Bacteria such as B. longum ferment sugars into lactic acid and have many health benefits. (genomenewsnetwork.org)
Various HMO sugar types and concentrations influence bacterial diversity, keeping strains of Bifidobacterium longum subsp infantis in highest abundance in the first few months of life and preventing pathogens from binding to the gut [20]. (scienceandsensibility.org)
The beneficial bacteria (probiotic) known as Bifidobacterium longum NCC3001 has been shown to normalize anxiety - like behavior in mice with infectious colitis (articles.mercola.com)