Improved Gastrointestinal Symptoms

Supplement	Research Paper	Effect Type	Effect Size
Bifidobacterium bifidum G9-1	10.1111/jdi.13698	Beneficial	Moderate
Bifidobacterium bifidum G9-1	10.3164/jcbn.20-100	Beneficial	Moderate
Bifidobacterium infantis MAK22B04I	10.1097/MCG.0b013e31827759ac	Beneficial	Moderate
Bifidobacterium infantis	10.1097/MCG.0b013e31827759ac	Beneficial	Moderate
Bifidobacterium infantis BI02	10.1097/MCG.0b013e31827759ac	Beneficial	Moderate
Bifidobacterium infantis HA-116	10.1097/MCG.0b013e31827759ac	Beneficial	Moderate
Bifidobacterium infantis VPro 53	10.1097/MCG.0b013e31827759ac	Beneficial	Moderate
Bifidobacterium infantis SD-6720	10.1097/MCG.0b013e31827759ac	Beneficial	Moderate
LactoSpore	10.1097/MD.0000000000033109	Beneficial	Large
Bifidobacterium infantis	10.3920/BM2020.0016	Beneficial	Small
Lactobacillus acidophilus NCIMB 30333	10.1016/j.dld.2019.12.009	Beneficial	Moderate
Bifidobacterium bifidum SD-5857	10.3168/jds.2017-13803	Beneficial	Large
Lactobacillus gasseri LG-36	10.1159/000452361	Beneficial	Large
Bifidobacterium lactis	10.1007/s12602-021-09900-6	Beneficial	Small
Bifidobacterium animalis subsp. lactis BB-12	10.3390/sports14010019	Beneficial	Small
Bifidobacterium animalis subsp. lactis BB-12	10.1186/s12937-025-01183-9	Beneficial	Small
Lactobacillus plantarum 299v	10.3390/nu15153339	Beneficial	Small
Bifidobacterium plantarum	10.1128/mra.00758-25	Beneficial	Small
Bifidobacterium plantarum	10.1128/msystems.01568-25	Beneficial	Small
Lactobacillus plantarum SD5209	10.1093/advances/nmy063	Beneficial	Moderate
Lactobacillus rhamnosus lysate powder	10.1007/s10787-024-01503-1	Beneficial	Moderate
Lactobacillus rhamnosus lysate powder	10.1007/s12602-023-10045-x	Beneficial	Moderate
Lactobacillus rhamnosus lysate powder	10.3390/nu14030462	Beneficial	Small
Lactobacillus acidophilus L-92	10.5527/wjn.v14.i1.101515	Beneficial	Small
Lactobacillus acidophilus L-92	10.3389/fnut.2025.1572687	Beneficial	Moderate
Enterococcus faecium R0026	10.3389/fnut.2025.1572687	Beneficial	Moderate
Saccharomyces cerevisiae fermentate	10.1038/s41598-024-79360-9	Beneficial	Moderate
Saccharomyces cerevisiae fermentate	10.1111/nyas.15237	Beneficial	Small
Lactobacillus rhamnosus HA-11	10.1097/md.0000000000043126	Beneficial	Small
Bifidobacterium longum Rosell-175 ME	10.3390/nu16111545	Beneficial	Small
Eastern European Wild Kefir Culture	10.3390/microorganisms9122518	Beneficial	Small
Eastern European Wild Kefir Culture	10.3390/ijerph182010654	Beneficial	Moderate
Enterococcus faecium R0026	10.3390/antibiotics12081327	Beneficial	Small
Enterococcus faecium R0026	10.3390/nu14132645	Beneficial	Small
Bifidobacterium breve BBr60	10.1016/j.clnu.2025.07.004	Beneficial	Moderate
Bifidobacterium longum iVE-15	10.3389/fmed.2022.883434	Beneficial	Small
Bacillus coagulans ProDura	10.3390/foods13152444	Beneficial	Small