Probiotics are live micro-organisms designed to add or replenish friendly bacteria in the gut. Foods can be probiotic if they contain live bacteria. Live yogurt is one of the best-known probiotic foods – others include raw cheese, sauerkraut, miso soup, kefir, kombucha or any other foods that have been fermented or use live cultures.
Bacteria have a terrible reputation. They are seen as disease carriers and signs of a dirty home or an unclean body. They are seen as a dangerous invisible presence that should be eradicated wherever they might possibly appear.
This is in spite of an enormous body of medical and scientific research showing that bacteria are essential for all life.