponent and the Lyapunov time for all patients.•Showing that type 1 diabetes could indeed be a chaotic phenomenon.