Boron and kidney stones
What 2 graded rows on boron agree on for kidney stones, and where they differ. Counted side by side, never averaged.
Consensus finder Rows from the Boron page, reviewed Oct 21, 2026 How it decides
What the rows agree on
Each block and row is one graded row from the Boron page, with its PubMed record.
Your question
Boron and kidney stones
2 rows · 230 peopleSplit. 1 row found no difference and 1 had mixed results.
- DGrade D× 2
- Rows
- 2
- Trials
- 2
- People
- 230
What the rows share
From the rowsThe best-graded row, grade D, is a randomized trial of 170 people (2023) and reported mixed results.
The rows run from 60 to 170 people, published from 2023 to 2025: 2 single studies.
The rows
1 no difference · 1 mixed- DGrade DKidney stone number and size · No difference
RCT · n 60 · 2025 · Adults aged 20–65 with kidney stones (Iran)
10 mg/day elemental boron · 8 weeks
Stone number did not fall versus placebo (IRR 1.09, 95% CI 0.65–1.85 for boric acid; 1.30, 0.79–2.13 for boron citrate), and stone size did not differ; only urine phosphorus rose, with boric acid.
- DGrade DPassage of stone fragments after shock-wave lithotripsy · Mixed
RCT · n 170 · 2023 · Adults treated with shock-wave lithotripsy for urinary stones (Iran); 200 randomised, 170 completed
10 mg twice daily (tamsulosin 0.4 mg nightly as comparator) · 2 weeks
Stone clearance was 46.6% with boron and 38.7% with tamsulosin; the abstract's statistics for this comparison are contradictory. Time to clearance (P = 0.648) and pain did not differ, and no significant side effects were reported.