If counting sheep is not working, a closer look at the dinner plate may help. Research suggests that potassium, a simple nutrient, could play a role in helping people fall asleep and stay asleep.
Why potassium matters for sleep
Potassium is often discussed in relation to heart health or muscle recovery. The mineral is also important for sleep regulation. It helps muscles relax, keeps nerves firing properly, and supports healthy blood pressure. All of these factors are tied to restorative rest.
The study at a glance
A cross-sectional study involving about 4,600 adults found a link between diet and sleep. Participants with higher potassium intake reported better sleep. The effect was strongest when potassium was consumed at dinner.
Unlike potassium, sodium intake did not show a strong connection to sleep issues in this study. Researchers found that potassium at the evening meal had the most impact. They suggested this may be because it helps regulate nighttime blood pressure and relaxation.
How to eat more potassium at night
Potassium-rich foods are accessible and can be added to an evening meal. Options include sweet potatoes or roasted squash, leafy greens like spinach or kale, avocado, white beans, and fruit such as bananas and citrus.
For those struggling with restless nights, diet may be part of the puzzle. Prioritizing potassium, especially at dinner, could support deeper sleep.
