Kidney stones (Nephrolithiasis)
Supplements studied for kidney stones (nephrolithiasis).
Overview
Vitamin B6 and potassium citrate have medium-strength evidence for kidney stones across 14 studies combined. Vitamin B6 may lower urine oxalates, particularly in people with type I primary hyperoxaluria, and combined with magnesium may reduce oxalate levels in others.
Prescription potassium citrate appears to help prevent stone recurrence by increasing protective substances in urine, though over-the-counter potassium products are less studied. Black Tea, Apple Cider Vinegar, and Boron have limited or unclear evidence; boron did not help stones pass faster than tamsulosin in one large trial. The heatmap and evidence reviews below compare these options.
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SupplementDEX Database
6 supplements for , and rated at least stars. All purchase bands. No minimum star filter.
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