Intestinal bacteria

Category A - full version without watermark 720x576 (check terms and conditions at The version with watermark is for free to embed. Several "friendly" intestinal bacteria perform many important bodily functions. There are actually a great many lactobacillus and other bacteria that can inhabit the human colon, but I will mention the three that seem to be most important. These are Lactobacillus acidophilus (the most famous), Lactobacillus bifidus and Streptococcus faecium.