According to the National Kidney Foundation (NKF), citrate - a natural compound in lemons has the effect of inhibiting calcium crystallization, thereby preventing the formation of kidney stones.
Drinking warm lemon water regularly helps increase the amount of citrate in urine, reducing the risk of stone recurrence in people prone to disease.
A study published in the Clinical Journal of the American Society of Nephrology shows that supplementing about 120 ml of diluted lemon juice per day can reduce the risk of kidney stone formation by up to 19%.
Drinking warm lemon in the morning helps stimulate urine secretion, thereby supporting the process of removing waste from the body. Vitamin C and antioxidants in lemons also help reduce oxidative stress, a factor that damages kidney cells.
A diet rich in antioxidants can reduce the risk of chronic kidney disease by up to 20%. Warm lemon water, thanks to its rich vitamin C and flavonoids, is considered a simple but effective supplement source.
So dilute half a fresh lemon with 250 ml of warm water as the right ratio. Avoid drinking lemon that is too thick because it can damage tooth enamel and stomach lining.
Drink in the morning on an empty stomach: This is the time when the body best absorbs citrate and vitamin C. At the same time, warm water helps stimulate circulation, gently starting the digestive and kidney system.
Don't add too much sugar: Refined sugar can increase the risk of insulin resistance and put a burden on the kidneys. If you need sweetness, you should use a little natural honey.
Combined with a moderate water intake: WHO recommends that adults drink 1.5 - 2 liters of water per day, in which warm lemon water can be a part but does not replace the entire amount of water needed.
Despite its many benefits, warm lemon water is not suitable for everyone. People with a history of gastric ulcers, acid reflux or weak tooth enamel should consider the dosage.
The Mayo Clinic also recommends that overusing lemon juice (drinking more than 3 fruits a day) can increase the risk of electrolyte imbalance, especially in patients with kidney failure.