Xylitol and sinus symptoms
What 3 graded rows on xylitol agree on for sinus symptoms, and where they differ. Counted side by side, never averaged.
Consensus finder Rows from the Xylitol page, reviewed Oct 21, 2026 How it decides
What the rows agree on
Each block and row is one graded row from the Xylitol page, with its PubMed record.
Your question
Xylitol and sinus symptoms
3 rows · 378 peopleThey agree: all 3 rows found an improvement.
- CGrade C× 2
- DGrade D× 1
- Rows
- 3
- Trials
- 9
- People
- 378
- Pooled reviews may count some twice
What the rows share
From the rowsThe best-graded row, grade C, is a meta-analysis of 263 people (2026) and found an improvement.
The rows run from 15 to 263 people, published from 2011 to 2026: 1 pooled review and 2 single studies.
The rows
3 improved- CGrade CChronic sinusitis symptoms with xylitol versus saline rinses (pooled) · Improved
Meta-analysis, 7 studies · n 263 · 2026 · People with chronic rhinosinusitis, including after endoscopic sinus surgery (7 studies)
Nasal irrigation (as given in each study) · Varied by study
Xylitol rinses improved overall sinonasal well-being more than saline (SMD 0.63, 95% CI 0.01 to 1.24), with better NOSE and SNOT symptom scores; endoscopic scores, sense of smell and mucus clearance did not change. Side effects were minimal and transient.
- CGrade CNose and sinus symptoms after nasal surgery (rinse) · Improved
Crossover RCT · n 100 · 2019 · Patients after endoscopic sinus surgery, septoplasty or both at a tertiary referral centre
Nasal irrigation (amount not stated in the abstract) · Postoperative crossover periods (length not stated in the abstract)
After sinus surgery, the SNOT-20 nasal symptom score improved more with xylitol than saline (P = 0.022), as did sneezing, headache and facial pain; after septoplasty, stuffiness improved more. More than half of patients preferred the xylitol rinse.
- DGrade DChronic sinus symptoms (rinse) · Improved
Crossover RCT · n 15 · 2011 · Adults with chronic rhinosinusitis (20 enrolled, 15 analysed)
Daily irrigation · Two 10-day periods
SNOT-20 scores fell by 2.43 points during xylitol rinses and rose by 3.93 during saline (P = 0.0437); visual analogue scores did not differ. Three people (21%) disliked the sweet taste and one had brief stinging.