British Dietetic Association systematic review of systematic reviews and evidence-based practice guidelines for the use of probiotics in the management of irritable bowel syndrome in adults (2016 update)
Practical considerations
Individuals with IBS can be advised that, despite numerous probiotic RCTs, there is insufficient good evidence to recommend any specific probiotic product and, independent of IBS-subtype, improvement in all symptoms is unlikely.
There are many probiotics available with different preparations, bacterial strains and doses. Individuals with IBS who choose to try probiotics should be aware that some products contain ingredients that may increase IBS symptoms [dietary fibre, fermentable oligosaccharides, disaccharides, monosaccharides and polyols (FODMAPs)]. If an individual finds a probiotic beneficial after 4 weeks, he/she can be advised that the long-term effects of continued use are unknown.
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there is insufficient good evidence to recommend any specific probiotic ...
