Love the Science? So do we.

The Science Behind LGG® & BB-12®

Explore clear, evidence-led summaries of two of the most researched live bacterial strains:

Lacticaseibacillus rhamnosus GG (LGG®) and Bifidobacterium animalis subsp. lactis BB-12®. We translate peer-reviewed probiotic research, clinical trials, and microbiome science into plain English so you can understand what’s been studied, what it mean, and why it matters.

What you’ll find here*

LGG® research

One of the most researched bacteria in the world. Studies exploring digestive balance, including use alongside antibiotics and in upset tummies, effects on the immune system, plus work in early-life settings; many trials are randomised, double-blind and placebo-controlled. There has also been some research into effects on allergies, the gut-brain axis, irritable bowel syndrome and urogenital health in women.

BB-12® research

A well-known bacteria with decades of high-quality research behind it. Studies on gut balance and recovery around antibiotic use, immune/respiratory outcomes and seasonal wellness, bowel regularity, H. pylori therapy as an adjunct, infant colic, and early oral-microbiome findings. 

Who Conducted These Studies?

It’s important to note that none of the scientific studies quoted here have been conducted by, funded by, or otherwise affiliated with, BetterGuts. These studies have all been conducted by independent research bodies around the world on these bacteria. Organisations from a range of different countries and cultures, some of them medical institutions, some universities, some other organisations, have undertaken research into these bacteria. Both of these bacteria were first identified in the 1980’s, and so have a good 3 decades of research behind them! Not only that, but a good portion of this research has met the highest standards in medical clinical testing.

All of this means that not only is this research of the highest quality, but it’s been conducted by independent research bodies. No bias, no slant, just clear science you can trust.

*We describe what research has studied and observed. We don’t claim to diagnose, treat, prevent or cure disease, and individual responses vary.