A handful of studies studying the effects of probiotics may be taken out of context. One study on Align probiotic (a Bifidobacterium infantis strain) showed that a few healthy people who took it for several weeks tested positive for methane on a SIBO lactulose breath test. No significant change in symptoms was noted, most likely indicating only that the probiotics had transiently built up in their digestive systems. The vast majority of evidence indicates that probiotics crowd out harmful bacteria without colonizing your gut. They are worth seriously considering to fight SIBO, fungal overgrowth, and leaky gut, and lessen many digestive symptoms. https://drruscio.com/?p=29064
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Dr. Ruscio Radio, DC: Health, Nutrition and Functional Healthcare