Bedtime banana and milk intake on sleep and biochemical parameters

Background and Objectives: This study aimed to evaluate the effects of milk and banana given as a bedtime snack to patients with primary insomnia on sleep parameters and some biochemical parameters such as brain- derived neurotrophic factor, leptin, and ghrelin. Methods and Study Design: 21 patients with insomnia who met the inclusion criteria participated in this study. The patients were divided into 3 parallel groups: banana, milk and control. The intervention group were given either 1 portion of banana or just 200 ml of whole-fat milk at bedtime. The control group did not consume any non-routine food. Venous blood samples were taken at baseline and after the study from patients to measure brain-derived neurotrophic factor, leptin and ghrelin concentrations. Sleep quality and architecture were determined by polysomnography and Pittsburg Sleep Quality Index. Results: Pitts- burg Sleep Quality Index scores of the banana and milk group were found to be lower after intervention (p