Our bodies are riddled with billions of bacteria. Nature designed it that way. That may seem to contradict medical science, but there is a reason for this. Despite all the bad press that bacteria get these days, certain bacteria are not only good for us but essential for our health.When we are born our mothers pass on to us vital bacteria (from vaginal fluid and colostrum) which jump start our immune systems. The bacteria begin their life as yeast, attach themselves to the intestines and begin to multiple to eventually make up 75% of our immune systems. These bacteria are known as intestinal micro flora and are essential to the prevention of disease.