Table 2.

Well-studied probiotic strains.

Genus	Species	Reference
Lactobacillus	Lacticaseibacillus casei (previously named Lactobacillus casei), Lcb. rhamnosus, Lactobacillus acidophilus, Lactobacillus delbrueckii subsp. bulgaricus, Levilactobacillus brevis (previously named L. brevis), Lactobacillus delbrueckii subsp. lactis (previously named L. lactis), Lactiplantibacillus plantarum subsp. plantarum (previously named L. plantarum), Limosilactobacillus fermentum (previously named L. fermentum)	[46,57,58]
Bifidobacterium	B. bifidum, Bifidobacterium lactis, Bifidobacterium adolescentis, B. longum, B. breve, Bifidobacterium animalis	[55,56,57,59]
Saccharomyces	Saccharomyces boulardii, Saccharomyces cerevisiae M41, Saccharomyces cerevisiae B-18	[48,60]
Streptococcus	Streptococcus thermophilus	[53,61,62]
Escherichia	Escherichia coli Nissle 1917	[63,64]
Bacillus	Bacillus subtilis	[65,66]
Enterococcus	Enterococcus faecalis Enterococcus faecium	[67,68]