RESUMEN
Green banana Musa paradisiaca (GB) has been traditionally used to aid in the treatment of diarrhea. This systematic review and meta-analysis aimed to evaluate current evidence of the effect of GB consumption as a complement to standard treatment in the population with acute or persistent diarrhea. We searched PubMed, Scopus, Web of Science, and LILACS from inception to January 2024; there was no language restriction. Only randomized controlled trials using GB as an intervention were included, and studies using antidiarrheal medication were excluded. A meta-analysis was performed to compare the effect of GB on the resolution of acute and persistent diarrhea. To measure the certainty of evidence, the GRADE assessment was used. Nine randomized controlled trials (seven open and two blinded) were included. Studies were conducted in the pediatric population comprising a total of 3996 patients aged 8 to 34 months, eight studies were written in English and one in Spanish. GB-based food consumption significantly increased the hazard of resolution of diarrhea compared to standard treatment (HR 1.96, 95% CI [1.62; 2.37], p < 0.01; I2 = 52%). The subgroup analysis showed a higher hazard of resolution of diarrhea for children with persistent diarrhea (HR 2.34, 95% CI [1.78; 3.08] compared to acute diarrhea (HR 1.74, 95% CI [1.45; 2.09]).Conclusions: The use of green banana-based foods as a complement to standard treatment in children is probably associated with a faster resolution in acute diarrhea and may aid in the treatment of persistent diarrhea. More clinical trials are necessary to assess if a synergistic effect between GB and other foods exists and proves to be better than GB alone. These findings need to be confirmed in diverse socioeconomic contexts, within the adult population, and under varying health conditionsTrial registration: CRD42024499992.