Research
Micronutrients & recovery
Obesity increases the risk of kidney stones (nephrolithiasis) through lower urine pH, increased urinary oxalate, uric acid, and sodium excretion.
Obesity changes your urine chemistry, making you more likely to form kidney stones. This happens because your body excretes more acid and minerals like oxalate. Maintaining a healthy weight helps normalize these urinary factors and reduces stone risk.
GoodSupportsHIGH confidence
Obesity is associated with a number of risk factors contributing to the higher incidence and prevalence of nephrolithiasis. Higher body weight is associated with lower urine pH and increased urinary oxalate, uric acid, sodium and phosphate excretion.
Why this rating
Supported by population-based studies showing increased prevalence and incidence.
Source
Obesity and Kidney Disease: Hidden Consequences of the Epidemic
Csaba P. Kövesdy et al. · Future Science OA · 2017
DOI 10.4155/fsoa-2016-0081
narrative_reviewCited 14×
Read the paper DOI resolved against Crossref · corpus check 2026-06-10
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