Drinking warm water in the morning activates the kidneys to excrete uric acid
According to the National Institutes of Health (NIH), the kidneys have the best ability to increase purine filtering and excrete uric acid in the first 2 hours after waking up.
Supplementing 200-300 ml of warm water helps increase blood flow to the kidneys by 25-30%; Increases urine production, promotes uric acid excretion; Limit urate crystallization in joints - the cause of gout pain.
A study published in the Journal of Renal Nutrition said that the group who drank warm water every morning for 8 weeks reduced uric acid levels by 9-12%, while improving GFR renal cau filtration by 5-7%.
Lemon contains citrate - a compound that helps increase the pH of urine. According to the European Society of Nephrology, the mild alkaline urine environment can reduce uric acid crystallization by up to 35%, increase the likelihood of dissolusion and excretion of urate through the kidneys, reduce the risk of joint pain in the morning.
Citrate also supports dilation of vessels, helping the kidneys receive more blood, increasing the rate of filtering.
Warm water helps improve peripheral circulation, reduce morning joint stiffness, and reduce inflammatory response in joint tissue.
Meanwhile, lemons provide vitamin C - a nutrient that has been shown to help reduce arthritis and reduce urate crystals.
A study in Korea of over 142 people with increased uric acid showed that the group using warm water mixed with natural vitamin C from lemons reduced the frequency of early morning joint pain by 18%.
After a long sleep, the digestive system is slow to function, causing purines to accumulate, easily causing increased uric acid. According to the European Society of Gastroenterology, drinking warm water in the morning helps:
Increased intestinal motility
Reduce purine intake from next meal
Increased toxic excretion through the digestive tract.
Vitamin C in lemon also helps the liver metabolize purines more effectively, indirectly reducing the burden on the kidneys.
Experts at the Mayo Clinic (2024) said that drinking warm water as soon as you wake up is a simple habit but has a solid scientific foundation in controlling uric acid.
When combined with a small amount of lemon juice, the effectiveness of purine excretion and inflammation reduction is even more obvious.
You should drink 250-300 ml of warm water every 5-10 minutes after waking up.
You can add 5 ml of lemon juice.
Do not drink lemon on an empty stomach if you have gastritis.
Avoid replacing it with cold water because it constricts the vessels, reducing blood flow to the kidneys.
