Synopsis

Source of validity: Scientific
Rating (out of 5): 3

Bifidobacterium animalis lactis is a probiotic strain that has been studied for its effects on gastrointestinal health, including gas and bloating. Several randomized controlled trials and systematic reviews provide evidence supporting its use, although the quality and consistency of the data vary. Studies have shown that supplementation with B. animalis lactis can help modulate the gut microbiota, improve intestinal barrier function, and reduce symptoms associated with functional gastrointestinal disorders such as irritable bowel syndrome (IBS), which often includes gas and bloating as prominent symptoms.

For example, clinical trials using strains such as B. animalis lactis DN-173 010 (found in certain probiotic yogurts) have demonstrated reductions in bloating and abdominal discomfort compared to placebo in adults with mild digestive symptoms. Proposed mechanisms include the enhancement of short-chain fatty acid production, suppression of gas-producing pathogens, and modulation of gut motility. However, while some meta-analyses report a statistically significant benefit, the effect sizes are generally modest and not all studies have found positive results. Moreover, differences in probiotic formulations, doses, and populations studied make it difficult to draw firm conclusions.

Overall, there is moderate scientific evidence (rating: 3/5) to support the use of B. animalis lactis for reducing gas and bloating in otherwise healthy adults and in those with minor functional bowel complaints, but more high-quality, standardized studies are needed to confirm its effectiveness and define its optimal use.

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