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

• A. Treating infectious diarrhea
• B. Reducing the incidence of NEC
• C. Prolonging time to remission in Crohn's disease
• D. Eradicating Helicobacter pylori Infection

Answer: (A)

Probiotics like Lactobacillus GG work by helping restore the normal gut microbiota and strengthen the intestinal barrier, which can lessen the impact of infectious agents on the gut. In children with acute infectious diarrhea, randomized trials and reviews have consistently shown that adding Lactobacillus GG can shorten the duration of diarrhea and reduce stool frequency, with a possible decrease in hospital stay. This is the most consistently demonstrated benefit in pediatric practice.

While there is some interest in preventing NEC in very preterm infants, the evidence is less uniform and not as broadly applicable to all pediatric populations. Probiotic effects on Crohn’s disease outcomes are not reliably beneficial, and Lactobacillus GG does not eradicate Helicobacter pylori infection or replace standard antibiotic regimens used for eradication. Thus, the strongest, most consistent pediatric benefit observed with Lactobacillus GG is for treating infectious diarrhea.