Railroad said:
OKAY I'll bite.
What is acidophilus?
No need to get violent & bite me!
Lactobacillus Acidophilus is the predominant friendly bacteria in the upper intestinal tract. Lactobacillus is the general (genus) name of the bacteria, Acidophilus is the particular strain. It helps reduce the levels of harmful bacteria and yeasts in the small intestine and also produces lactase, an enzyme which is important in the digestion of milk. L. Acidophilus is also involved in the production of B vitamins (niacin, folic acid, and pyridoxine) during the digestive process.
Not only can Acidophilus and other probiotics tune up your intestinal function, counteract antibiotic damage, and stimulate the immune system to function better when you�re relatively well, but when you�re ill, they can also contribute significantly to relief of health problems ranging from indigestion and diarrhea to colon and liver cancer.
http://www.wholehealthmd.com/print/view/1,1560,SU_748,00.html
http://www.diet-and-health.net/articles.php?cont=lactobacillus acidophilus