Surprising
A single-blind trial found Manuka honey rinse cut dry-mouth scores by roughly 2 points — but only in elderly patients, and the effect may not apply to younger adults.
This is one of the first controlled studies on Manuka honey for dry mouth, so the finding is intriguing but far from settled — especially since it was single-blind and tested only in a clinical elderly population.
In a month-long trial, elderly patients who used a Manuka honey oral rinse three times daily reported a significant reduction in dry mouth symptoms (measured by the Xerostomia Inventory Score, which dropped by about 2 points) and showed less objective oral dryness compared to those using natural honey or saline. While promising, the study was single-blind (so participants knew they were getting honey) and only included elderly patients, meaning the results might not hold for younger people or those without clinical dry mouth.
Where this fits in the evidence
This is among the first studies we've indexed on Manuka Honey for Reduced Xerostomia Inventory Score — treat it as an early signal until more research accumulates.
The study
- Randomized Controlled Trial (RCT)
- 2025-05-23
- BMC oral health
This is a plain-language summary of a research finding, not medical advice. Pillser surfaces research signals to help you decide what's worth investigating — always consult a qualified professional before changing what you take.