A study by the National Kidney Foundation shows that the kidneys work most strongly at night, when the body rests and cell regeneration takes place.
Drinking a small amount of warm lemon water before bed helps increase blood flow to the kidneys, promoting the ability to filter out excess urea, creatinine and salt. Lemon juice contains citric acid, a compound that can prevent the formation of calcium oxalate stones and increase the slight alkalinity of urine, thereby supporting optimal kidney function.
Experts say this is a safe way to "natural detox", helping the kidneys rest while still maintaining the effectiveness of blood filtration.
The kidneys are responsible for regulating water and salt in the blood. When not active, the body is prone to edema, fatigue or high blood pressure.
A study by the European Society of Nephrology (2023) said that drinking warm celery water before bed helps the body increase the excretion of sodium and Cream through urine, thanks to the phthalide and luteoline active ingredients in celery that have the ability to dilate blood vessels, supporting better blood circulation through the kidneys.
Celery juice also helps lower uric acid in the blood, which causes stones and gout arthritis.
The group of people who supplement celery juice in the evening for 6 weeks reduce uric acid by an average of 10% and improve their coronary blood pressure index by about 5 mmHg.
This shows that a small drink before bed can bring a "dual detox" effect - both gentle diuretic and helping to reduce the burden on the heart and blood vessels.
When the body is under pressure from toxins or a diet high in protein, free radicals created during metabolism will damage kidney cells. Research by the National Institute of Diabetes and Digestive and kidney Diseases (NIDDK, 2024) confirms that supplementing drinks rich in antioxidants such as lemon honey or celery water helps reduce oxidative stress in kidney tissue by up to 22%.
Deep sleep is the time when the body increases the production of erythropoietin (EPO) - a factor that helps the kidneys regulate red blood cell production.
According to the American Sleep Association (ASA), drinking a glass of warm water mixed with honey before bed can stimulate serotonin production, helping to relieve anxiety and improve sleep quality.
When sleep is improved, blood filtration, kidney cell regeneration and Toxin secretion are more effective.
