Several studies have found that different strains of the Lactobacillacea family are diminished in people with anxiety and depression, and others have confirmed that different species of Lactobacillus can help prevent and/or treat these conditions
Researchers at the University of Virginia School of Medicine discovered that Lactobacillus bacteria — found in many fermented foods, including yogurt — helps dampen stress responses and prevent depression and anxiety by modulating levels of an immune mediator called interferon gamma (IFNγ). In other words, these beneficial bacteria help “tune” your immune system
Another recent paper describes how Lactobacillus inhibits the growth of gram-negative endotoxin-producing bacteria through a process known as competitive inhibition, and eliminating endotoxin is crucial for health
Endotoxin is one of several factors that impairs mitochondrial function, promotes glycolysis and, ultimately, promotes cancer metabolism
Lactobacilli also benefit your health by breaking down dietary fiber into beneficial short- chain fatty acids, breaking down phytonutrients such as polyphenols, which have anti-inflammatory and antioxidant benefits, promoting the growth of other beneficial gut microbes, and maintaining an appropriate pH level in your gut