A new study suggests that the type of carbohydrates you eat before bed could impact your sleep and memory. Researchers tested two different bedtime drinks on 20 healthy men. One with slow-digesting carbs (low glycemic index, LGI) and another with fast-digesting carbs (high glycemic index, HGI). Participants ate a controlled dinner and, four hours later, drank either an LGI drink with isomaltulose (a slow-release sugar) or an HGI drink with glucose (a fast-release sugar). The study found no major differences overall, but when participants had the LGI drink on the second test night, they experienced more deep sleep (28.71% vs. 23.99%) and better memory retention the next day. REM sleep, which is linked to dreaming, was not affected. These findings suggest that choosing slower-digesting carbs before bed may improve sleep quality and help with memory.
Source: https://linkinghub.elsevier.com/retrieve/pii/S027153172400157X
