A new study suggests that adding potassium to your evening meal could help improve sleep quality. The mineral, commonly associated with heart health and muscle recovery, may also play a role in helping people fall asleep and stay asleep.
Researchers analyzed data from a cross-sectional study involving about 4,600 adults. The findings showed a link between higher potassium intake and fewer reports of insomnia symptoms. The effect was strongest when potassium was consumed at dinner.
The study also looked at sodium intake but did not find a strong connection between sodium or the ratio of sodium to potassium and sleep problems. Researchers noted that potassium at the evening meal may help regulate nighttime blood pressure and muscle relaxation, which could explain the sleep benefit.
Potassium is found in many common foods. Adding items such as sweet potatoes, roasted squash, leafy greens like spinach or kale, avocado, white beans, bananas, and citrus fruits to dinner can increase potassium intake.
The study was published in the journal Nutrients. The research adds to a growing body of evidence that diet can influence sleep patterns. While magnesium often gets attention for sleep support, potassium may be another nutrient worth considering for those who struggle with restless nights.
Potassium helps muscles relax and supports proper nerve function. Both of these processes are important for the body to transition into restful sleep. The mineral also helps maintain healthy blood pressure, which can drop during sleep and is part of the body’s natural nighttime cycle.
For people who have trouble sleeping, adjusting what they eat at dinner could be a simple step to try. The study suggests that timing matters, with potassium consumed in the evening having the most impact on sleep quality.
