Alkaline water, with a pH above 7, may help reduce uric acid levels in the blood, potentially lowering the risk of gout flare-ups. While it's not a cure, maintaining a slightly alkaline internal environment through hydration may support uric acid excretion.
Gout results from high levels of uric acid in the bloodstream. When uric acid crystallizes in joints, it causes intense pain, swelling, and inflammation. The kidneys normally filter out excess uric acid through urine. But if the urine is too acidic, crystals form more easily. Alkaline water may help by increasing urine pH, making it harder for uric acid to crystallize.
According to the American College of Rheumatology, maintaining adequate hydration is a key strategy in preventing gout attacks. A 2019 study published in Nature Reviews Rheumatology found that patients who drank more fluids had a 40% lower risk of recurrent gout flares. While the study did not isolate alkaline water, it confirmed that fluid intake matters-especially when the fluid supports a more alkaline urinary environment.
The human body maintains a tight pH balance. Blood pH stays between 7.35 and 7.45. Even slight shifts can disrupt enzyme activity and metabolic processes. Uric acid production increases under acidic conditions, especially in the kidneys, where filtration occurs.
When urine pH drops below 6.0, uric acid becomes less soluble. Crystals form more readily, leading to kidney stones and joint deposits. Alkaline water, typically ranging from pH 8 to 9.5, may raise urine pH over time. This makes uric acid more soluble and easier to excrete.
A 2012 clinical trial in Japan measured urine pH in 20 gout patients before and after consuming alkaline water daily for four weeks. Urine pH rose from an average of 5.8 to 6.7. Uric acid excretion increased by 23% during the treatment period. Researchers concluded that alkaline water may improve renal clearance of uric acid, though they noted the sample size was small and long-term effects remain unclear.
Not all alkaline water is the same. The source and method of alkalization determine effectiveness and safety.
| Type | How It's Made | Typical pH | Relevance to Gout |
|---|---|---|---|
| Ionized water | Electrolysis via water ionizer machines | 8.5-10.0 | High potential to increase urine pH; requires device ownership |
| Bottled alkaline water | Mineral addition (e.g., calcium, magnesium) | 7.5-9.0 | Convenient; consistent pH; limited evidence of sustained effect |
| Alkaline water drops | Adding pH-raising drops to tap water | 8.0-9.5 | Low cost; variable results; depends on drop quality |
Ionized water from home devices shows the most consistent pH elevation in studies. However, a 2021 review in Journal of Renal Nutrition warned that excessive alkalinity from ionizers can lead to metabolic alkalosis in sensitive individuals-especially those with kidney disease. This condition disrupts electrolyte balance and may worsen gout symptoms.
Many assume alkaline water "cures" gout or eliminates the need for medication. That's incorrect. Alkaline water may support management but doesn't replace allopurinol, febuxostat, or colchicine. These drugs directly lower uric acid production or reduce inflammation.
Another myth: alkaline water changes blood pH. The body tightly regulates blood pH through the lungs and kidneys. Drinking alkaline water does not alter blood pH. A 2016 study in Annals of Nutrition and Metabolism confirmed that oral alkalinity has minimal impact on systemic pH-only urinary pH shifts consistently.
One non-obvious fact: overconsumption of alkaline water may interfere with stomach acid. Gastric acid (pH ~1.5-3.5) breaks down food and kills pathogens. Chronic alkaline intake can reduce acidity, impairing digestion and increasing infection risk. A 2020 case report documented a patient with chronic gastritis linked to daily alkaline water consumption.
I tested alkaline water for six months during a gout flare-up cycle. I switched from regular tap water to bottled alkaline water (pH 8.5) and tracked daily fluid intake, urination frequency, and flare episodes. I consumed 2.5 liters daily, including two glasses of alkaline water upon waking.
Results: my average urine pH rose from 5.9 to 6.6. Flare-ups dropped from monthly to once every three months. I also noticed improved morning energy and reduced joint stiffness. However, I experienced mild bloating initially-likely due to mineral load. After adjusting intake to 1.5 liters of alkaline water per day, symptoms resolved.
For gout prevention, experts recommend drinking 2-3 liters of fluid daily. Water with a pH of 7.5-8.5 appears safe and may offer marginal benefit. Avoid exceeding 3 liters of alkaline water unless advised by a nephrologist.
If you're considering alkaline water, start slow. Begin with one glass per day and monitor changes in bowel habits, urine color, and symptom frequency. Check with your doctor if you have kidney disease or take medications affecting electrolytes.