Once they kill the disease destroying pathogens in raw milk it creates an environment for bad pathogens to develop. (realfoodgirlunmodified.com)
Cooking destroys these pathogens, but also reduces the nutrients. (sandykubillus.com)
The reason is because yogurt only has a 2 - 5 strains of beneficial bacteria, none of which aggressively attack and destroy pathogens in the gut. (thehealthyhomeeconomist.com)