The evidence for multi-strain probiotics is moderate, showing benefits for IBS symptom relief, respiratory infection reduction, and gut health improvement. While promising, more research is needed to fully understand long-term effects and specific strains' efficacy.
Global symptom relief in irritable bowel syndrome (IBS)IBS patients across 43 RCTs (n=5,531) · Systematic review and network meta-analysis of RCTsModerate
Probiotics improved IBS global symptom relief, abdominal pain, bloating, & straining vs placebo; B. coagulans showed the highest probability of being optimal for symptom relief & pain; treatment duration ≥8 weeks produced the best outcomes.
Gut microbiome diversity & general gut healthHealthy adults · Randomized controlled trialModerate
Multi-strain probiotic supplementation improved gut microbiome diversity & markers of gut health vs placebo.
Reduction in incidence & duration of acute upper respiratory tract infectionsChildren and adults across 23 RCTs (n=6,950) · Cochrane systematic review and meta-analysis of RCTsModerate
Probiotic supplementation reduced the number of participants experiencing at least one URTI by 24% (RR 0.76), reduced recurrent URTIs (≥3 episodes) by 41% (RR 0.59), shortened mean infection duration by ~1.2 days, & decreased antibiotic prescriptions by 42% (RR 0.58) vs placebo. Evidence certainty: low to moderate.
Forms & usage▾
Take one capsule daily with water, preferably before meals.