Breath hydrogen and methane levels and taxonomic changes
Breath test analyses are used here to measure gas produced in the intestine. Hydrogen and methane are exclusively produced by bacterial fermentation in the gut. No significant changes in hydrogen (p = 0.589) or methane (p = 0.83) production compared to baseline were detected after probiotic intake (Comparison of hydrogen and methane production between baseline and end of multi-strain probiotic intervention. Participants were required to provide a fasted breath sample at baseline (Day 0) and during end of study visit (Day 56 ± 2 days). Hydrogen For analysis of specific correlations between hydrogen production and various taxa, at genus level, hydrogen levels were positively correlated with Breath test analysis showed no changes in methane and hydrogen production levels after probiotic intake in this healthy adult cohort. Correlation analysis linked certain family, genus and species with hydrogen and methane production.