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Acidophilus and bifidus have a number of health benefits, including improving gastrointestinal health. Acidophilus and bifidus are strains of probiotics, live bacteria that are similar or the same as the helpful bacteria in your body.
Lactobacillus. There are more than 80 species of the Lactobacillus genus of probiotics. One of these species, acidophilus, is the most frequently used good bacterium, according to the University of Maryland Medical Center.Lactobacillus acidophilus, also called L. acidophilus, resides in the intestines where it helps in the digestion of food.As part of the digestion process, L. acidophilus produces lactic acid and hydrogen peroxide, which create unfavorable conditions for the growth of harmful bacteria.ood bacteria, also called probiotics, are similar to bacteria that reside naturally in your body.