Postbariatric hypoglycaemia (PBH) is an increasingly recognized complication of bariatric surgery, but its effect on daily functioning remains unclear. In this randomized, single-blind, crossover trial we assessed driving performance in patients with PBH. Ten active drivers PBH (eight females, age 38.2 ± 14.7 years, body mass index 27.2 4.6 kg/m2) received 75 g glucose to induce the late postpr...