LGG · The Most-Studied Probiotic Strain
The single most studied probiotic strain on earth. The strain inside Culturelle.
Probiotics
Key Strains
LGG, S. boulardii, B. infantis 35624
11 entries. 3 rest on strong human evidence. Ordered with the best evidenced first.
11 entries in Key Strains
CNCM I-745 · The Probiotic Yeast
A yeast, not a bacterium, so antibiotics cannot kill it. Take them together.
The High-Potency Multi-Strain With Real Evidence
A high-dose 8-strain probiotic with genuine evidence for pouchitis, and a cautionary tale about formula identity and branding.
Next-Generation Mucin-Degrading Probiotic
A gut-lining bacterium tied to metabolic health, leanness, and immunotherapy response.
Bifidobacterium · The IBS Strain (Align)
The single strain with the strongest IBS evidence. The strain inside Align.
Spore Strain · MTCC 5856 / LactoSpore
The most-studied spore probiotic. IBS, muscle recovery, and excellent survivability.
The Probiotic That Is a "Bad" Bacterium
A century-old probiotic strain of E. coli, evidence-backed for maintaining ulcerative colitis remission, as effective as standard mesalamine in trials.
Fermented Milk · Highest Natural CFU
30+ strains of bacteria and yeasts in one cup. The richest naturally probiotic food.
The Strain Behind a Yogurt Craze
A well-studied strain with real evidence for infant colic, recently the center of a viral "L. reuteri yogurt" longevity craze.
Fermented Soybean · B. subtilis + K2
Fermented with B. subtilis natto, and the single richest dietary source of vitamin K2.
Spore Strain · HU58 / DE111
A soil and natto bacterium that makes its own antibiotics to crowd out pathogens.