Not all the bacterias are our enemies. Some of them help in the food digestion, others assist the body in the fight against dangerous bacterias, others even add nutrients to the ingested food right before they are even in our mouth.

To fight those that are dangerous to our health, our body has a defense line, the immune system. Not only medication helps to improve it.

Some food is good for the immune system and other bring us allies bacterias. No pasteurized yogurt, for example, is rich in lactobacillius acidophillus, that fight infections caused by fungus.