Table 2.

List of Some of the Commonly Studied Probiotic Species and Their Positive Effects on the Host

Types of probiotics	Positive role
Lactobacillus acidophilus	It has been shown to prevent infectious diseases and favorably alter the intestinal microflora balance, thus inhibiting the growth of harmful bacteria, promoting good digestion, boosting immune function, and increasing resistance to infection.
Lactobacillus casei	It has been shown to increase the levels of circulating immunoglobulin A in infants infected with rotavirus, shortening the duration of diarrhea.
Lactobacillus rhamnosus(Lactobacillus GGa)	It has been shown to be effective in the management of acute pediatric diarrheal disease (Saavedra, 2001b) and reduces Candida colonization in neonates (Manzoni, 2007c). Lactobacillus GG has also been associated with reduced atopic dermatitis in infants when administered to pregnant women prenatally and during the first 6 months of the infant's life (Michail et al., 2006d)
Bifidobacterium lactis	It has been shown to reduce the incidence of antibiotic-associated diarrhea in infants.
Bifidobacterium bifidum	It has been shown to strengthen gastrointestinal immunity, especially in children.

^aFiled for patent on April 17, 1985, by Sherwood Gorbach and Barry Goldin, GG.

^bSee reference [112].

^cSee reference [113].

^dSee reference [114].