Limited, low-quality studies find probiotics provide short-term relief in proxy measures of halitosis

Clinical Question

Do probiotics improve halitosis?

Bottom line

The existing data, limited to a few small modest-quality studies, show that probiotics provide short-term reductions in proxy measures of halitosis. 1a

Study design: Meta-analysis (randomized controlled trials)

Funding: Foundation

Setting: Various (meta-analysis)


Henry C. Barry, MD, MS
Michigan State University
East Lansing, MI

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Impact assessment

Very good

Richard Ian Lloyd Sutherland

Probiotics & Halitosis

Compliments to Dr Barry for both aplomb and honesty

Pieter Richard Verbeek

Probiotics and halitosis

Thanks to the review for bringing me a morning smile. Was reading the review and wondering why this article was even included. Well Dr. Barry was right on point with his last comment, "What does this any of this mean to the afflicted person or to those living with (or having conversations with) halitosis sufferers? I haven’t a clue." We need reviews like this once in a while. Well done!


Probiotics in halitosis

Weak evidence that probiotics help halitosis