What are flora or probiotics?
Flora or probiotics are the beneficial bacteria of the digestive tract. Human health depends on the presence of some bacteria, such as Lactobacillus acidophilus, in the digestive tract and other mucosal membranes. There are at least 400 kinds of microorganisms (bacteria) found in the digestive tract. This amounts to about three pounds of bacteria in the healthy human intestine. These bacteria are essential in the functioning of the intestinal tract and the immune system.