The use of Lactobacillus GG in pediatric practice has been found to be most effective in which outcome?

• A. reducing NEC
• B. eradicating H. pylori infection
• C. prolonging time to remission in Crohn's disease
• D. treating infectious diarrhea

Answer: (D)

Lactobacillus GG is best supported in children as an adjunct to standard care for acute infectious diarrhea. Probiotics can help restore gut balance, strengthen the intestinal barrier, and modulate immune responses, which can translate into shorter diarrhea duration and fewer stools in pediatric gastroenteritis. Across multiple randomized trials and reviews, this probiotic strain consistently shows a modest but real benefit for treating infectious diarrhea in kids, making it the most evidence-backed use among the options.

The other outcomes aren’t as well supported by pediatric data for this probiotic: eradicating H. pylori typically requires targeted antibiotics rather than probiotic therapy; altering time to remission in Crohn’s disease isn’t reliably achieved with Lactobacillus GG; and while probiotics may have some potential in preterm NEC prevention, the strongest and most consistent pediatric evidence for Lactobacillus GG is still in infectious diarrhea.