Propionibacterium freudenreichii is a known lactic ferment. In fact, it is traditionally involved in the ripening of Swiss-type cheeses and participates in the formation of the “holes” in these cheeses. Propionibacterium freudenreichii sp. shermanii is a propionic bacteria because it participates, in the intestine, in the production of propionic acid (or propionate), a short-chain fatty acid. How to use: 1 capsule a day to take with a glass of water during food.