Propionibacterium freudenreichii is a well-known lactic acid ferment. In fact, it is traditionally involved in the ripening of Swiss cheeses and contributes to the formation of "holes" in these cheeses. Propionibacterium freudenreichii sp. shermanii is a propionic bacterium 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 be taken with a glass of water during a meal.