Studies have shown that changes in meal time seem to affect metabolic changes and elevated postprandial blood glucose. For diabetics, melatonin level is also an influential factor besides meal time. Melatonin is a hormone secreted in large quantities at night or in weak light. Its main function is to regulate the sleep wake cycle. So how do melatonin receptor genes and dinner time affect an individual’s blood glucose control? Is there any association between the risk of type 2 diabetes and th...