Say no to nightcaps for better glucose and sleep

Say no to nightcaps for better glucose and sleep

A drink in the evening after a long day might make you feel relaxed, but behind the scenes, the effects vary between individuals and don’t typically result in a good night’s rest. 

Even a small amount of alcohol can reduce your sleep quality. (1) Alcohol dehydrates your body, and many drinks contain carbohydrates. Both these factors make it harder for your body to stabilise your glucose. The carbohydrates in the drink can spike your glucose, leading to a rapid drop in energy levels. This can cause restless and disrupted sleep, which means you’ll feel less refreshed the next day. Increased glucose can also cause more frequent urination during the night, which can further disrupt your sleep.  

Good sleep helps glucose control 

Better sleep means less cortisol (a stress hormone) in your body during the night. And lower cortisol helps your body stay steady while you sleep. Sleep is vital to recharging your mind and body. 

A healthier combination

If you do have alcohol in the evening, have some unsalted nuts and water with your beverage. The protein and healthy fats in the nuts support steady glucose, and the water works to keep you hydrated. 

July 19, 2023


  1. Pietilä J, Helander E, Korhonen I, Myllymäki T, Kujala UM, Lindholm H. Acute Effect of Alcohol Intake on Cardiovascular Autonomic Regulation During the First Hours of Sleep in a Large Real-World Sample of Finnish Employees: Observational Study. JMIR Ment Health. 2018 Mar 16;5(1):e23.

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