Research Background: In clinical practice, gallbladder ultrasonography is highly \r\ninfluenced by fasting status. Accordingly, numerous studies have demonstrated that \r\nadequate fasting plays a crucial role in optimizing ultrasound image quality and \r\nvisualization. Nevertheless, excessively prolonged fasting may lead to patient discomfort, \r\nincrease the risk of hypoglycaemia in diabeti…