Quite simply: mass and class. The high concentration of at least 2x 10E9 colony-forming units ensures that there are sufficient viable colonies.
cultures survive the passage through the stomach undamaged and arrive in the intestine. In addition, they are already active due to the activation phase in water and are therefore "more robust".
One line of thought could be that a pathogenic bacterium does not occur in such a high concentration,
Nevertheless, sometimes enough germs survive the passage through the stomach to make us sick.





























