Probiotics for children with diarrhea: an update

Area of Science:

• Pediatrics
• Microbiology
• Gastroenterology

Background:

• Diarrhea is a common childhood illness with various causes and settings.
• Probiotics are live microorganisms intended to provide health benefits when consumed.
• The efficacy of probiotics for pediatric diarrhea requires comprehensive evaluation across different scenarios.

Purpose of the Study:

• To review the evidence on probiotic efficacy for pediatric diarrhea in diverse clinical settings.
• To identify the most effective probiotic strains and optimal dosages for different types of diarrhea.
• To assess the clinical significance of probiotics in preventing and treating childhood diarrhea.

Main Methods:

• Systematic review of randomized, placebo-controlled trials.
• Analysis of studies focusing on probiotics for day-care-acquired, hospital-acquired, antibiotic-associated, and infectious diarrhea.
• Evaluation of specific probiotic strains including Lactobacillus GG, Bifidobacterium spp., and Saccharomyces boulardii.

Main Results:

• Modest evidence for preventing day-care-acquired diarrhea; efficacy is strain-dependent and clinically mild.
• Conflicting results regarding the prevention of hospital-acquired diarrhea.
• Clear evidence supports the efficacy of Lactobacillus GG and Saccharomyces boulardii in preventing antibiotic-associated diarrhea.
• Significant, moderate clinical benefit observed for Lactobacillus GG, Saccharomyces boulardii, and L. reuteri in treating acute infectious diarrhea, reducing duration by over one day, primarily for rotavirus infections.

Conclusions:

• Probiotics, particularly Lactobacillus GG and Saccharomyces boulardii, are effective for preventing antibiotic-associated diarrhea and treating acute infectious diarrhea in children.
• Strain and dose dependency (≥10 billion/day) are critical factors for probiotic efficacy.
• Evidence for preventing diarrhea in day-care centers and hospitals is less robust, requiring further investigation.