Brazil’s Secret Dinner Nutrient for Deeper Sleep Isn’t Magnesium

A recent study suggests that adding potassium to your evening meal may help improve sleep quality. The research, which involved about 4,600 adults, found a link between higher potassium intake and fewer insomnia symptoms.

Potassium is a mineral known for its role in heart health and muscle recovery. It also helps muscles relax and supports nerve function and healthy blood pressure. These factors are tied to better sleep.

The study showed that potassium consumed at dinner had the most impact on sleep. Researchers believe this may be because potassium helps regulate nighttime blood pressure and promotes relaxation. In contrast, sodium intake did not show a strong connection to sleep issues in the study.

Potassium-rich foods are widely available. Adding sweet potatoes, roasted squash, leafy greens such as spinach or kale, avocado, white beans, or fruits like bananas and citrus to your evening meal can provide a natural sleep boost.

For people who have trouble sleeping, diet may be a factor. Prioritizing potassium, especially at dinner, could support deeper and more restorative sleep.