What sort of bacteria are found in yogurt?
“Today yogurt is strictly defined as a milk product produced by the action of two bacteria – Streptoccus thermophilus and Lactobacillus bulgaricus. In addition, yogurt now may contain bifido bacteria and sometimes lactobacillus casei. The first two are needed to convert milk to yogurt and the later two are being added because of their health promoting properties.” Source: http://www.medicinalfoodnews.com/vol02/issue5/yogurt.