Probiotics vs placebo or no treatment
Participants with at least some Side Effects · children, adults, and the elderly
Intention‐to‐treat analysis: probiotics showed no clear difference in number of participants who experienced at least 1 side effect or… compared with placebo or no treatment (low certainty).
1 finding from 1 review
- Probiotics for preventing acute upper respiratory tract infections 2022 · Cochrane Headline outcomes onlyRR 1.02 [0.9, 1.15]8 studies · 2456 participantsLow