Kale
Kale is rich in calcium and magnesium – two important minerals that help relax muscles and increase the production of the hormone melatonin, which is responsible for regulating sleep cycles.
Research from the American Journal of Clinical Nutrition shows that calcium deficiency can cause difficulty sleeping, while getting enough calcium through foods like kale significantly improves sleep duration and quality.
Lettuce
Lettuce contains lactucarium, a natural compound with sedative properties, which helps reduce stress and promote sleep.
According to research published in the European Journal of Pharmaceutical Sciences, lactucarium in lettuce has the same effect as mild sleeping pills but without the side effects.
Drinking lettuce juice or eating raw lettuce before bed is an effective way to relax.
Sweet potato
Sweet potatoes are a source of complex carbohydrates and potassium, which helps stabilize blood sugar and relax muscles.
Research from the International Journal of Sports Medicine shows that potassium-rich foods like sweet potatoes help reduce nervous tension, improve blood circulation and promote deeper sleep.
Carrot
Carrots are rich in alpha-carotene, a form of vitamin A linked to improved sleep quality.
Research from the US National Institutes of Health (NIH) shows that alpha-carotene not only helps regulate biological rhythms but also helps reduce sleep disorders in the elderly. Drinking carrot juice or preparing carrot dishes for dinner is an ideal choice.
Broccoli
Broccoli is rich in fiber, magnesium and vitamin B6 – nutrients needed to produce serotonin, a neurotransmitter that helps the body relax and fall asleep easily.
Research from the British Dietetic Association recommends broccoli as an ideal dinner dish for people with chronic insomnia.
Beetroot
Beets are rich in natural nitrates and magnesium, which help improve blood circulation and relax muscles, thereby supporting deeper sleep.
Research from the European Journal of Applied Physiology shows that drinking beetroot juice before bed helps improve rest efficiency and reduce fatigue.
Notes when using vegetables to improve sleep:
Eating time: Consume vegetables at dinner or about 1-2 hours before bedtime to give the body enough time to digest and absorb nutrients.
Proper preparation: Vegetables should be prepared by steaming or lightly boiling to retain their nutritional value.
Incorporate a healthy lifestyle: Limit caffeine and sugar intake, and maintain a regular exercise routine to optimize sleep.
